id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
46706	Various	Scientific American Supplement, No. 467, December 13, 1884			.txt	text/plain	40245	2086	70	organ pipe is the time it takes a vibration to run from one end to the depicting a wave motion of light, the other a sound vibration. the upper wave of red light; the period of vibration is but half as of sound and the number of vibrations constituting light waves, I may imagine vibrations having about twice the frequency of violet light and red light at 400 million million vibrations per second; then the lowest moderate force is required; for it to vibrate ten times per second, 100 times as much force is required; for 400 vibrations per second, 160,000 in a glass jar filled with water, place a number of corks on the lower light, before illustrating a little further by means of this large light, and look at its reflection in a plate of glass on the table form of apparatus for preparing a solution of sulphurous acid in water,	./cache/46706.txt	./txt/46706.txt