id author title date pages extension mime words sentences flesch summary cache txt 29241 nan Little Masterpieces of Science: Invention and Discovery .txt text/plain 41736 1797 63 A recent wonder of electric art is its penetration by a photographic ray bar moved in and out of a coil of wire excites electricity the wire which carried an electric current was an electrified body, and repeat the experiments with electric currents, which, up to that time, He began his experiments "on the induction of electric currents" by of magnetic force;" and he showed that to produce induced currents magnetizing sewing needles and pieces of steel wire, shown in Fig. 3. balance the electric charge of the cable wire (Fig. 60). increasing the carrying power of a telegraph wire in this way took mechanical way the battery current was thrown into waves, and electrical light, or a new form of electricity. For all that the electric current is not as yet produced as economically his new power, while the long-distance transmission of electrical energy theory that heat light, electricity, magnetism, chemical action, ./cache/29241.txt ./txt/29241.txt