id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
3f462517k8t	Jamee Elder	The Epistemology of Gravitational-Wave Astrophysics	2020		.txt	text/plain	182	8	37	The second concerns the use of gravitational waves to observe binary black hole mergers. This field was launched in 2015 by the first direct detection of gravitational waves and the first direct observation of a binary black hole merger by the LIGO-Virgo Collaboration.	cache/3f462517k8t.txt	txt/3f462517k8t.txt