This is a list of all the questions and their associated study carrel identifiers. One can learn a lot of the "aboutness" of a text simply by reading the questions.
| identifier | question |
|---|---|
| 4908 | But what if these molecules, indestructible as they are, turn out to be not substances themselves, but mere affections of some other substance? |
| 4908 | But why should we labour to prove the advantage of practical science to the University? |
| 4908 | and how much is there of it? |
| 15207 | Considered as a factor of attraction, is mass really indestructible? |
| 15207 | How is it that its charge does not waste itself away, and what bonds assure the permanence of its constitution? |
| 15207 | New Views on Ether and Matter: Insufficiency of Larmor''s view-- Ether definable by electric and magnetic fields-- Is matter all electrons? |
| 15207 | What is the nature of this energy? |
| 15207 | When one looks at the phenomena of induction, would it not be just to remember that Arago foresaw them, and that Michael Faraday discovered them? |
| 15207 | Why? |
| 15207 | is-- Can we make a mechanical model which corresponds to it? |
| 10773 | At what distance would it have to be to have a time of fourteen days? 10773 But where did the ether atom come from? |
| 10773 | But who knows or cares for Kepler''s great law of Repulsion, or Apergy? 10773 Did it never occur to you that the ether of this solar system must be revolving around this central sun? |
| 10773 | Did you not see and know that if they had this revolution around a central sun it must be within a solar globe? 10773 What is the centre of this prana? |
| 10773 | What lies beyond the surface of the solar globe? 10773 But what are they in reality? 10773 Can you comprehend our system of metaphysics until you have clearly and completely mastered our physics? 10773 Can you not guess? 10773 Can you teach a child equation of payments before he knows the first four rules? 10773 Globes of Atma, Buddhi, and Consciousness in which the atoms, having organized, are in motion, are they not? 10773 Have we any other class of phenomena to explain, except vital and physical? 10773 How can you explain how and whence life comes, or what it is? 10773 How did it come? 10773 How do we know it? 10773 Mr. Willson, what is the melting point of iron? 10773 Pinafore''produced for the first time? |
| 10773 | That it consists of five ethers, corresponding to our five senses, as the ancient Hindus assert-- who can say? |
| 10773 | This explains physical, but how do you explain vital phenomena? |
| 10773 | What is it? |
| 10773 | What is not illusion? |
| 10773 | What then is real? |
| 10773 | Where did the atom come from? |
| 10773 | Why do you say the color has changed, and why do you say red? |
| 10773 | Why should it form by fives for iron, by nines for hydrogen? |
| 10773 | Why? |
| 10773 | Would you not get into a fog at the very start? |
| 48136 | But what are we to think of a governor who could play so scurvy a trick, and thus grossly deceive a poor young lad, wholly destitute of experience? |
| 48136 | But who would have supposed, said he, Franklin to be capable of such a composition? |
| 48136 | But, if the electrical fluid so easily pervades glass, how does the phial become_ charged_( as we term it) when we hold it in our hands? |
| 48136 | Can this be ascribed to the attraction of any surrounding body or matter drawing them asunder, or drawing the one away from the other? |
| 48136 | For if it was fine enough to come with the electric fluid through the body of one person, why should it stop on the skin of another? |
| 48136 | I have asked her, said my landlady, how, living as she did, she could find so much employment for a confessor? |
| 48136 | If it be asked, what thickness of a metalline rod may be supposed sufficient? |
| 48136 | If not, and repulsion exists in nature, and in magnetism, why may it not exist in electricity? |
| 48136 | May it not constitute a part, and even a principal part, of the solid substance of bodies? |
| 48136 | May not different degrees of the vibration of the above- mentioned universal medium, occasion the appearances of different colours? |
| 48136 | Must not the smallest particle conceivable have, with such a motion, a force exceeding that of a twenty- four pounder, discharged from a cannon? |
| 48136 | Nay, suppose I have drawn the electric matter from both of them, what becomes of it? |
| 48136 | Now want of sense, when a man has the misfortune to be so circumstanced, is it not a kind of excuse for want of modesty? |
| 48136 | The Abbé owns,_ p._ 94, that he had heard this remarked, but says, Why is not a conductor of electricity an electric subject? |
| 48136 | To which the Abbé thus objects;"Tell me( says he), I pray you, how much time is necessary for this pretended discharge? |
| 48136 | Were they all equally dry? |
| 48136 | Whether in a river, lake, or sea, the electric fire will not dissipate and not return to the bottle? |
| 48136 | Why will he have the phial, into which the, water is to be decanted from a charged phial, held in a man''s hand? |
| 48136 | Will not cork balls, electrised negatively, separate as far as when electrised positively? |
| 48136 | Would not the bottle in that case be left just as we found it, uncharged, as we know a metal bottle so attempted to be charged would be? |
| 48136 | Would not the fire, thrown in by the wire, pass through to our hands, and so escape into the floor? |
| 48136 | Would not this experiment convince the Abbé Nollet of his egregious mistake? |
| 48136 | _ Query_, What are the effects of air in electrical experiments? |
| 48136 | or, will it proceed in strait lines through the water the shortest courses possible back to the bottle? |
| 58404 | Also, Why Birds are made to flye, and not Beasts? |
| 58404 | And Vegetables such and such sorts of shapes and properties? |
| 58404 | And for what Cause, or Design, have Animals such and such sorts of shapes and properties? |
| 58404 | But some may ask, Whether the Sensitive Parts can perceive the Rational, in one and the same Creature? |
| 58404 | But some may ask,_ Whether the whole Mind of one Creature, as the whole Mind of one Man, may not perceive the whole Mind of another Man_? |
| 58404 | But the question is, Whether the Sensitive Parts of a Human Society, do, at any time, Contemplate? |
| 58404 | But, my Thoughts are, at this present, in some dispute; as, Whether the Earth is a Part of the Production of Vegetables, as being the Breeder? |
| 58404 | But, some may ask,_ What is Law?_ I answer: Law is, Limited Prescriptions and Rules. |
| 58404 | If not in this World, in any other World?_ The Minor Parts were of opinion, There were none in this World; but, that there were some in other Worlds. |
| 58404 | Some may ask the Question,_ Whether the Rational and Sensitive, have Perception of each other?_ I answer: In my Opinion, they have. |
| 58404 | The Parts of my Mind were in dispute, Whether the Interior Parts of a Human Creature, had sleeping and waking actions? |
| 58404 | Whether a Human Creature hath Knowledg in Death, or not? |
| 58404 | Whether their Productions were frequent, or not?_ The Minor Part''s Opinion, was, That they were frequent. |
| 58404 | _ Whether it might not probably be, that the Bones or Carcase of a Human Creature, were the Root of Human Life? |
| 58404 | _ Whether there were any in this World? |
| 48138 | What,say they,"shall we lay out our money to protect the trade of Quakers? |
| 48138 | Would twenty shillings have ruined Mr. Hampden''s fortune? 48138 Your reasons for that opinion?" |
| 48138 | Your reasons for that opinion? |
| 48138 | ''Methinks I hear some of you say,"must a man afford himself no leisure?" |
| 48138 | ''So what signifies wishing and hoping for better times? |
| 48138 | Admit it to be true, though perhaps the amazing increase of English consumption might stop most of it here,--to whose profit is this to redound? |
| 48138 | Among these witty gentlemen let us take a view of Ridentius: what a contemptible figure does he make with his train of paltry admirers? |
| 48138 | An odd volume of a set of books bears not the value of its proportion to the set: what think you of the odd half of a pair of scissars? |
| 48138 | And are not the public the only judges what share of reputation they think proper to allow any man? |
| 48138 | And are not the_ royal_ governments around us exempt from_ these_ misfortunes? |
| 48138 | And are ye still? |
| 48138 | And can you really, gentlemen, find matter of triumph in this_ rejection_ as you call it? |
| 48138 | And do they know that, by that statute, money is not to be raised on the subject but by consent of parliament? |
| 48138 | And do those of you, gentlemen, reproach me with this, who, among near four thousand voters, had scarcely a score more than I had? |
| 48138 | And if I draw ill ones, can they fit any but those that deserve them? |
| 48138 | And is our_ country_, any more than our city, altogether free from danger? |
| 48138 | And others who live in the country, when they are told of the danger the city is in from attempts by sea, may say,"What is that to us? |
| 48138 | And ought any but such to be concerned that they have their deserts? |
| 48138 | And possess it they did, even without a standing army:( what can be a stronger proof of the security of their possession?) |
| 48138 | And what are the advantages they may reasonably expect? |
| 48138 | And what hast thou here?_[ Would to God no such priests were to be found among us]. |
| 48138 | And why do you think I have a fixed enmity to the proprietaries? |
| 48138 | And why may not a man use the boldness and freedom of telling his friends, that their long visits sometimes incommode him? |
| 48138 | And why"except the Indian ravages,"is a_ little intermission_ to be denominated"the most perfect tranquillity?" |
| 48138 | And would it not seem less right, if the charge and labour of gaining the additional territory to Britain had been borne by the settlers themselves? |
| 48138 | And would they not then object to such a duty? |
| 48138 | And yet is there not too much of it? |
| 48138 | And yet_ here_ was no proprietary clamour about bribery,& c. And why so? |
| 48138 | And, after all, of what use is this pride of appearance, for which so much is risked, so much is suffered? |
| 48138 | Are not the people of city and country connected as relations, both by blood and marriage, and in friendships equally dear? |
| 48138 | Are there not pamphlets continually written, and daily sold in our streets, to justify and encourage it? |
| 48138 | Are these agents or commissaries to try causes where life is concerned? |
| 48138 | Are they not likewise united in interest, and mutually useful and necessary to each other? |
| 48138 | Are you then your own master? |
| 48138 | As how? |
| 48138 | But are these the sentiments of true Pensylvanians, of fellow- countrymen, or even of men, that have common sense or goodness? |
| 48138 | But if I go into a white man''s house at Albany, and ask for victuals and drink, they say, Where is your money? |
| 48138 | But is it not a fact known to you all, that the assembly_ did_ endeavour to strengthen the hands of the government? |
| 48138 | But is this right reasoning? |
| 48138 | But what does that avail to you, who are in the proprietary interest? |
| 48138 | But what is the testimony of the assembly; who in his opinion are equally rash, ignorant, and inconsiderate with the petitioners? |
| 48138 | But what will fame be to an ephemera, who no longer exists? |
| 48138 | By the colony assemblies, or by parliament? |
| 48138 | By whom are they to be repealed? |
| 48138 | By whom were they quieted? |
| 48138 | Called in again._]_ Q._ Is the American stamp act an equal tax on the country? |
| 48138 | Can no one bear it for me? |
| 48138 | Can this be from proprietary partizans? |
| 48138 | Can you really, gentlemen, by no means conceive, that proprietary government disagreements are incident to the nature of proprietary governments? |
| 48138 | Could he do this in Ireland? |
| 48138 | Could_ you_, much respected[ Mr. Norris], go but a little farther, and disapprove the application itself? |
| 48138 | Did you embrace it, and how often? |
| 48138 | Do_ you_ intend to give them up, when at the next election_ you_ are made assemblymen? |
| 48138 | For he govern''d his passions,& c. What signifies our wishing? |
| 48138 | For what have I done, that they should think unfavourably of me? |
| 48138 | From such an assembly can a perfect production be expected? |
| 48138 | Has the government sufficient strength, even with all its supports, to venture on the apprehending and punishment of those notorious offenders? |
| 48138 | Have we then any thing that we can call our own? |
| 48138 | Have you ever seen the barometer so low as of late? |
| 48138 | His circumstances are such, as only put him above necessity, without affording him many superfluities: yet who is greater than Cato? |
| 48138 | How different from this character is that of the good- natured, gay Eugenius? |
| 48138 | How many impertinencies do we daily suffer with great uneasiness, because we have not courage enough to discover our dislike? |
| 48138 | How shall we ever be able to pay them? |
| 48138 | How then can my going to England prevent this accommodation? |
| 48138 | How very few of us continue so long? |
| 48138 | I suppose it can not exceed 40,000_l.__ Q._ How then do you pay the balance? |
| 48138 | If I know a man to be a designing knave, must I ask his consent, to bid my friends beware of him? |
| 48138 | If any thing is meant by asking, why any man''s picture should be published which he never sat for? |
| 48138 | If it has not, why are you angry at those who would strengthen its hands by a more immediate royal authority? |
| 48138 | If it has, why is not the thing done? |
| 48138 | If it is asked,_ What_ can such farmers raise, wherewith to pay for the manufactures they may want from us? |
| 48138 | If so, tell it us honestly beforehand, that we may know what we are to expect when we are about to choose you? |
| 48138 | If such should be the case, which God forbid, how soon may the mischief spread to our frontier countries? |
| 48138 | If then we consider and compare Britain and America, in these several particulars, upon the question,"To which is it safest to lend money?" |
| 48138 | If you were a servant, would you not be ashamed that a good master should catch you idle? |
| 48138 | In fine, why should the countenance of a state be_ partially_ afforded to its people, unless it be most in favour of those who have most merit? |
| 48138 | In the mean time, why do you"believe it will preclude all_ accommodation_ with them on just and reasonable terms?" |
| 48138 | Is it as unpopular as it was at first? |
| 48138 | Is it not I, who, in the character of your physician, have saved you from the palsy, dropsy, and apoplexy? |
| 48138 | Is it right to encourage this monstrous deficiency of natural affection? |
| 48138 | Is not the parliament? |
| 48138 | Is not the whole province one body, united by living under the same laws, and enjoying the same privileges? |
| 48138 | Is our tranquillity more perfect now, than it was between the first riot and the second, or between the second and the third? |
| 48138 | Is there then the least hope remaining, that from that quarter any thing should arise for our security? |
| 48138 | It is true, that in some of the states there are parties and discords; but let us look back, and ask if we were ever without them? |
| 48138 | Must not the regret of our parents be excessive, at having placed so great a difference between sisters, who are so perfectly equal? |
| 48138 | Of what kinds of people are the members; landholders or traders? |
| 48138 | On whom may we fix our eyes with the least expectation, that they will do any thing for our security? |
| 48138 | Or can they be_ deprived_ of their charter rights without their consent?" |
| 48138 | Or, since they_ were not_ left there, why was the American dispute begun? |
| 48138 | Probably; but is there any case in any government where it is not possible to_ endeavour_ such a discovery? |
| 48138 | Shall we fight to defend Quakers? |
| 48138 | She may doubtless destroy them all; but if she wishes to recover our commerce, are these the probable means? |
| 48138 | Suppose either Indian or trader is dissatisfied with the tariff, and refuses barter on those terms, are the refusers to be compelled? |
| 48138 | That, at his honour''s instance, they prepared and passed in a few hours a bill for extending hither the act of parliament for dispersing rioters? |
| 48138 | The hasty gentleman, whose blood runs high, Who picks a quarrel, if you step awry, Who ca n''t a jest, or hint, or look endure: What''s he? |
| 48138 | The power of_ appointing public officers_ by the representatives of the people, which he so much extols, where is it now? |
| 48138 | Vos cunctamini etiam nunc,& dubitatis quid faciatis? |
| 48138 | Was it not worthy of his care, that the world should say he was an honest and a good man? |
| 48138 | Was it with an intent to reproach me thus publicly for accepting it? |
| 48138 | We all know how they were supported; but have they been_ fully_ supported? |
| 48138 | We can not all fly with our families; and if we could, how shall we subsist? |
| 48138 | We could not all conveniently start together: and why should you and I be grieved at this, since we are soon to follow, and know where to find him? |
| 48138 | Wedderburn._ The address mentions certain papers: I could wish to be informed what are those papers? |
| 48138 | Well, Hans, says I, I hope you have agreed to give more than four shillings a pound? |
| 48138 | What are our poets, take them as they fall, Good, bad, rich, poor, much read, not read at all? |
| 48138 | What could they desire more? |
| 48138 | What do they do there?" |
| 48138 | What do they spend it in when they are here, but the produce and manufactures of this country;--and would they not do the same if they were at home? |
| 48138 | What have I done to merit these cruel sufferings? |
| 48138 | What is your opinion they would do? |
| 48138 | What makest thou in this place? |
| 48138 | What other moves can I make to support it, and to defend myself from his attacks?" |
| 48138 | What then could their lordships mean by the proposed amendment? |
| 48138 | What use can my adversary make of it to annoy me? |
| 48138 | What would you advise us to?'' |
| 48138 | What? |
| 48138 | When wilt thou be esteemed, regarded, and beloved like Cato? |
| 48138 | When wilt thou, among thy creatures, meet with that unfeigned respect and warm good- will that all men have for him? |
| 48138 | Where then shall we seek for succour and protection? |
| 48138 | Wherewith, they say, shall we show our loyalty to our gracious king, if our money is to be given by others, without asking our consent? |
| 48138 | While the mornings are long, and you have leisure to go abroad, what do you do? |
| 48138 | Who shall pay that expence? |
| 48138 | Why should it? |
| 48138 | Why then should we grieve, that a new child is born among the immortals, a new member added to their happy society? |
| 48138 | Why then were the French_ not left_ in Canada, at the peace of 1763? |
| 48138 | Why was it so long delayed? |
| 48138 | Why was the bringing and the delivery of such orders so long_ denied_? |
| 48138 | Why was this man received with such concurring respect from every person in the room, even from those, who had never known him or seen him before? |
| 48138 | Why were those healing instructions so long withheld and concealed from the people? |
| 48138 | Will any paper match him? |
| 48138 | Will not the colonies view it in this light? |
| 48138 | Will not the first effect of this be, an enhancing of the price of all foreign goods to the tradesman and farmer, who use or consume them? |
| 48138 | Will not these heavy taxes quite ruin the country? |
| 48138 | Will the people that have begun to manufacture decline it? |
| 48138 | Will the wolves then protect the sheep, if they can but persuade them to give up their dogs? |
| 48138 | Would it not be better, to send the criminals into some civil well settled government or colony for trial, where good juries can be had? |
| 48138 | Would not the profits of the merchant and mariner be rather greater, and some addition made to our navigation, ships and seamen? |
| 48138 | Would this be right, even if the land were gained at the expence of the state? |
| 48138 | Would you have had your representatives give up those points? |
| 48138 | Would you know, how they forward the circulation of your fluids, in the very action of transporting you from place to place? |
| 48138 | Would you wish to see your great and amiable prince act a part that could not become a dey of Algiers? |
| 48138 | You ask, what I mean? |
| 48138 | You saw that we, who understand and practice those rules, believed all your stories, why do you refuse to believe ours?" |
| 48138 | Your reasons for that opinion? |
| 48138 | Your reasons for that opinion? |
| 48138 | [ 84]_ Q._ Do n''t you know that the money arising from the stamps was all to be laid out in America? |
| 48138 | [ 91]_ Q._ How much is the poll- tax in your province laid on unmarried men? |
| 48138 | [ 95]_ Q._ Would they do this for a British concern, as suppose a war in some part of Europe, that did not affect them? |
| 48138 | _ A._ Suppose a military force sent into America, they will find nobody in arms; what are they then to do? |
| 48138 | _ But what is the prudent policy, inculcated by the remarker to obtain this end, security of dominion over our colonies? |
| 48138 | _ Court._ Do you mean to found a charge upon them? |
| 48138 | _ Court._ Have you brought them? |
| 48138 | _ Court._ What time do you want? |
| 48138 | _ Franklin._--But do you charge among my crimes, that I return in a carriage from Mr. B----''s? |
| 48138 | _ Franklin._--How can you so cruelly sport with my torments? |
| 48138 | _ Franklin._--Is it possible? |
| 48138 | _ Franklin._--Not once? |
| 48138 | _ Franklin._--What then would you have me do with my carriage? |
| 48138 | _ Franklin._--Who is it that accuses me? |
| 48138 | _ Gout._--Sport? |
| 48138 | _ Q._ And have they not still the same respect for parliament? |
| 48138 | _ Q._ And is there not a tax laid there on their sugars exported? |
| 48138 | _ Q._ And what is their temper now? |
| 48138 | _ Q._ Are all parts of the colonies equally able to pay taxes? |
| 48138 | _ Q._ Are not all the people very able to pay those taxes? |
| 48138 | _ Q._ Are not ferrymen in America obliged, by act of parliament, to carry over the posts without pay? |
| 48138 | _ Q._ Are not the colonies, from their circumstances, very able to pay the stamp duty? |
| 48138 | _ Q._ Are not the lower rank of people more at their ease in America than in England? |
| 48138 | _ Q._ Are not the majority landholders? |
| 48138 | _ Q._ Are not the people in the more northern colonies obliged to fodder their sheep all the winter? |
| 48138 | _ Q._ Are not the taxes in Pensylvania laid on unequally, in order to burthen the English trade; particularly the tax on professions and business? |
| 48138 | _ Q._ Are not you concerned in the management of the_ post- office_ in America? |
| 48138 | _ Q._ Are there any words in the charter that justify that construction? |
| 48138 | _ Q._ Are there any_ fulling- mills_ there? |
| 48138 | _ Q._ Are there any_ slitting- mills_ in America? |
| 48138 | _ Q._ Are there no means of obliging them to erase those resolutions? |
| 48138 | _ Q._ Are they acquainted with the declaration of rights? |
| 48138 | _ Q._ Are they as much dissatisfied with the stamp duty as the English? |
| 48138 | _ Q._ Are you acquainted with Newfoundland? |
| 48138 | _ Q._ Before there was any thought of the stamp act, did they wish for a representation in parliament? |
| 48138 | _ Q._ But can you name any act of assembly, or public act of any of your governments, that made such distinction? |
| 48138 | _ Q._ But do they not consider the regulations of the post- office, by the act of last year, as a tax? |
| 48138 | _ Q._ But is not the post- office, which they have long received, a tax as well as a regulation? |
| 48138 | _ Q._ But must not he pay an additional postage for the distance to such inland town? |
| 48138 | _ Q._ But suppose Great Britain should be engaged in a_ war in Europe_, would North America contribute to the support of it? |
| 48138 | _ Q._ But what do you imagine they will think were the motives of repealing the act? |
| 48138 | _ Q._ But who are to be the judges of that extraordinary occasion? |
| 48138 | _ Q._ But who is to judge of that, Britain or the colony? |
| 48138 | _ Q._ But will not this increase of expence be a means of lessening the number of law- suits? |
| 48138 | _ Q._ Can any private person take up those letters and carry them as directed? |
| 48138 | _ Q._ Can any thing less than a military force carry the stamp act into execution? |
| 48138 | _ Q._ Can the post- master answer delivering the letter, without being paid such additional postage? |
| 48138 | _ Q._ Can there be wool and manufacture enough in one or two years? |
| 48138 | _ Q._ Can they possibly find wool enough in North America? |
| 48138 | _ Q._ Can we, at this distance, be competent judges of what favours are necessary? |
| 48138 | _ Q._ Can you disperse the stamps by post in Canada? |
| 48138 | _ Q._ Did the Americans ever dispute the controling power of parliament to regulate the commerce? |
| 48138 | _ Q._ Did the secretary of state ever write for_ money_ for the crown? |
| 48138 | _ Q._ Did you ever hear the authority of parliament to make laws for America questioned till lately? |
| 48138 | _ Q._ Did you never hear that Maryland, during the last war, had refused to furnish a quota towards the common defence? |
| 48138 | _ Q._ Did you never hear, that a great quantity of stockings were contracted for, for the army, during the war, and manufactured in Philadelphia? |
| 48138 | _ Q._ Do n''t you know that there is, in the Pensylvanian charter, an express reservation of the right of parliament to lay taxes there? |
| 48138 | _ Q._ Do n''t you think cloth from England absolutely necessary to them? |
| 48138 | _ Q._ Do n''t you think the distribution of stamps_ by post_ to all the inhabitants very practicable, if there was no opposition? |
| 48138 | _ Q._ Do not letters often come into the post- offices in America directed to some inland town where no post goes? |
| 48138 | _ Q._ Do not the resolutions of the Pensylvania assembly say-- all taxes? |
| 48138 | _ Q._ Do not they, as much as possible, shift the tax off from the land, to ease that, and lay the burthen heavier on trade? |
| 48138 | _ Q._ Do not you think the people of America would submit to pay the stamp duty, if it was moderated? |
| 48138 | _ Q._ Do the Americans pay any considerable taxes among themselves? |
| 48138 | _ Q._ Do they consider the post- office as a tax, or as a regulation? |
| 48138 | _ Q._ Do they not say, that neither external nor internal taxes can be laid on them by parliament? |
| 48138 | _ Q._ Do you know any thing of the_ rate of exchange in_ Pensylvania, and whether it has fallen lately? |
| 48138 | _ Q._ Do you know whether there are any post- roads on that island? |
| 48138 | _ Q._ Do you remember the abolishing of the paper- currency in New England, by act of assembly? |
| 48138 | _ Q._ Do you say there were no more than three hundred regular troops employed in the late Indian war? |
| 48138 | _ Q._ Do you think it right that America should be protected by this country, and pay no part of the expence? |
| 48138 | _ Q._ Do you think the assemblies have a right to levy money on the subject there, to grant_ to the crown_? |
| 48138 | _ Q._ Do you think then that the taking possession of the king''s territorial rights, and_ strengthening the frontiers_, is not an American interest? |
| 48138 | _ Q._ Does not the severity of the winter, in the northern colonies, occasion the wool to be of bad quality? |
| 48138 | _ Q._ Does the distinction between internal and external taxes exist in the words of the charter? |
| 48138 | _ Q._ Does this reasoning hold in the case of a duty laid on the produce of their lands_ exported_? |
| 48138 | _ Q._ For what purposes are those taxes laid? |
| 48138 | _ Q._ From the thinness of the back settlements, would not the stamp act be extremely inconvenient to the inhabitants, if executed? |
| 48138 | _ Q._ Have any number of the Germans seen service, as soldiers, in Europe? |
| 48138 | _ Q._ Have not instructions from hence been sometimes sent over to governors, highly oppressive and unpolitical? |
| 48138 | _ Q._ Have not some governors dispensed with them for that reason? |
| 48138 | _ Q._ Have not the assemblies in the West Indies the same natural rights with those in North America? |
| 48138 | _ Q._ Have you heard of any difficulties lately laid on the Spanish trade? |
| 48138 | _ Q._ Have you not seen the resolutions of the Massachusett''s Bay assembly? |
| 48138 | _ Q._ How can the commerce be affected? |
| 48138 | _ Q._ How is the assembly composed? |
| 48138 | _ Q._ How long are those taxes to continue? |
| 48138 | _ Q._ How many ships are there laden annually in North America with_ flax- seed_ for Ireland? |
| 48138 | _ Q._ How many white men do you suppose there are in North America? |
| 48138 | _ Q._ How then can they think they have a right to levy money for the crown, or for any other than local purposes? |
| 48138 | _ Q._ How then could the assembly of Pensylvania assert, that laying a tax on them by the stamp act was an infringement of their rights? |
| 48138 | _ Q._ If it should not, ought not the right to be in Great Britain of applying a remedy? |
| 48138 | _ Q._ If the act is not repealed, what do you think will be the consequences? |
| 48138 | _ Q._ If the parliament should repeal the stamp act, will the assembly of Pensylvania rescind their resolutions? |
| 48138 | _ Q._ If the same colony should say, neither tax nor imposition could be laid, does not that province hold the power of parliament can lay neither? |
| 48138 | _ Q._ If the stamp- act should be repealed, and the crown should make a requisition to the colonies for a sum of money, would they grant it? |
| 48138 | _ Q._ In the more southern colonies, as in Virginia, do n''t you know, that the wool is coarse, and only a kind of hair? |
| 48138 | _ Q._ In what light did the people of America use to consider the parliament of Great Britain? |
| 48138 | _ Q._ In what proportion hath population increased in America? |
| 48138 | _ Q._ Is it in their power to do without them? |
| 48138 | _ Q._ Is it not necessary to send troops to America, to defend the Americans against the Indians? |
| 48138 | _ Q._ Is it their interest not to take them? |
| 48138 | _ Q._ Is it their interest to make cloth at home? |
| 48138 | _ Q._ Is not the duty paid on the tobacco exported, a duty of that kind? |
| 48138 | _ Q._ Is not the post- office rate an internal tax laid by act of parliament? |
| 48138 | _ Q._ Is not this a tax on the ferrymen? |
| 48138 | _ Q._ Is there a power on earth that can force them to erase them? |
| 48138 | _ Q._ Is there not a balance of trade due from the colonies where the troops are posted, that will bring back the money to the old colonies? |
| 48138 | _ Q._ Is this all you mean; a letter from the secretary of state? |
| 48138 | _ Q._ On what do you found your opinion, that the people in America made any such distinction? |
| 48138 | _ Q._ Suppose an act of internal regulations connected with a tax, how would they receive it? |
| 48138 | _ Q._ Then may they not, by the same interpretation, object to the parliament''s right of external taxation? |
| 48138 | _ Q._ Then no regulation with a tax would be submitted to? |
| 48138 | _ Q._ To what causes is that owing? |
| 48138 | _ Q._ Was it an opinion in America before 1763, that the parliament had no right to lay taxes and duties there? |
| 48138 | _ Q._ Was it not at that time a very unpopular law? |
| 48138 | _ Q._ Was it not expected that the debt would have been sooner discharged? |
| 48138 | _ Q._ Was it not proposed at a public meeting? |
| 48138 | _ Q._ Was it not talked of in the other provinces as a proper measure, to apply to parliament to compel them? |
| 48138 | _ Q._ Was not lieutenant- governor Hutchinson principally concerned in that transaction? |
| 48138 | _ Q._ Was not the_ late war with the_ Indians,_ since the peace with France_, a war for America only? |
| 48138 | _ Q._ Was not the_ scarcity of gold and silver_ an argument used against abolishing the paper? |
| 48138 | _ Q._ Were you not reimbursed by parliament? |
| 48138 | _ Q._ What are the body of the people in the colonies? |
| 48138 | _ Q._ What are the present taxes in Pensylvania, laid by the laws of the colony? |
| 48138 | _ Q._ What becomes of the flax that grows with that flax- seed? |
| 48138 | _ Q._ What can the colonies mean then by imposition as distinct from taxes? |
| 48138 | _ Q._ What do you mean by its inexpediency? |
| 48138 | _ Q._ What do you think a sufficient military force to protect the distribution of the stamps in every part of America? |
| 48138 | _ Q._ What do you think is the reason that the people in America increase faster than in England? |
| 48138 | _ Q._ What is now their pride? |
| 48138 | _ Q._ What is the annual amount of_ all_ the taxes in Pensylvania? |
| 48138 | _ Q._ What is the number of men in America able to bear arms, or of disciplined militia? |
| 48138 | _ Q._ What is the present opinion there of that law? |
| 48138 | _ Q._ What is the usual constitutional manner of calling on the colonies for aids? |
| 48138 | _ Q._ What is your opinion of a future tax, imposed on the same principle with that of the stamp act? |
| 48138 | _ Q._ What may be the amount of one year''s imports into Pensylvania from Britain? |
| 48138 | _ Q._ What number of Germans? |
| 48138 | _ Q._ What number of them are Quakers? |
| 48138 | _ Q._ What number of white inhabitants do you think there are in Pensylvania? |
| 48138 | _ Q._ What then could occasion conversations on that subject before that time? |
| 48138 | _ Q._ What used to be the pride of the Americans? |
| 48138 | _ Q._ What was the temper of America towards Great Britain_ before the year_ 1763[87]? |
| 48138 | _ Q._ What will be the opinion of the Americans on those resolutions? |
| 48138 | _ Q._ When did you communicate that instruction to the minister? |
| 48138 | _ Q._ When did you receive the instructions you mentioned? |
| 48138 | _ Q._ When money has been raised in the colonies, upon requisitions, has it not been granted to the king? |
| 48138 | _ Q._ Why do you think so? |
| 48138 | _ Q._ Why do you think so? |
| 48138 | _ Q._ Why may it not? |
| 48138 | _ Q._ Why so? |
| 48138 | _ Q._ Why so? |
| 48138 | _ Q._ Will it not take a long time to establish that manufacture among them; and must they not in the mean while suffer greatly? |
| 48138 | _ Q._ Would it be most for the interest of Great Britain, to employ the hands of Virginia in tobacco, or in manufactures? |
| 48138 | _ Q._ Would it not have the effect of excessive usury? |
| 48138 | _ Q._ Would the people at Boston discontinue their trade? |
| 48138 | _ Q._ Would the repeal of the stamp act be any discouragement of your manufactures? |
| 48138 | _ Q._ Would they grant money alone, if called on? |
| 48138 | _ Q._ Would they suffer the produce of their lands to rot? |
| 48138 | by a majority of those that were to be commanded nominating three for each office to the governor, of which three he might take the one he liked best? |
| 48138 | can this, gentlemen, be matter of triumph? |
| 48138 | for in politics( what can laws do without morals?) |
| 48138 | how will you steer your brittle bark between these rocks? |
| 48138 | how would the Americans receive it? |
| 48138 | my enemy in person? |
| 48138 | since you all mean the same thing? |
| 48138 | such"total disregard"of their humble applications to the throne? |
| 48138 | whether he eats his English cheese and butter, or drinks his English ale, at London or in Barbadoes? |
| 36691 | 1, plate 11? |
| 36691 | 1, plate 12? |
| 36691 | 1, plate 13? |
| 36691 | 1, plate 15?) |
| 36691 | 1, plate 18? |
| 36691 | 1, plate 19? |
| 36691 | 1, plate 20? |
| 36691 | 1,--and how does it operate? |
| 36691 | 1. plate 10? |
| 36691 | 1. plate 2? |
| 36691 | 1. plate 3? |
| 36691 | 1. plate 6? |
| 36691 | 1. plate 7? |
| 36691 | 1. plate 9, designed to represent? |
| 36691 | 10) Can a liquid be said to be impenetrable? |
| 36691 | 10) Is the term_ matter_, restricted to substances of a particular kind? |
| 36691 | 10) What is intended by the term_ bodies_? |
| 36691 | 10) What is meant by impenetrability? |
| 36691 | 100) How does the sun then shine at the poles, and what is the effect on the days and nights? |
| 36691 | 100) How is the north pole inclined in the middle of our summer, and what effect has this on the north frigid zone? |
| 36691 | 100) In what direction does the north pole always point? |
| 36691 | 100) What is shown by the position of the earth at B, in the figure? |
| 36691 | 101) How does the sun appear at the poles, during the period of day there? |
| 36691 | 101) In what will the days and nights differ in the temperate zone, from those at the poles, and at the equator? |
| 36691 | 101) When the earth has passed the autumnal equinox, what changes take place at the poles, and also in the whole northern and southern hemispheres? |
| 36691 | 101) Why is the heat greatest within the torrid zone? |
| 36691 | 102) In proceeding from the vernal equinox to the summer solstice, what changes take place? |
| 36691 | 102) What takes place at the time of the vernal equinox, and what is meant by the term? |
| 36691 | 103) From what cause arises the superior heat of the equatorial regions? |
| 36691 | 103) Why should oblique rays afford less heat than those which are perpendicular? |
| 36691 | 104) What causes conspire to lessen the solar heat in the morning and evening? |
| 36691 | 104) What other cause lessens the intensity of oblique rays? |
| 36691 | 105) Do the fixed stars require the same time as the sun, to return to the same meridian? |
| 36691 | 105) How is this accounted for? |
| 36691 | 105) In 365 days, how many times does the earth revolve on its axis? |
| 36691 | 105) Is there any change of seasons in the other planets? |
| 36691 | 105) What is said respecting the axes of Jupiter, of Mars, and of Saturn? |
| 36691 | 106) How is this accounted for? |
| 36691 | 106) What is meant by the solar and the sidereal day? |
| 36691 | 106) What is the difference in time between them? |
| 36691 | 106) What is the length of the tropical year? |
| 36691 | 107) The solar year is completed before the earth has made a complete revolution in its orbit, by what is this caused? |
| 36691 | 107) What difference is there in the length of the solar and sidereal year? |
| 36691 | 107) Why can we not always ascertain the true time by the apparent place of the sun? |
| 36691 | 108) As the moon revolves round the earth, and also accompanies it in its annual revolution, in what form would you draw the moon''s orbit? |
| 36691 | 108) In what time does the moon revolve round the earth? |
| 36691 | 108) What would be the greatest difference between solar, and true time, as indicated by a perfect clock? |
| 36691 | 109) Can the earth be seen from every part of the moon, and will it always exhibit the same appearance? |
| 36691 | 109) What are the changes of the moon called? |
| 36691 | 109) What by her being full? |
| 36691 | 109) What by her being horned, and her being gibbous? |
| 36691 | 109) What by her third quarter? |
| 36691 | 109) What causes the moon always to present the same face to the earth, and what must be the length of a day and night to its inhabitants? |
| 36691 | 109) What is meant by her first quarter? |
| 36691 | 11) How can you prove that air is impenetrable? |
| 36691 | 11) How do we distinguish the terms height and depth? |
| 36691 | 11) If air is impenetrable, what causes the water to rise some way into a goblet, if I plunge it into water with its mouth downward? |
| 36691 | 11) In how many directions, is a body said to have extension? |
| 36691 | 11) When I drive a nail into wood, do not both the iron and the wood occupy the same space? |
| 36691 | 110) Are total eclipses of the sun frequent, and when they happen what is their extent? |
| 36691 | 110) By what are eclipses of the sun caused? |
| 36691 | 110) What causes eclipses of the moon? |
| 36691 | 110) What causes partial eclipses of the moon? |
| 36691 | 110) What is meant by her conjunction?--what by her being in opposition?--what by her quadratures? |
| 36691 | 110) What is meant by the moon''s nodes? |
| 36691 | 110) When the moon is exactly in one of her nodes, what length of time will she be eclipsed? |
| 36691 | 110) Why do not eclipses happen at every new and full moon? |
| 36691 | 111) How are lunar eclipses visible, and what is proved by their duration? |
| 36691 | 111) What does this prove respecting the size of the moon? |
| 36691 | 111) What remark is made respecting those planets which have several moons? |
| 36691 | 111) What use is made of the eclipses of the satellites of Jupiter? |
| 36691 | 112) By what other means may latitude be found? |
| 36691 | 112) From what is longitude reckoned? |
| 36691 | 112) How does the rotation of the earth upon its axis, govern the time at different places? |
| 36691 | 112) How is the latitude of a place usually found? |
| 36691 | 113) By what means may a captain find the time at London, and in the place where his ship may be? |
| 36691 | 113) How may the eclipses of Jupiter''s satellites be used to find the longitude? |
| 36691 | 113) What two circumstances, if known, will enable you to find your longitude from a given place? |
| 36691 | 114) By what are tides caused? |
| 36691 | 114) How will you know whether the longitude is east or west? |
| 36691 | 114) What is meant by the transit of a planet? |
| 36691 | 114) Why can we see transits of Venus and Mercury only? |
| 36691 | 114) Why is not a similar effect produced on the land? |
| 36691 | 115) In what two parts of the world is it high water at the same time? |
| 36691 | 115) What circumstances respecting the decrease of attraction are taken into account, in explaining the tides? |
| 36691 | 116) Has the sun any influence on the tides, and why is it less than that of the moon? |
| 36691 | 116) What by neap tides, and how are they caused? |
| 36691 | 116) What circumstances affect the time of the tide in rivers, bays,& c.? |
| 36691 | 116) What is meant by spring tides, and how are they produced? |
| 36691 | 117) Why are the tides three- quarters of an hour later every day? |
| 36691 | 117) Why in the open ocean, is it high water, some hours after the moon has passed the meridian? |
| 36691 | 118) From what is fluidity supposed to arise? |
| 36691 | 118) Into what two classes are fluids divided? |
| 36691 | 118) Of what do hydrostatics and hydraulics treat? |
| 36691 | 118) What are the two divisions of the science which treats of the mechanical properties of liquids? |
| 36691 | 118) What is a fluid defined to be? |
| 36691 | 119) Ought this experiment to be considered as conclusive? |
| 36691 | 119) What is said of the incompressibility of liquids, and what experiment is related? |
| 36691 | 119) Why do fluids appear to gravitate more freely than solids? |
| 36691 | 12) What constitutes the_ figure_, or_ form_ of a body? |
| 36691 | 12) What examples can you give, to prove that the particles of a body are minute in the extreme? |
| 36691 | 12) What is meant by divisibility? |
| 36691 | 12) What is said respecting the form of minerals? |
| 36691 | 12) What of artificial, and accidental forms? |
| 36691 | 12) What of the vegetable and animal creation? |
| 36691 | 12, accounted for? |
| 36691 | 120) What circumstances occasion oil to float upon water? |
| 36691 | 120) What difference is there in the gravitation of solid masses, and of fluids? |
| 36691 | 120) What is there in the nature of a fluid, which causes it to seek this level? |
| 36691 | 120) When is a fluid said to be in equilibrium? |
| 36691 | 121) From what does the lateral pressure proceed? |
| 36691 | 121) What results as regards the pressure of fluids? |
| 36691 | 122) Has the extent of the surface of a fluid, any effect upon its pressure downwards? |
| 36691 | 122) What will be the difference between the pressure upon the bottom, and upon one side of a cubical vessel? |
| 36691 | 123) How could the equilibrium of fluids be exemplified by pouring water in at the spout of a tea- pot? |
| 36691 | 123) What do we in common mean by calling a body heavy, or light? |
| 36691 | 123) What is meant by the specific gravity of a body? |
| 36691 | 124) What has been adopted as a standard for comparison? |
| 36691 | 124) What must be supposed equal in estimating the specific gravity of a body? |
| 36691 | 124) Why would not the metals answer to compare other bodies with? |
| 36691 | 125) What is the first step in ascertaining the specific gravity of a solid? |
| 36691 | 125) What quantity of water will the solid displace? |
| 36691 | 125) Why will a solid weigh less in water than in air, and to what will the loss of weight be equal? |
| 36691 | 126) In comparing a body with water, this is sometimes called 1000, what must be observed? |
| 36691 | 126) What is stated of gold as an example? |
| 36691 | 126) What quantity of water is displaced, by a body floating upon its surface? |
| 36691 | 127) How can you find the specific gravity of a solid which is lighter than water? |
| 36691 | 127) What is observed of a body whose specific gravity is the same as that of water? |
| 36691 | 127) What is the reason that in drawing a bucket of water from a well, its weight is not perceived until it rises above the surface? |
| 36691 | 129) How may drops of rain be formed? |
| 36691 | 129) Why do not the frequent rains, fill the earth with water? |
| 36691 | 129) Why will vapour rise? |
| 36691 | 13) Can matter be in any way annihilated? |
| 36691 | 13) How do odours exemplify the minuteness of the particles of matter? |
| 36691 | 13) What becomes of the fuel, which disappears in our fires? |
| 36691 | 13) What produces the odour of bodies? |
| 36691 | 130) What becomes of the water after it has fallen to the earth? |
| 36691 | 130) What is the difference between rain water, and that from springs? |
| 36691 | 130) Why is rain more pure than spring water? |
| 36691 | 130) Why is spring water more agreeable to the palate? |
| 36691 | 131) What causes the water to collect and form springs? |
| 36691 | 131) Why can not water penetrate through clay? |
| 36691 | 132) How can you account for its rising upwards, as represented at C? |
| 36691 | 132) In conveying water by means of pipes, how must the reservoir be situated? |
| 36691 | 133) Wells and springs, at some periods well supplied, fail at others; how is this accounted for? |
| 36691 | 133) When water is found in elevated situations, whence is it supplied? |
| 36691 | 133) Why are wells rarely well supplied with water, in elevated situations? |
| 36691 | 134) Some springs flow abundantly in dry weather, which occasionally fail in wet weather, how may this be explained? |
| 36691 | 134) What is meant by intermitting springs? |
| 36691 | 134) Whence do rivers, in general, derive their water? |
| 36691 | 134) Why do springs abound more in mountainous, than in level countries? |
| 36691 | 135) How are lakes formed? |
| 36691 | 135) What causes water to rise in fountains, and how is this explained by figure 2, plate 14? |
| 36691 | 135) Why will not the fountain rise to the height of the water in the reservoir? |
| 36691 | 136) In what particular do elastic, differ from non- elastic, fluids? |
| 36691 | 136) Into what two kinds are fluids divided? |
| 36691 | 136) There are different kinds of elastic fluids, in what properties are they alike, and in what do they differ? |
| 36691 | 136) What is meant by the elasticity of air? |
| 36691 | 137) What is said respecting the weight of the atmosphere? |
| 36691 | 137) What would be the effect of relieving us from atmospheric pressure? |
| 36691 | 137) Why do we not feel the pressure of the air? |
| 36691 | 138) How is this explained? |
| 36691 | 138) How may its elasticity be exhibited, by an apple, and by a bladder? |
| 36691 | 138) How may the weight of the air be shown by the aid of the air pump, and a piece of bladder? |
| 36691 | 139) How can the weight of a small bulk of air be found? |
| 36691 | 139) What is the absolute weight of a given column of atmospheric air, and how could its whole pressure upon the earth be ascertained? |
| 36691 | 14) How can that part which evaporates, be still said to possess a substantial form? |
| 36691 | 14) What do we mean by_ inertia_? |
| 36691 | 14) What general power do the particles of matter exert upon other particles? |
| 36691 | 140) How could you ascertain the specific gravity of air, and what would it be? |
| 36691 | 140) In ascertaining the weight of air, we take account of its temperature-- Why? |
| 36691 | 141) Of what use are the divisions in the upper part of the instrument? |
| 36691 | 141) To what height will the mercury rise, and what occasions this height to vary? |
| 36691 | 141) What occasions the sensation of oppression, in damp weather? |
| 36691 | 141) What sustains the mercury in the tube? |
| 36691 | 141) When is the mercury highest, in wet, or in dry weather? |
| 36691 | 142) Is any inconvenience experienced by persons ascending to great heights, and from what cause? |
| 36691 | 142) To what height will the pressure of the atmosphere raise a column of water? |
| 36691 | 142) What governs the difference between the height of the mercury, and of the water? |
| 36691 | 142) What occasions the rise and fall of the mercury, in a thermometer? |
| 36691 | 142) Why will the barometer indicate the height of mountains, or of balloons? |
| 36691 | 143) How does the common pump, raise water from a well? |
| 36691 | 143) What is meant by a piston? |
| 36691 | 144) How do these parts act, in raising the water? |
| 36691 | 144) How must the piston be situated in the pump? |
| 36691 | 144) In what does that which is commonly called suction, consist? |
| 36691 | 144) What other kind of pump is described? |
| 36691 | 146) How do the winds blow, around the place where the air becomes rarefied? |
| 36691 | 146) What effect is likely to be produced where the winds meet? |
| 36691 | 146) What is wind, and how is it generally produced? |
| 36691 | 147) How are the trade- winds produced, and how far do they extend? |
| 36691 | 147) How do these winds change their direction as they approach the equator? |
| 36691 | 147) How is the equilibrium in the air restored? |
| 36691 | 147) In what part of the globe is the air most rarefied, and what is the consequence? |
| 36691 | 148) How can contrary currents of air be shown in a room? |
| 36691 | 148) What causes this? |
| 36691 | 148) What is meant by a periodical wind? |
| 36691 | 148) What occasions the land and sea breezes, and where do they prevail? |
| 36691 | 149) How do they change, and what is the cause? |
| 36691 | 149) What are monsoons? |
| 36691 | 149) What is meant by their breaking up, and what effect is in general produced? |
| 36691 | 149) Why is the wind most variable in high latitudes? |
| 36691 | 15) Does the attraction of cohesion exist in liquids, and how is its existence proved? |
| 36691 | 15) From what then do you infer that they possess attraction? |
| 36691 | 15) How do you account for some bodies being hard and others soft? |
| 36691 | 15) If the particles of air attract each other, why do they not cohere? |
| 36691 | 15) What is that species of attraction called, which keeps bodies in a solid state? |
| 36691 | 150) What effect must the sun and moon produce upon the atmosphere, from their attraction? |
| 36691 | 150) Why do not the à ¦ rial tides affect the barometer? |
| 36691 | 150) Why is the wind apt to lessen about sunset? |
| 36691 | 151) By what experiment might we prove that air is the principal vehicle of sound? |
| 36691 | 151) Does sound exist in the sonorous body, if not, what is it? |
| 36691 | 151) How is sound produced? |
| 36691 | 152) How is it illustrated by a stone thrown into water, and how far does this illustration apply? |
| 36691 | 152) To what do they owe this property? |
| 36691 | 152) What is meant by a sonorous body? |
| 36691 | 152) What other bodies convey sound, and how can it be shown that they do so? |
| 36691 | 153) At what rate is sound said to travel? |
| 36691 | 153) How are the vibrations propagated? |
| 36691 | 153) How can we prove that sound, does not travel as rapidly as light? |
| 36691 | 153) How will sound enable us to judge of the distance of objects? |
| 36691 | 153) Is the velocity much influenced by the direction of the wind? |
| 36691 | 154) How are echoes produced? |
| 36691 | 155) Does the force, with which a string is struck, affect the rapidity of its vibrations? |
| 36691 | 155) How are the strings made to produce the high and low notes? |
| 36691 | 155) How is a musical tone produced? |
| 36691 | 155) Upon what does the acuteness or gravity of a sound depend? |
| 36691 | 155) What is meant by harmony, or concord, and how is it produced? |
| 36691 | 155) What occasions discords? |
| 36691 | 156) How are fifths produced? |
| 36691 | 156) How are octaves produced? |
| 36691 | 156) How major and minor thirds? |
| 36691 | 156) What is meant by melody, and in what particular does it differ from harmony? |
| 36691 | 156) When are strings said to be in unison? |
| 36691 | 157) What are transparent bodies? |
| 36691 | 157) What is a medium? |
| 36691 | 157) What is meant by a dark body, and what by an opaque body? |
| 36691 | 157) What is meant by a luminous body? |
| 36691 | 157) What is optics? |
| 36691 | 158) Do we know whether light is a substance, similar to bodies in general? |
| 36691 | 158) What is a ray, and what a pencil of rays? |
| 36691 | 158) When a ray of light falls upon an opaque body, what is the result? |
| 36691 | 158) Why do not the rays of light from different points, stop each other''s progress? |
| 36691 | 159) In what does shadow consist? |
| 36691 | 159) Upon what does the intensity of a shadow depend? |
| 36691 | 159) When is the shadow larger than the intercepting body? |
| 36691 | 159) Why are they, in general, but partially dark? |
| 36691 | 16) Do the most dense bodies always cohere the most strongly? |
| 36691 | 16) How do we know that one body is more dense than another? |
| 36691 | 16) What is meant by the term_ density_? |
| 36691 | 16) What is there which acts in opposition to cohesive attraction, tending to separate the particles of bodies? |
| 36691 | 160) What becomes of the light which falls upon an opaque body? |
| 36691 | 160) What is meant by reflection? |
| 36691 | 160) Why will neither of these shadows be very dark? |
| 36691 | 161) By what light are we enabled to see opaque, and by what, luminous bodies? |
| 36691 | 161) What enables us to see a ray of light in its passage, through a darkened room? |
| 36691 | 161) What is meant by the incident, and reflected rays? |
| 36691 | 161) What is the result, when the incident ray falls perpendicularly, and what, when it falls obliquely? |
| 36691 | 161) What two angles are always equal in this case? |
| 36691 | 162) By what reasoning would you prove that an object, such, for example, as a house, is seen by reflected light? |
| 36691 | 162) How is the fact exemplified by the sun, or moon, shining upon water? |
| 36691 | 162) Why is this best evinced by moonlight? |
| 36691 | 162) Why may one side of such object appear more bright than another side? |
| 36691 | 163) By what light do we see the moon, and why is it comparatively feeble? |
| 36691 | 163) What circumstance, renders objects seen by moonlight, still less vivid? |
| 36691 | 164) How do the rays of light operate on the eye in producing vision? |
| 36691 | 164) How is it explained in plate 16? |
| 36691 | 164) How may this be exemplified, in a darkened room? |
| 36691 | 164) What by the retina? |
| 36691 | 164) What is meant by a_ camera obscura_? |
| 36691 | 164) What is meant by the pupil of the eye? |
| 36691 | 165) Is it the object, or its picture on the retina, which presents to the mind an idea of the object seen? |
| 36691 | 165) What analogy is there between the camera obscura, and the eye? |
| 36691 | 165) Why are the objects inverted and reversed? |
| 36691 | 166) By what organs is sensation produced, and how must these organs be affected? |
| 36691 | 166) How will the idea of contact, apply to objects not touching the eye? |
| 36691 | 167) Why do not objects appear reversed to the eye, as in the camera obscura? |
| 36691 | 168) What is meant by the angle of vision, or the visual angle? |
| 36691 | 169) How is this exemplified, by a house seen through a window? |
| 36691 | 169) Why do not two objects, known to be equal in size, appear to differ, when at different distances from the eye? |
| 36691 | 169) Why do objects of the same size appear smaller when distant, than when near? |
| 36691 | 17) How are drops of rain and of dew said to be formed? |
| 36691 | 17) If we continue to increase the heat, what effects will it produce on bodies? |
| 36691 | 17) What body has its dimensions most sensibly affected by change of temperature? |
| 36691 | 17) What examples can you give? |
| 36691 | 17) What power restores vapours to the liquid form? |
| 36691 | 17) What would be the consequence if the repulsive power of heat were not exerted? |
| 36691 | 170) Excepting the rays from an object enter the eye, under a certain angle, they can not be seen; what must this angle exceed? |
| 36691 | 170) In drawing a view from nature, what do we copy? |
| 36691 | 170) Motion may be so slow as to become imperceptible, what is said on this point? |
| 36691 | 170) Under what circumstances may a body, moving with great rapidity, appear to be at rest? |
| 36691 | 170) Upon what does the real velocity of a body, depend? |
| 36691 | 170) What is the difference in sculpture, in this respect? |
| 36691 | 170) What two circumstances may cause the angle to be so small, as not to produce vision? |
| 36691 | 170) Why do rows of trees, forming an avenue, appear to approach as they recede from the eye, until they eventually seem to meet? |
| 36691 | 171) An image of a visible object is formed upon the retina of each eye, why, therefore, are not objects seen double? |
| 36691 | 171) What is said respecting the evidence afforded by our senses, and how do we correct the errors into which they would lead us? |
| 36691 | 171) What must be known, to enable us to ascertain the real space contained in a degree? |
| 36691 | 172) By what experiment can you prove that a separate image of an object is formed in each eye? |
| 36691 | 172) Under what circumstances are objects seen double? |
| 36691 | 172) Why is not the image of an object inverted in the common mirror? |
| 36691 | 173) In what direction will an object always appear to the eye? |
| 36691 | 173) In what situation may a second person see the image reflected? |
| 36691 | 173) What is it that reflects the rays in a looking- glass? |
| 36691 | 173) Why is the image invisible to the person, when not standing directly before the glass? |
| 36691 | 174) All opaque bodies reflect some light, why do they not all act as mirrors? |
| 36691 | 174) How are the rays of light affected by them? |
| 36691 | 174) What are the three kinds of mirrors usually employed for optical purposes? |
| 36691 | 174) What substances form the most perfect mirrors, and for what reason? |
| 36691 | 175) At what distance behind such a mirror, would an image, produced by parallel rays, be formed? |
| 36691 | 175) What is represented by the dotted line in the same figure? |
| 36691 | 175) What is that point denominated? |
| 36691 | 176) What is a concave mirror, and what its peculiar property? |
| 36691 | 176) What is meant by a focus? |
| 36691 | 176) Why is the point behind the mirror, called the_ imaginary focus_? |
| 36691 | 177) How if divergent? |
| 36691 | 177) How, and why, may concave, become burning mirrors? |
| 36691 | 177) If rays fall on it convergent, how are they reflected? |
| 36691 | 177) Where is the focus of parallel rays, in a concave mirror? |
| 36691 | 178) If a luminous body, as a burning taper, be placed in the focus of a concave mirror, how will the rays from it, be reflected? |
| 36691 | 178) Why may rays of light coming from the sun, be viewed as parallel to each other? |
| 36691 | 179) What is believed to be the cause of refraction? |
| 36691 | 179) What is meant by the refraction of light? |
| 36691 | 18) In what does_ gravitation_ differ from cohesive attraction? |
| 36691 | 18) What causes bodies near the earth''s surface, to have a tendency to fall towards it? |
| 36691 | 18) What effect does attraction produce when these are immersed in water? |
| 36691 | 18) What is meant by a capillary tube? |
| 36691 | 18) What is the reason that the water rises to a certain height only? |
| 36691 | 180) How is a ray refracted in passing obliquely from air into water? |
| 36691 | 180) What is the rule respecting refraction, by different mediums? |
| 36691 | 181) What effect has refraction upon the apparent depth of a stream of water? |
| 36691 | 181) What is meant by the perpendicular? |
| 36691 | 181) What will be the effect on the apparent situation of the flower? |
| 36691 | 182) How is the length of the day affected by refraction? |
| 36691 | 182) What effect has this upon his apparent place? |
| 36691 | 182) What length of time is required for light to travel from the sun, to the earth? |
| 36691 | 182) Why have we the rays of the sun always refracted? |
| 36691 | 183) What is the reason that objects are distorted, when seen through common window glass? |
| 36691 | 184) What is meant by a lens? |
| 36691 | 184) What is meant by the axis of a lens? |
| 36691 | 184) What is meant by the focus of a lens? |
| 36691 | 184) What is the focal distance of parallel rays, from a double convex lens? |
| 36691 | 185) How will a ray be refracted, which enters on one side of the prism, in the direction A B? |
| 36691 | 185) What is the effect of one plane side in a lens? |
| 36691 | 186) By what property, in light, does refraction enable us to separate these different rays? |
| 36691 | 186) Of what are the rays of white light said to be composed? |
| 36691 | 186) What colours are produced? |
| 36691 | 187) Is it certain that there are seven primitive colours in the spectrum? |
| 36691 | 187) What experiment may be performed with a piece of card, so as to exemplify the compound nature of light? |
| 36691 | 188) How are the solar rays affected by a convex lens? |
| 36691 | 188) How is the rainbow produced, and what is necessary to its production? |
| 36691 | 188) Why are bodies of a dark colour, more readily inflamed, than those which are white? |
| 36691 | 188) Why is such a lens, called a burning glass? |
| 36691 | 189) By what reasoning is it proved, that bodies do not retain their colours in the dark? |
| 36691 | 189) What determines the colour of any particular body? |
| 36691 | 189) What exemplifications are given? |
| 36691 | 189) What is believed to be the reason, why some bodies absorb more rays than others? |
| 36691 | 19) In what instances does the power of cohesion counteract that of gravitation? |
| 36691 | 19) What remarkable difference is there between the attraction of gravitation, and that of cohesion? |
| 36691 | 19) Why will water rise to a less height, if the size of the tube is increased? |
| 36691 | 190) What proof of the truth of this theory of colours, may be afforded by the prism? |
| 36691 | 191) Bodies, in general, when placed in a ray differing in colour from their own, appear of a mixed hue, what causes this? |
| 36691 | 191) Why will bodies of a pale, or light hue, most perfectly, assume the different colours of the spectrum? |
| 36691 | 191) Why will green leaves, when exposed to the red ray, appear of a dingy brown? |
| 36691 | 192) From what cause do blue articles appear green, by candle- light? |
| 36691 | 192) Upon what property in a body, does the darkness of its colour depend? |
| 36691 | 192) Why do some bodies appear white, others black, and others of different colours? |
| 36691 | 193) From what cause do some bodies change their colour, as leaves formerly green, become brown, and ink, yellow? |
| 36691 | 193) From what is the blue colour of the sky, thought to arise? |
| 36691 | 193) What is believed to be the cause, of the red appearance of the sun, through a fog, or misty atmosphere? |
| 36691 | 193) What would be the colour of the sky, did not the atmosphere reflect light? |
| 36691 | 194) Why is a black dress, warmer in the sunshine, than a white one of the same texture? |
| 36691 | 195) The pupils dilate and contract, what purpose does this answer? |
| 36691 | 195) What is its external coat called? |
| 36691 | 195) What is the coloured part which surrounds the pupil? |
| 36691 | 195) What is the form of the body of the eye? |
| 36691 | 195) What is the second coat named? |
| 36691 | 195) What is the transparent part of this coat denominated? |
| 36691 | 195) What opening is there in this? |
| 36691 | 196) How could you observe the dilatation and contraction of the pupils? |
| 36691 | 196) In what animals is the change in the iris greatest? |
| 36691 | 196) What are the three humours denominated, and how are they situated? |
| 36691 | 196) What purpose is the choroid said to answer? |
| 36691 | 197) What are the respective uses of the humours, and of the retina? |
| 36691 | 197) What is the part represented at_ i i_, and of what does it consist? |
| 36691 | 197) Why is it necessary the rays should be refracted? |
| 36691 | 198) What causes a person to be short- sighted? |
| 36691 | 198) Why does placing an object near the eye, enable such, to see distinctly? |
| 36691 | 199) A concave lens remedies this defect; how? |
| 36691 | 199) What is the remedy, when a person is long- sighted? |
| 36691 | 199) Why does holding an object far from the eye, help such persons? |
| 36691 | 1? |
| 36691 | 2 and 3, plate 10? |
| 36691 | 2 intended to explain? |
| 36691 | 2, 3, plate 13? |
| 36691 | 2, plate 12? |
| 36691 | 2, plate 17? |
| 36691 | 2, plate 20? |
| 36691 | 2, plate 9? |
| 36691 | 2, that their momentums may be equal? |
| 36691 | 2, what are they? |
| 36691 | 2. plate 11? |
| 36691 | 2. plate 5? |
| 36691 | 2. plate 7? |
| 36691 | 2.)? |
| 36691 | 20) Can two bodies be made sufficiently flat to cohere with considerable force? |
| 36691 | 20) What is the reason that the adhesion is greater when oil is interposed? |
| 36691 | 20) Why do not two bodies cohere, when laid upon each other? |
| 36691 | 200) How is the eye said to adapt itself to distant, and to near objects? |
| 36691 | 200) Why are objects rendered indistinct, when placed very near to the eye? |
| 36691 | 201) How may objects be magnified without the aid of a lens? |
| 36691 | 201) Why can an object, very near to the eye, be distinctly seen, when viewed through a small hole? |
| 36691 | 202) Why may minute objects be greatly magnified by this instrument? |
| 36691 | 203) In what does the magic lanthorn differ from the solar microscope? |
| 36691 | 203) What is added when opaque objects are to be viewed? |
| 36691 | 204) In what does the reflecting, differ from the refracting telescope? |
| 36691 | 204) What advantages, do reflecting, possess over refracting telescopes? |
| 36691 | 204) What part of the telescope performs the part of a microscope? |
| 36691 | 204) When terrestrial objects are to be viewed, why are two additional lenses employed? |
| 36691 | 21) What other modifications of attraction are there, besides those of cohesion and of gravitation? |
| 36691 | 22) What are those properties of bodies called, which are not common to all? |
| 36691 | 23) What is the cause of weight in bodies? |
| 36691 | 23) What is the reason that all bodies near to the surface of the earth, are drawn towards it? |
| 36691 | 23) Why are they so called? |
| 36691 | 24) If attraction be in proportion to the mass, why does not a hill, draw towards itself, a house placed near it? |
| 36691 | 24) If attraction is the cause of weight, could you suppose it possible for a body to possess the former and not the latter property? |
| 36691 | 24) If the attraction be mutual, why does not the earth approach the stone, as much as the stone approaches the earth? |
| 36691 | 24) When a stone falls to the ground, in which of the two bodies does the power of attraction exist? |
| 36691 | 25) How can the attraction of a mountain be rendered sensible? |
| 36691 | 25) Why can not two lines which are perpendicular to the surface of the earth be parallel to each other? |
| 36691 | 27) If bodies were not resisted by the air, those which are light, would fall as quickly as those which are heavy, how can you account for this? |
| 36691 | 27) What then is the reason that a book, and a sheet of paper, let fall from the same height, will not reach the ground in the same time? |
| 36691 | 28) Inform me how a very dense body may be made to float in the air? |
| 36691 | 28) The air is a real body, why does it not fall to the ground? |
| 36691 | 28) What could you do to a sheet of paper, to make it fall quickly, and why? |
| 36691 | 28) What then will be the effect of increasing the surface of a body? |
| 36691 | 29) Smoke and vapour ascend in the atmosphere, how can you reconcile this with gravitation? |
| 36691 | 29) What is it which causes the particles of air to recede from each other, and seems to destroy their mutual attraction? |
| 36691 | 3 and 4, plate 21? |
| 36691 | 3, plate 18? |
| 36691 | 3, plate 19, elucidate the law of refraction? |
| 36691 | 3, plate 20? |
| 36691 | 3. plate 17? |
| 36691 | 3. plate 4? |
| 36691 | 3. plate 6? |
| 36691 | 3.)? |
| 36691 | 30) Air balloons are formed of heavy materials, how will you account for their rising in the air? |
| 36691 | 30) Does smoke rise to a great height in the air, and if not, what prevents its so doing? |
| 36691 | 30) How would you illustrate this by the floating of a piece of paper on water? |
| 36691 | 30) Of what does smoke consist? |
| 36691 | 30) What influence does the air exert, on bodies less dense than itself, on those of equal, and on those of greater density? |
| 36691 | 30) What limits the height to which vapours rise? |
| 36691 | 31) How could this be exemplified by means of the air pump? |
| 36691 | 31) If the air could be entirely removed, what influence would this have upon the falling of heavy and light bodies? |
| 36691 | 32) In what does motion consist? |
| 36691 | 32) On what is the science of mechanics founded? |
| 36691 | 33) How is relative velocity distinguished? |
| 36691 | 33) How will a body move, if acted on by a single force? |
| 36691 | 33) Velocity is divided into absolute and relative; what is meant by absolute velocity? |
| 36691 | 33) What do we call that which produces motion? |
| 36691 | 33) What do we intend by the term velocity, and to what is it proportional? |
| 36691 | 33) What is the consequence of inertia, on a body at rest? |
| 36691 | 33) What is the reason of this? |
| 36691 | 33) What may we say of gravity, of cohesion, and of heat, as forces? |
| 36691 | 34) A ball struck by a bat gradually loses its motion; what causes produce this effect? |
| 36691 | 34) How do we measure the velocity of a body? |
| 36691 | 34) How is uniform motion produced? |
| 36691 | 34) The space? |
| 36691 | 34) The time? |
| 36691 | 34) What is uniform motion? |
| 36691 | 35) If gravity did not draw a projected body towards the earth, and the resistance of the air were removed, what would be the consequence? |
| 36691 | 35) In this case would not a great degree of force be required to produce a continued motion? |
| 36691 | 35) What is retarded motion? |
| 36691 | 36) What is accelerated motion? |
| 36691 | 37) By what reasoning is it proved that there is no difference? |
| 36691 | 37) What is the difference in the time of the ascent and descent, of a stone, or other body thrown upwards? |
| 36691 | 37) What number of feet will a heavy body descend in the first second of its fall, and at what rate will its velocity increase? |
| 36691 | 38) How do we ascertain the momentum? |
| 36691 | 38) How may a light body have a greater momentum than one which is heavier? |
| 36691 | 38) What is meant by the momentum of a body? |
| 36691 | 38) Why must we_ multiply_ the weight and velocity together in order to find the momentum? |
| 36691 | 39) What is meant by reaction, and what is the rule respecting it? |
| 36691 | 39) When we represent weight and velocity by numbers, what must we carefully observe? |
| 36691 | 39) Why is it particularly important, to understand the nature of momentum? |
| 36691 | 3? |
| 36691 | 3? |
| 36691 | 3? |
| 36691 | 3? |
| 36691 | 4, plate 13? |
| 36691 | 4, plate 14.? |
| 36691 | 4, plate 15? |
| 36691 | 4, plate 17? |
| 36691 | 4, plate 20? |
| 36691 | 4, plate 2? |
| 36691 | 4. plate 3? |
| 36691 | 4. plate 4? |
| 36691 | 4. plate 6? |
| 36691 | 40) How must their wings operate in enabling them to remain stationary, to rise, and to descend? |
| 36691 | 40) How will reaction assist us in explaining the flight of a bird? |
| 36691 | 40) What must be the nature of bodies, in which the whole motion is communicated from one to the other? |
| 36691 | 41) Do elastic bodies exhibit any indentation after a blow? |
| 36691 | 41) How does reaction operate in enabling us to swim, or to row a boat? |
| 36691 | 41) What constitutes elasticity? |
| 36691 | 41) What hard bodies are mentioned as elastic? |
| 36691 | 41) What name is given to air, and for what reason? |
| 36691 | 41) Why can not a man fly by the aid of wings? |
| 36691 | 42) All bodies are believed to be porous, what is said on this subject respecting gold? |
| 36691 | 42) Are those bodies always the most elastic, which are the least dense? |
| 36691 | 42) What do we conclude from elasticity respecting the contact of the particles of a body? |
| 36691 | 43) If you throw an elastic body against a wall, it will rebound; what is this occasioned by, and what is this return motion called? |
| 36691 | 43) What conjecture was made by sir Isaac Newton, respecting the porosity of bodies in general? |
| 36691 | 43) What do we mean by a perpendicular line? |
| 36691 | 43) What is an angle? |
| 36691 | 44) Figure 2 represents an angle of more than 90 degrees, what is that called? |
| 36691 | 44) Have the length of the lines which meet in a point, any thing to do with the measurement of an angle? |
| 36691 | 44) How must one line be situated on another to form two right angles? |
| 36691 | 44) Into what number of parts do we suppose a whole circle divided, and what are these parts called? |
| 36691 | 44) Upon what does the dimension of an angle depend? |
| 36691 | 44) What number of degrees, and what portion of a circle is there in a right angle? |
| 36691 | 44) What use can we make of compasses in measuring an angle? |
| 36691 | 44) When are two angles said to be equal? |
| 36691 | 45) How if it strikes obliquely? |
| 36691 | 45) If you make an elastic ball strike a body at right angles, how will it return? |
| 36691 | 46) If a body be struck by two equal forces in opposite directions, what will be the result? |
| 36691 | 47) How must a body be acted on, to produce motion in a curve, and what example is given? |
| 36691 | 47) How would the ball move, and how would you represent the direction of its motion? |
| 36691 | 47) How would the body move if so impelled? |
| 36691 | 48) What is intended by the axis of motion, and what are examples? |
| 36691 | 48) What is said of the axis of motion, whilst the body is revolving? |
| 36691 | 48) What is the middle point of a body called? |
| 36691 | 48) When a body revolves on an axis, do all its parts move with equal velocity? |
| 36691 | 48) When is a body said to revolve in a plane, and what is meant by the centre of motion? |
| 36691 | 49) If the centripetal force were destroyed, how would a body be carried by the centrifugal? |
| 36691 | 4? |
| 36691 | 4? |
| 36691 | 4? |
| 36691 | 5, and how does it magnify objects? |
| 36691 | 5, plate 13? |
| 36691 | 5, plate 15? |
| 36691 | 5, plate 19?) |
| 36691 | 5. plate 2. intended to represent? |
| 36691 | 5. plate 20? |
| 36691 | 5. plate 4? |
| 36691 | 5. plate 5? |
| 36691 | 50) What forces impede a body thrown horizontally? |
| 36691 | 51) The curve in which it falls, is not a part of a true circle: what is it denominated? |
| 36691 | 51) What is the_ centre of gravity_ defined to be? |
| 36691 | 51) What results from supporting, or not supporting the centre of gravity? |
| 36691 | 51) What would be the effect of taking off the upper portion of the load? |
| 36691 | 52) What is said of the centre of gravity of the human body, and how does a rope dancer preserve his equilibrium? |
| 36691 | 52) When will a carriage stand most firmly? |
| 36691 | 52) Why can not a sphere remain at rest on an inclined plane? |
| 36691 | 53) What influence will the density of the parts of a body exert upon its stability? |
| 36691 | 53) What is said respecting two bodies united by an inflexible rod? |
| 36691 | 53) What other circumstance materially affects the firmness of position? |
| 36691 | 53) When do we find the centres of gravity, and of magnitude in different points? |
| 36691 | 53) Why is it more easy to carry a weight in each hand, than in one only? |
| 36691 | 54) How many mechanical powers are there, and what are they named? |
| 36691 | 54) Upon what will the velocities depend? |
| 36691 | 54) What four particulars must be observed? |
| 36691 | 54) What is a mechanical power defined to be? |
| 36691 | 55) Were the fulcrum removed from the middle of the beam what would result? |
| 36691 | 55) What do we mean by the arms of a lever? |
| 36691 | 55) What is a lever? |
| 36691 | 55) When and why do the scales balance each other, and where is their centre of gravity? |
| 36691 | 55) Why would they not balance with unequal weights? |
| 36691 | 56) How may a pair of scales be false, and yet appear to be true? |
| 36691 | 56) If the fulcrum be removed from the centre of gravity, how may the equilibrium be restored? |
| 36691 | 56) What proportion must the weights bear to the lengths of the arms? |
| 36691 | 57) On what principle do we weigh with a pair of steelyards, and what will be the difference in the motion of the extremities of such a lever? |
| 36691 | 58) How many kinds are there; and in the first how is the fulcrum situated? |
| 36691 | 58) What line is described by the ends of a lever? |
| 36691 | 58) When may the fulcrum be so situated that this lever is not a mechanical power, and why? |
| 36691 | 59) How may two horses of unequal strength, be advantageously coupled in a carriage? |
| 36691 | 59) In what instruments are two such levers combined? |
| 36691 | 5? |
| 36691 | 5? |
| 36691 | 6, plate 13? |
| 36691 | 6, plate 14? |
| 36691 | 6, plate 15? |
| 36691 | 6, plate 19? |
| 36691 | 6, plate 19? |
| 36691 | 60) In what instance do we use this? |
| 36691 | 60) What is said respecting a door? |
| 36691 | 61) What are the conditions of equilibrium in every lever? |
| 36691 | 61) What remarks are made on its employment in the limbs of animals? |
| 36691 | 62) Of what use is the fixed pulley? |
| 36691 | 62) What is meant by a fixed pulley and why is not power gained by its employment? |
| 36691 | 64) How do we estimate the power gained by a system of pulleys? |
| 36691 | 64) If to gain power we must lose time, what advantage do we derive from the mechanical powers? |
| 36691 | 64) What is a fundamental law as respects power and time? |
| 36691 | 64) What name is given to two or more pulleys connected by one string? |
| 36691 | 65) How could we increase the power in this instrument? |
| 36691 | 65) How does the wheel operate in increasing power? |
| 36691 | 65) How is this compared with the lever? |
| 36691 | 66) How does its power increase? |
| 36691 | 66) In what proportion does it gain power? |
| 36691 | 66) To what is the wedge compared? |
| 36691 | 66) What other forces besides the power of men, do we employ to move machines? |
| 36691 | 66) What will serve as an example of an inclined plane? |
| 36691 | 67) How can you compare the screw with an inclined plane? |
| 36691 | 67) The screw has two essential parts; what are they? |
| 36691 | 67) What common instruments act upon the principle of the inclined plane, or the wedge? |
| 36691 | 67) What other instrument is used to turn the screw? |
| 36691 | 67) Why does a knife cut best when drawn across? |
| 36691 | 67) Why is it rather a compound than a simple power? |
| 36691 | 68) By what two means may the power of the screw be increased? |
| 36691 | 68) How do we estimate the power gained by the screw? |
| 36691 | 68) Is the lever always attached to the nut, as in the figure? |
| 36691 | 68) What is said respecting the composition of all machines, and for what must allowance always be made in estimating their power? |
| 36691 | 69) For what purpose are wheels often used? |
| 36691 | 69) Friction is of two kinds, what are they? |
| 36691 | 69) How may friction be diminished? |
| 36691 | 69) What is meant by friction, and what causes it? |
| 36691 | 69) When is the friction of a carriage wheel changed from the rolling to the rubbing friction? |
| 36691 | 6? |
| 36691 | 6? |
| 36691 | 7, plate 13? |
| 36691 | 7, plate 14)? |
| 36691 | 7, plate 18? |
| 36691 | 7, plate 19? |
| 36691 | 7, plate 3, intended to illustrate? |
| 36691 | 7. plate 4, and in what proportion does this lever gain power? |
| 36691 | 70) Under what circumstances must a body be placed, in order to move without impediment? |
| 36691 | 70) What is a medium, and in what proportion does it diminish motion? |
| 36691 | 71) Had the earth received a projectile force only, at the time of its creation, how would it have moved? |
| 36691 | 71) What revolution does the earth perform in a year? |
| 36691 | 72) Describe the operation of the forces of projection and of gravity as illustrated by the parallelograms in the figure? |
| 36691 | 72) How does the force of gravity change the diagonal into a curved line? |
| 36691 | 72) What have you been taught respecting a body acted upon by two forces at right angles with each other? |
| 36691 | 72) What is the law respecting the time required for motion in the diagonal? |
| 36691 | 73) Does the earth revolve in a circular orbit? |
| 36691 | 73) How must you apply it to this purpose? |
| 36691 | 73) How will what you have learned respecting motion in a curve, apply to the earth''s motion? |
| 36691 | 73) If these two forces did not exactly balance each other, what would result? |
| 36691 | 73) In what form are you directed to cut a piece of card to aid in illustrating the two forces acting upon the earth? |
| 36691 | 73) What portion of a year is represented by the three diagonals in the figure? |
| 36691 | 73) What results from its motion in an ellipsis? |
| 36691 | 74) What effect will the accelerated motion then produce? |
| 36691 | 74) When it has arrived at E, what angle will be formed by the lines representing the two forces? |
| 36691 | 75) What is meant by_ perihelion_, and by_ aphelion_? |
| 36691 | 75) What is the consequence as regards the regularity of the earth''s motion? |
| 36691 | 75) What is the difference of the distance of the earth from the sun, in these two points? |
| 36691 | 75) What is the form of the earth''s orbit, and what circumstances produce this form? |
| 36691 | 76) Are the summer and winter, half years, of the same length; what is their difference, and what is the cause? |
| 36691 | 76) At what season of the year is it nearest to, and at what furthest from the sun? |
| 36691 | 76) Has it any influence on the sun''s apparent size? |
| 36691 | 76) What are the planets? |
| 36691 | 76) What is the mean distance of the earth from the sun? |
| 36691 | 76) Why is but little effect produced, as regards temperature, by the change of distance? |
| 36691 | 77) What circumstances render it probable that they are habitable globes? |
| 36691 | 77) What discoveries have been made in the moon? |
| 36691 | 77) What is believed respecting the fixed stars? |
| 36691 | 77) What prevents our seeing the planets, if there are any, which revolve round the fixed stars? |
| 36691 | 77) What prevents our seeing the stars and planets in the day- time? |
| 36691 | 78) How does this occasion night and day? |
| 36691 | 78) In what direction does the earth turn upon its axis, and what apparent motion of the sun, moon, and stars is thereby produced? |
| 36691 | 78) What is the imaginary line called, round which they revolve? |
| 36691 | 78) What other motions have the earth and planets, besides that in their orbits? |
| 36691 | 79) What must be the appearance of the earth to an inhabitant of one of the planets? |
| 36691 | 79) What the appearance of the earth to an inhabitant of the moon? |
| 36691 | 79) What the appearance of the sun to the inhabitants of planets in other systems? |
| 36691 | 7? |
| 36691 | 8, plate 13, and also how, and for what it is used? |
| 36691 | 80) By what reasoning do you prove that the sun contains a greater quantity of matter than any other body in the system? |
| 36691 | 80) Into what two classes are the planets divided, and how are they distinguished? |
| 36691 | 81) Does this apply to any power excepting gravitation? |
| 36691 | 81) How is it that a secondary planet revolves round its primary, and is not drawn off by the sun? |
| 36691 | 81) How is the rule upon this subject expressed? |
| 36691 | 81) Were a planet removed to double its former distance from the sun, what would be the effect upon its attractive force? |
| 36691 | 81) What is meant by the square of a number, and what examples can you give? |
| 36691 | 81) What then would be the effect of removing it to three, or four times its former distance? |
| 36691 | 81) What two circumstances govern the force with which bodies attract each other? |
| 36691 | 81) Why would it be reduced to one- fourth? |
| 36691 | 82) By what law in mechanics is this explained? |
| 36691 | 82) What effect have the planets upon the sun, and what is said of the common centre of gravity of the system? |
| 36691 | 82) What is said respecting the revolution of the moon, and of the earth, round a common centre of gravity? |
| 36691 | 82) What motions then has the earth, and are these remarks confined to it alone? |
| 36691 | 83) How may you observe the motion of a planet, by means of a fixed star? |
| 36691 | 83) What are we told respecting Mercury? |
| 36691 | 83) What other motion has the sun, and how is it proved? |
| 36691 | 83) Why are the orbits represented as circular? |
| 36691 | 84) What four small planets follow next? |
| 36691 | 84) What is said of the Earth? |
| 36691 | 84) What of Mars? |
| 36691 | 84) What respecting Venus? |
| 36691 | 84) When does Venus become a morning, and when an evening star? |
| 36691 | 85) In what proportion will the light and heat at Saturn be diminished, and why? |
| 36691 | 85) What is said of Jupiter? |
| 36691 | 85) What of Herschel? |
| 36691 | 85) What of Saturn? |
| 36691 | 85) Why do we conclude that the moons of Saturn afford less light than ours? |
| 36691 | 86) How are the twelve constellations, or signs, called the zodiac, situated? |
| 36691 | 86) What causes the apparent change of the sun''s place? |
| 36691 | 86) What do the comets resemble, and what is remarkable in their orbits? |
| 36691 | 86) What is a constellation? |
| 36691 | 86) What is meant by the sun being in a sign? |
| 36691 | 86) What is said of the number of comets? |
| 36691 | 87) The stars appear of different magnitudes, by what may this be caused? |
| 36691 | 87) We are not sensible of the motion of the earth; what fact is mentioned to illustrate this point? |
| 36691 | 87) What does this teach us? |
| 36691 | 88) If we do not feel the motion of the earth, how may we be convinced of its reality? |
| 36691 | 88) Would the slowness, or the rapidity of the motion, if steady, produce any sensible difference? |
| 36691 | 89) Were we to deny the motion of the earth upon its axis, what must we admit respecting the heavenly bodies? |
| 36691 | 89) What distance does the earth travel in a minute, in its revolution round the sun? |
| 36691 | 89) What distance is an inhabitant on the equator carried in a minute by the diurnal motion of the earth? |
| 36691 | 89) What do we mean by the Copernican system, and what is said respecting Copernicus and Newton? |
| 36691 | 89) What was formerly supposed respecting the motion of all the heavenly bodies? |
| 36691 | 89) Why is not the velocity every where equally great? |
| 36691 | 9, plate 13? |
| 36691 | 90) What circumstance is said to have given rise to the speculations of Newton, on the subject of gravitation? |
| 36691 | 92) Against what mistake must you guard respecting this line? |
| 36691 | 92) There are two hemispheres; how are they named and distinguished? |
| 36691 | 92) What are the circles near the poles called? |
| 36691 | 92) What circle is in part represented by the line L K? |
| 36691 | 92) What do the lines I K, and L M, represent? |
| 36691 | 92) What is meant by a plane, and how could one be represented? |
| 36691 | 92) What is meant by the equator, and how is it situated? |
| 36691 | 93) Extending this plane to the fixed stars, what circle would it form, and among what particular stars would it be found? |
| 36691 | 93) How do meridian lines extend, and what is meant by the meridian of a place? |
| 36691 | 93) The ecliptic does not properly belong to the earth, for what purpose then is it described on the terrestrial globe? |
| 36691 | 93) What does the obliquity of the ecliptic to the equator serve to show? |
| 36691 | 93) What is meant by the term zone; and are the frigid zones properly so called? |
| 36691 | 93) What is said of the meridian to which the sun is opposite, and where is it then midnight? |
| 36691 | 93) What two zones are there between the torrid, and the two frigid zones? |
| 36691 | 93) Where are the frigid zones situated? |
| 36691 | 93) Within what limits do you find the torrid zone? |
| 36691 | 94) How are degrees of latitude measured, and to what number do they extend? |
| 36691 | 94) How are greater and lesser circles distinguished? |
| 36691 | 94) How many degrees are there between the equator and the poles? |
| 36691 | 94) Into what parts, besides degrees, is the ecliptic divided? |
| 36691 | 94) On what circles are degrees of longitude measured, and to what number do they extend? |
| 36691 | 94) What hour is it then, at places exactly half way between these meridians? |
| 36691 | 94) What is a parallel of latitude? |
| 36691 | 94) What is the diameter, and what the circumference of a circle, and what proportion do they bear to each other? |
| 36691 | 94) What part of a circle is a degree, and how are these further divided? |
| 36691 | 94) What part of a circle is a meridian? |
| 36691 | 95) Degrees of longitude vary in length; what is the cause of this? |
| 36691 | 95) What is the cause of this form being given to the earth? |
| 36691 | 95) What is the length of a degree of latitude, and why do not these vary? |
| 36691 | 96) A body situated at the poles, is attracted more forcibly than if placed at the equator, what is the reason? |
| 36691 | 96) What would have been a consequence of the centrifugal force, had the earth been a perfect sphere? |
| 36691 | 97) What effect would be produced upon the gravity of a body, were it placed beneath the surface of the earth, and what supposing it at its centre? |
| 36691 | 97) What two circumstances combine, to lessen the weight of a body on the equator? |
| 36691 | 97) Why could not this be proved by weighing a body at the poles, and at the equator? |
| 36691 | 98) To what use has this property of the pendulum been applied? |
| 36691 | 98) Two pendulums of the same length, will not, in different latitudes, perform their vibrations in equal times, what is the cause of this? |
| 36691 | 98) What causes it to vibrate? |
| 36691 | 98) What is a pendulum? |
| 36691 | 98) Why are not its vibrations perpetual? |
| 36691 | 99) How much is the axis of the earth inclined, and with what line does it form this angle? |
| 36691 | 99) In the revolution of the earth round the sun, what is the position of its axis? |
| 36691 | 99) What change must be made in pendulums situated at the equator and at the poles, to render their vibrations equal? |
| 36691 | 99) What do the vibrations of a pendulum resemble, and why will it vibrate more rapidly if shortened? |
| 36691 | 9? |
| 36691 | A lens, then, answers the purpose equally well, either for magnifying or diminishing objects? |
| 36691 | Am I not right, Mrs. B.? |
| 36691 | And pray, Mrs. B., when my brothers play at_ see- saw_, is not the plank on which they ride, a kind of lever? |
| 36691 | And pray, at what rate do we move? |
| 36691 | And why is it not the case with the shadows of terrestrial objects? |
| 36691 | B._ And now that I pour more water into the bason, why does the paper rise? |
| 36691 | B._ Bodies thus projected, you observe, describe a curve- line in their descent; can you account for that? |
| 36691 | B._ Caroline, what would be the effect, were the body supported in any other single point? |
| 36691 | B._ Did it ever occur to you as extraordinary, that you never beheld your own face? |
| 36691 | B._ Do you not know, that, in the course of time, all the water which sinks into the ground, rises out of it again? |
| 36691 | B._ Do you understand what is meant by the level, or equilibrium of fluids? |
| 36691 | B._ Have we not a similar proof of the earth''s motion, in the apparent motion of the sun and stars? |
| 36691 | B._ Is nature less pleasing for being coloured, as well as illumined, by the rays of light? |
| 36691 | B._ Now tell me, do you think that your brother could raise you as easily without the aid of a lever? |
| 36691 | B._ Suppose there were but one body existing in universal space, what would its weight be? |
| 36691 | B._ Very well; and what number of degrees are there from the equator to one of the poles? |
| 36691 | B._ Very well; and where is the centre of gravity of this pair of scales? |
| 36691 | B._ Well, my dear, pray what is this weighty objection? |
| 36691 | B._ What is that which makes the gilt buttons on your brothers coat shine? |
| 36691 | B._ What will you say, my dear, when I tell you, that these two forces are not, in fact, so proportioned as to produce circular motion in the earth? |
| 36691 | B._ Why should you think so? |
| 36691 | B._ Would it not have been better to have answered with a moment''s reflection, Caroline? |
| 36691 | B._ You mean, I suppose, in other words to inquire whether two lines which are perpendicular to the earth, are parallel to each other? |
| 36691 | Before the time of Newton, was not the earth supposed to be in the centre of the system, and the sun, moon, and stars to revolve round it? |
| 36691 | But I do not see how this accounts for the motion of the secondary, round the primary planets, in preference to moving round the sun? |
| 36691 | But I do not understand what makes the planets shine? |
| 36691 | But I do not understand why the longest arm of the lever should not be in equilibrium with the other? |
| 36691 | But does that chair, at the further end of the room, form an image on my retina, much smaller than this which is close to me? |
| 36691 | But in the earth''s revolution round the sun, every part must move with equal velocity? |
| 36691 | But is not height also a dimension of extension? |
| 36691 | But is the air a body of the same nature as other bodies? |
| 36691 | But of what use then is a fixed pulley in mechanics? |
| 36691 | But pray what is it that produces the elasticity of bodies? |
| 36691 | But this microscope can be used only for transparent objects; as the light must pass through them, to form the image on the wall? |
| 36691 | But what is a sonorous body, Mrs. B.? |
| 36691 | But what sort of weather must those people have, who live on the spot, where these winds meet and interfere? |
| 36691 | But why is this defect remedied by bringing the object nearer to the eye, as we find to be the case with short- sighted people? |
| 36691 | But would the same effect be produced, if the spout and the pot, were of equal dimensions? |
| 36691 | But, Mrs. B., if attraction is a property essential to matter, weight must be so likewise; for how can one exist without the other? |
| 36691 | But, Mrs. B., if the air is a real body, is it not also subjected to the laws of gravity? |
| 36691 | But, Mrs. B., what is the reason that the green leaves, are of a brighter blue than the rose? |
| 36691 | But, Mrs. B., why does not the sun produce tides, as well as the moon; for its attraction is greater than that of the moon? |
| 36691 | But, pray, do they see the earth under all the changes, which the moon exhibits to us? |
| 36691 | Can you form any idea what this loss will be? |
| 36691 | Can you tell me now how much more light we enjoy than Saturn? |
| 36691 | Can you tell me now, how the earth will move? |
| 36691 | Can you tell me, Caroline, how many miles you will have travelled, if your velocity is three miles an hour, and you travel six hours? |
| 36691 | Can you tell me, Caroline, why objects at a distance, appear smaller than they really are? |
| 36691 | Caroline, place yourself in the direction of the reflected rays, and tell me whether you do not see Emily''s image in the glass? |
| 36691 | Did you ever notice the swingle- tree of a carriage to which the horses are attached when drawing? |
| 36691 | Did you ever observe that a lever describes the arc of a circle in its motion? |
| 36691 | Did you see, Emily, the feather appeared as heavy as the guinea? |
| 36691 | Do not rivers also, derive their source from springs? |
| 36691 | Do not the extremities of the vanes of a windmill move over a much greater space, than the parts nearest the axis of motion? |
| 36691 | Do we not every day see heavy bodies fall quickly, and light bodies slowly? |
| 36691 | Do you know how that is contrived? |
| 36691 | Do you perceive the water rising in this small glass tube, above its level in the goblet of water, into which I have put one end of it? |
| 36691 | Do you recollect those beautiful lines of Milton? |
| 36691 | Do you see the flower painted at the bottom of the inside of this tea- cup? |
| 36691 | Do you understand this, Caroline? |
| 36691 | Do you understand this? |
| 36691 | Do you understand this? |
| 36691 | Do you understand what an angle is? |
| 36691 | Does not this prove that I see the objects themselves? |
| 36691 | Does not this table weigh heavier than this book; and, if one thing weighs heavier than another, must there not be such a thing as weight? |
| 36691 | Does that house appear to you much smaller, than when you are close to it? |
| 36691 | Emily, do you recollect the names of the general properties of bodies? |
| 36691 | Have you ever seen your brother move a snow- ball by means of a strong stick, when it became too heavy for him to move without assistance? |
| 36691 | Have you never observed a black dress, to be warmer than a white one? |
| 36691 | How may this be effected? |
| 36691 | I should have thought it would have been just the contrary, for land is certainly a more dense body than water? |
| 36691 | I thought that it was impossible to produce perpetual motion? |
| 36691 | I told her that it required no support; she then inquired why it did not fall as every thing else did? |
| 36691 | I will show you another instance, of the weight of the atmosphere, which I think will please you: you know what a barometer is? |
| 36691 | I wonder how the idea of gravitation could first have occurred to sir Isaac Newton? |
| 36691 | If you weigh a piece of gold, in a glass of water, will not the gold displace just as much water, as is equal to its own bulk? |
| 36691 | Is not a fluid level when its surface is smooth and flat, as is the case with all fluids, when in a state of rest? |
| 36691 | Is not that a strong argument against your theory? |
| 36691 | Is the firm adhesion of the two plates merely owing to the attraction of cohesion? |
| 36691 | Let us now fix it on the air pump, and exhaust the air from underneath it-- you will not be alarmed if you hear a noise? |
| 36691 | Let us suppose a body to be struck by two equal forces in opposite directions, how will it move? |
| 36691 | Look at that large sheet of water; can you tell why the sun appears to shine on one part of it only? |
| 36691 | Look at this bason of water; why does the piece of paper which I throw into it float on the surface? |
| 36691 | Now Emily, it is your turn; what is_ accelerated motion_? |
| 36691 | Now Emily, you may tell me exactly how many degrees are contained in a meridian? |
| 36691 | Now I will lay it on the surface of the water; but there it sinks a little-- what is the reason of that, Mrs. B.? |
| 36691 | Now can you tell me what is_ retarded motion_? |
| 36691 | Now can you tell me whether the air is heavier, in wet, or in dry weather? |
| 36691 | Now that I have removed the mirror out of the influence of the sun''s rays, if I place a burning taper in the focus, how will its light be reflected? |
| 36691 | Now, Emily, let me hear if you can explain how the gravity of bodies is modified by the effect of the air? |
| 36691 | Now, Mrs. B., will you let me fill the tube, by pouring water into the goblet? |
| 36691 | Now, can you tell me in what direction the three rays, A B, C D, E F, will be reflected? |
| 36691 | Now, if the air were destitute of weight, how could it support other bodies, or retard their fall? |
| 36691 | Suppose the two forces are unequal, but do not act on the ball in the direction of a right angle, but in that of an acute angle, what will result? |
| 36691 | Tell me, Caroline, what do you understand by the word motion? |
| 36691 | That part of the sheet of water, over which the trees cast a shadow, by what light do you see it? |
| 36691 | The power of the screw, complicated as it appears, is referable to one of the most simple of the mechanical powers; which of them do you think it is? |
| 36691 | The spot of light is extremely brilliant, but the paper does not burn? |
| 36691 | Those who live to the north of it, experience a north wind; those to the south, a south wind:--do you comprehend this? |
| 36691 | To the inhabitants of the other planets, then, we must appear as a little star? |
| 36691 | Well, Caroline, have you ascertained what kind of pump you have in your garden? |
| 36691 | Well, you will perhaps be surprised to hear that the gold will weigh less in water, than it did out of it? |
| 36691 | What is it that occasions the fall of this book, when I no longer support it? |
| 36691 | What is the reason that the great quantity of rain which falls upon the earth and sinks into it, does not, in the course of time, injure its solidity? |
| 36691 | What reason is there to regret, that she does not wear it when she is invisible? |
| 36691 | What substance do you think would be best calculated to answer this end? |
| 36691 | What then ensues? |
| 36691 | What, Mrs. B., are we all as black as negroes in the dark? |
| 36691 | Why then should these enormous globes daily traverse such a prodigious space, merely to prevent the necessity of our earth''s revolving on its axis? |
| 36691 | Will the wagon now be upset? |
| 36691 | With what do you choose to make the experiment? |
| 36691 | Would it not be clearer, if the opening in the shutter were enlarged, so as to admit more light? |
| 36691 | Would you call wood, and chalk, light or heavy bodies? |
| 36691 | You both, I suppose, have seen a pulley? |
| 36691 | You conceive that a body having length, breadth and depth, can not be without form, either symmetrical or irregular? |
| 36691 | You know the old saying, that a pound of feathers, is as heavy as a pound of lead? |
| 36691 | You recollect that law in mechanics? |
| 36691 | You see none of the balls except the last, appear to move, this flies off as far as the first ball fell; can you explain this? |
| 36691 | _ Caroline._ And from whence arises this difference, between elastic, and non- elastic fluids? |
| 36691 | _ Caroline._ And from whence proceeds the pressure of fluids upwards? |
| 36691 | _ Caroline._ And of what nature are the other two kinds of levers? |
| 36691 | _ Caroline._ And should not the sun appear smaller in summer, when it is so much further from us? |
| 36691 | _ Caroline._ And what is this singular circumstance, which seems to disturb the laws of nature? |
| 36691 | _ Caroline._ And, pray, why is the sky of a blue colour? |
| 36691 | _ Caroline._ Are not comets, in some respects similar to planets? |
| 36691 | _ Caroline._ Are you sure that it is not the glass, which covers the bell, that prevents our hearing it? |
| 36691 | _ Caroline._ As the three rays are parallel, why are they not all perpendicular to the mirror? |
| 36691 | _ Caroline._ But a top generally has a motion forwards besides its spinning motion; and then no point within it can be at rest? |
| 36691 | _ Caroline._ But do not the primary planets, sometimes eclipse the sun from each other, as they pass round in their orbits? |
| 36691 | _ Caroline._ But does not the attraction of the denser medium affect the ray before it touches it? |
| 36691 | _ Caroline._ But how are we to judge of the quantity of matter contained in a certain bulk? |
| 36691 | _ Caroline._ But if a machine is made of polished metal, as a watch for instance, the friction must be very trifling? |
| 36691 | _ Caroline._ But if it were possible to relieve me from the weight of the atmosphere, should I not feel more light and agile? |
| 36691 | _ Caroline._ But if we see all terrestrial objects by reflected light,( as we do the moon,) why do they appear so bright and luminous? |
| 36691 | _ Caroline._ But is it not very easy to find both the latitude and longitude of any place by a map or globe? |
| 36691 | _ Caroline._ But red and green mixed together, do not produce yellow? |
| 36691 | _ Caroline._ But since an image must be formed on the retina of each of our eyes, why do we not see objects double? |
| 36691 | _ Caroline._ But surely there can be no pores in ivory and metals, Mrs. B.; how then can they be susceptible of compression? |
| 36691 | _ Caroline._ But there is a spring in our grounds, which more frequently flows in dry, than in wet weather; how is that to be accounted for? |
| 36691 | _ Caroline._ But unless you can see the sun, how can you take its altitude? |
| 36691 | _ Caroline._ But, Mrs. B., if we see only the image of objects, why do we not see them reversed, as you showed us they were, in the camera obscura? |
| 36691 | _ Caroline._ But, Mrs. B., the grass is green, and the flowers are coloured, whether in the dark, or exposed to the light? |
| 36691 | _ Caroline._ But, if the sun really shines on every part of that sheet of water, why does not every part of it, reflect rays to my eyes? |
| 36691 | _ Caroline._ By friction, do you mean one part of the machine rubbing against another part contiguous to it? |
| 36691 | _ Caroline._ Do not the vanes of a windmill represent a wheel, Mrs. B.? |
| 36691 | _ Caroline._ Do you mean to say, that the action of the body which strikes, is returned with equal force by the body which receives the blow? |
| 36691 | _ Caroline._ Does attraction act on water more powerfully than on land? |
| 36691 | _ Caroline._ Has the experiment been made in these different situations? |
| 36691 | _ Caroline._ How is that possible? |
| 36691 | _ Caroline._ I can not conceive how these colours, mixed together, can become white? |
| 36691 | _ Caroline._ I have heard so, but do you not think such an opinion too great a stretch of the imagination? |
| 36691 | _ Caroline._ I should then imagine that it would fall, quicker than it rose? |
| 36691 | _ Caroline._ I thought that perpendicularly meant either directly upwards or downwards? |
| 36691 | _ Caroline._ I understand that perfectly; but what is the meaning of the other point B? |
| 36691 | _ Caroline._ I understand that very well; and is not this the reason that oars appear bent in the water? |
| 36691 | _ Caroline._ In drawing a view from nature, it seems that we do not copy the real objects, but the image they form on the retina of our eyes? |
| 36691 | _ Caroline._ In that case we can not see her, for she must rise in the day time? |
| 36691 | _ Caroline._ In the torrid zone, then, I hope you will grant that the moon is immediately over, or opposite the spots where it is high water? |
| 36691 | _ Caroline._ Is it for this reason that wheels are greased, and the locks and hinges of doors oiled? |
| 36691 | _ Caroline._ Is light then a substance composed of particles, like other bodies? |
| 36691 | _ Caroline._ Is not sound produced by solid bodies? |
| 36691 | _ Caroline._ My head then moves faster than my feet; and upon the summit of a mountain, we are carried round quicker than in a valley? |
| 36691 | _ Caroline._ On what then can we rely, for do we not receive all our ideas through the medium of our senses? |
| 36691 | _ Caroline._ Pray by what means is this receiver exhausted of its air? |
| 36691 | _ Caroline._ Pray what are the planets? |
| 36691 | _ Caroline._ Pray what is the distinction between a fluid and a liquid? |
| 36691 | _ Caroline._ Pray, Mrs. B., do the two scales of a balance hang parallel to each other? |
| 36691 | _ Caroline._ Pray, Mrs. B., is not the leather, which covers the opening, in the lower board of a pair of bellows, a kind of valve? |
| 36691 | _ Caroline._ Pray, Mrs. B., is not the thermometer constructed on the same principles as the barometer? |
| 36691 | _ Caroline._ Pray, what is the meaning of focus? |
| 36691 | _ Caroline._ That is very clear, but supposing the two forces to be unequal, that the force X, for instance, be twice as great as the force Y? |
| 36691 | _ Caroline._ The axle of a grindstone, is then the axis of its motion; but is the centre of motion always in the middle of a body? |
| 36691 | _ Caroline._ The weight and the fulcrum have here changed places; and what advantage is gained by this kind of lever? |
| 36691 | _ Caroline._ Then the larger the wheel, in proportion to the axle, the greater must be its effect? |
| 36691 | _ Caroline._ Then the more distant planets, move much slower in their orbits; for their projectile force must be proportioned to that of attraction? |
| 36691 | _ Caroline._ Then why does it not, like all other bodies, fall to the ground? |
| 36691 | _ Caroline._ There must be a great number of eclipses in the distant planets, which have so many moons? |
| 36691 | _ Caroline._ This explanation of the monsoons is very curious; but what does their breaking up mean? |
| 36691 | _ Caroline._ This figure renders it very clear: then two bodies can not fall to the earth in parallel lines? |
| 36691 | _ Caroline._ This is extremely curious; but why should brown paper, absorb more rays, than white paper? |
| 36691 | _ Caroline._ This rose: look at it, Mrs. B., and tell me whether it is possible to deprive it of its beautiful colour? |
| 36691 | _ Caroline._ What colour do you suppose them to be, then, in the dark? |
| 36691 | _ Caroline._ What is the reason that articles which are blue, often appear green, by candle- light? |
| 36691 | _ Caroline._ What, the pendulum of a clock? |
| 36691 | _ Caroline._ When a stick is poised on the tip of the finger, is it not by supporting its centre of gravity? |
| 36691 | _ Caroline._ Why do you observe the temperature of the room, in estimating the weight of the air? |
| 36691 | _ Caroline._ Why do you wet the bladder first? |
| 36691 | _ Caroline._ Why not quite as high? |
| 36691 | _ Caroline._ Why then does one side of the house appear to be in sunshine, and the other in shade? |
| 36691 | _ Caroline._ Why then does the air feel so heavy, in bad weather? |
| 36691 | _ Caroline._ Why then should not mirrors be made simply of mercury? |
| 36691 | _ Caroline._ You do not mean to say, that we see only the representation of the object, which is painted on the retina, and not the object itself? |
| 36691 | _ Emily._ And are not fountains, of the nature of springs? |
| 36691 | _ Emily._ And at what height, will the weight of the atmosphere sustain the mercury? |
| 36691 | _ Emily._ And for what reason? |
| 36691 | _ Emily._ And how do you ascertain the specific gravity of fluids? |
| 36691 | _ Emily._ And how do you know which colours bodies have a tendency to reflect, or which to absorb? |
| 36691 | _ Emily._ And how much longer is the sidereal, than the solar year? |
| 36691 | _ Emily._ And is it thus, that the picture of objects, is painted on the retina of the eye? |
| 36691 | _ Emily._ And is light, in its reflection, governed by the same laws, as solid, elastic bodies? |
| 36691 | _ Emily._ And is no inconvenience experienced, from the thinness of the air, in such elevated situations? |
| 36691 | _ Emily._ And is there any considerable difference between solar time, and true time? |
| 36691 | _ Emily._ And may we not say that gravity is the force which occasions the fall of bodies? |
| 36691 | _ Emily._ And of what length is a degree of latitude? |
| 36691 | _ Emily._ And pray, have the other planets the same vicissitudes of seasons, as the earth? |
| 36691 | _ Emily._ And when shall we learn them? |
| 36691 | _ Emily._ And yet a pair of scales, hanging perpendicular to the earth, appear parallel? |
| 36691 | _ Emily._ Are not the eclipses of the sun produced by the moon passing between the sun and the earth? |
| 36691 | _ Emily._ Are the trumpets used as musical instruments, also constructed on this principle? |
| 36691 | _ Emily._ But are there not some bodies which have exactly the same specific gravity as water? |
| 36691 | _ Emily._ But can we not ascertain the weight of a small quantity of air? |
| 36691 | _ Emily._ But do not the rays which are projected in different directions, and cross each other, interfere, and impede each other''s course? |
| 36691 | _ Emily._ But does not every part of the earth move with the same velocity? |
| 36691 | _ Emily._ But each set of these irregular vibrations, if repeated alone, and at equal intervals, would, I suppose, produce a musical tone? |
| 36691 | _ Emily._ But have we not just seen the ray of light, in its passage from the sun to the mirror, and its reflections? |
| 36691 | _ Emily._ But how do they contrive to regulate their time in the equatorial and polar regions? |
| 36691 | _ Emily._ But how does a prism separate these coloured rays? |
| 36691 | _ Emily._ But if the air moves backwards, as well as forwards, how can its motion extend so as to convey sound to a distance? |
| 36691 | _ Emily._ But if the tube through which the water rises be smooth, can there be any friction? |
| 36691 | _ Emily._ But is that side of the house yonder, which appears to be in shadow, really illuminated by the sun, and its rays reflected another way? |
| 36691 | _ Emily._ But may it not be objected to pulleys, that a longer time is required to raise a weight by their aid, than without it? |
| 36691 | _ Emily._ But since this watery vapour is lighter than the air, why does it not continue to rise; and why does it unite again, to form clouds? |
| 36691 | _ Emily._ But the quantity must really be diminished? |
| 36691 | _ Emily._ But they may see our sun as we do theirs, in appearance a fixed star? |
| 36691 | _ Emily._ But were you to penetrate deep into the earth, would gravity increase as you approached the centre? |
| 36691 | _ Emily._ Can a mirror form more than one focus, by reflecting rays? |
| 36691 | _ Emily._ Can it be the attraction of the earth? |
| 36691 | _ Emily._ Can not the power of the screw be increased also, by lengthening the lever attached to the nut? |
| 36691 | _ Emily._ Does not the air pump, which you used in the experiments, on pneumatics, operate upon the same principles as the sucking pump? |
| 36691 | _ Emily._ How can the angles be equal, while the lines which compose them are of unequal length? |
| 36691 | _ Emily._ How is it that the rain water does not continue to descend by its gravity, instead of collecting together, and forming springs? |
| 36691 | _ Emily._ I have heard much of the violent tempests, occasioned by the breaking up of the monsoons; are not they also regular trade- winds? |
| 36691 | _ Emily._ I think I can trace a consequence from these different situations of the earth; are not they the cause of summer and winter? |
| 36691 | _ Emily._ I thought that the earth performed one complete revolution in its orbit, every year; what is the reason of this variation? |
| 36691 | _ Emily._ I thought the sun had no motion? |
| 36691 | _ Emily._ If so, how is it possible to prove that they are endowed with this power? |
| 36691 | _ Emily._ If the ecliptic relates only to the heavens, why is it described upon the terrestrial globe? |
| 36691 | _ Emily._ If the fixed stars are suns, with planets revolving round them, why should we not see those planets as well as their suns? |
| 36691 | _ Emily._ If you throw a stone perpendicularly upwards, is it not the same length of time in ascending, that it is in descending? |
| 36691 | _ Emily._ If, then, we are driven by one power, and drawn by the other to this centre of destruction, how is it possible for us to escape? |
| 36691 | _ Emily._ In what direction does the water attract the ray? |
| 36691 | _ Emily._ Is it not because the vicinity of the primary planets, renders their attraction stronger than that of the sun? |
| 36691 | _ Emily._ Is it not in consequence of refraction, that the glasses in common spectacles, magnify objects seen through them? |
| 36691 | _ Emily._ Is it not similar to the syringe, or squirt, with which you first draw in, and then force out water? |
| 36691 | _ Emily._ Is it not surprising that nature should have furnished us with such disadvantageous levers? |
| 36691 | _ Emily._ Is there then no difference between rain water, and spring water? |
| 36691 | _ Emily._ It would then be much more difficult to work a machine under water than in the air? |
| 36691 | _ Emily._ Oh yes; I see it slowly creeping up the tube, but now it is stationary: will it rise no higher? |
| 36691 | _ Emily._ Pray what is the reason that the tide is three- quarters of an hour later every day? |
| 36691 | _ Emily._ Pray, Mrs. B., by what rule do you estimate the power of the screw? |
| 36691 | _ Emily._ Pray, Mrs. B., can not the sun''s rays be collected to a focus by a lens, in the same manner as they are by a concave mirror? |
| 36691 | _ Emily._ Pray, Mrs. B., what are the constellations? |
| 36691 | _ Emily._ Pray, do not glass windows, refract the light? |
| 36691 | _ Emily._ Pray, how is the sound of an echo produced? |
| 36691 | _ Emily._ Pray, is not a magic lanthorn constructed on the same principles? |
| 36691 | _ Emily._ Pray, what is the reason that we can not see an object distinctly, if we place it very near to the eye? |
| 36691 | _ Emily._ Pray, why does the sun appear red, through a fog? |
| 36691 | _ Emily._ Since dark bodies, absorb more solar rays than light ones, the former should sooner be heated if exposed to the sun? |
| 36691 | _ Emily._ Since it is impossible, in this case, to make the object approach the eye, can not we by means of a lens bring an image of it, nearer to us? |
| 36691 | _ Emily._ Since the air is a gravitating fluid, is it not affected by the attraction of the moon and the sun, in the same manner as the waters? |
| 36691 | _ Emily._ So it appears: yet I have seen a cylinder of wood roll up a slope; how is that contrived? |
| 36691 | _ Emily._ Such as a piece of broken china, or glass? |
| 36691 | _ Emily._ That is very extraordinary; and how then do you account for the heat being greatest, when we are most distant from the sun? |
| 36691 | _ Emily._ The attraction of cohesion is then, I suppose, less powerful in fluids, than in solids? |
| 36691 | _ Emily._ The hinges represent the fulcrum, our hands the power applied to the other end of the lever; but where is the weight to be moved? |
| 36691 | _ Emily._ The moon, Mrs. B., appears to move in a different direction, and in a different manner from the stars? |
| 36691 | _ Emily._ Then when we want to lift a great weight, we must fasten it to the shortest arm of a lever, and apply our strength to the longest arm? |
| 36691 | _ Emily._ There are then other kinds of air, besides the atmosphere? |
| 36691 | _ Emily._ These divergent rays, issuing from a single point, I believe you told us, were called a pencil of rays? |
| 36691 | _ Emily._ This is one of the advantages of carriage wheels, is it not? |
| 36691 | _ Emily._ To what extent must I open the compasses? |
| 36691 | _ Emily._ What does that mean? |
| 36691 | _ Emily._ When the moon eclipses the sun to us, we must be eclipsed to the moon? |
| 36691 | _ Emily._ When water runs out of the side of a vessel, is it not owing to the weight of the water, above the opening? |
| 36691 | _ Emily._ When you speak of the sun''s motion, you mean, I suppose, his apparent motion, produced by the diurnal motion of the earth? |
| 36691 | _ Emily._ Yet they actually touch each other? |
| 36691 | _ Emily._ You astonish me: surely you do not mean to say that large bodies attract each other? |
| 36691 | _ Emily._ You hold the wire awry, I suppose, in order to show that the axis of the earth is not upright? |
| 36691 | and are colours less beautiful, for being accidental, rather than essential properties of bodies? |
| 36691 | and how does she accompany the earth? |
| 36691 | and were to strike the ball A, at the same instant; would it not move? |
| 36691 | and what their uses? |
| 36691 | and why not? |
| 36691 | are, I suppose, less powerful in their refractions? |
| 36691 | have bodies no weight? |
| 36691 | how can you put the two bodies of different weight within the glass, without admitting the air? |
| 36691 | how could that answer the purpose? |
| 36691 | is there another species of gravity, with which we are not yet acquainted? |
| 36691 | make a light body balance a heavy one? |
| 36691 | must I not exert ten times as much strength to draw the larger one to me, in the same space of time, as is required for the smaller one? |
| 36691 | operate? |
| 36691 | represent, and what are its extremities called? |
| 36691 | that is an excellent thought, Emily; will you stand the test, Mrs. B.? |
| 36691 | to what height will it ascend, and what will it form? |
| 36691 | weight with ten times the force that it does that of 100 lbs.? |
| 36691 | what is the inclination of her orbit? |
| 36691 | what would result? |
| 36691 | when I ring this little bell, is it the air that sounds, and not the bell? |