Light visible and invisible : a series of lectures delivered at the Royal Institution of Great Britain, at Christmas, 1896 (1897)
Thompson, Silvanus Phillips, 1851-1916, Royal Institution of Great Britain · New York : Macmillan · leaf 248
ons. If the receiver is set THE INVISIBLE SPECTRUM 22 = obliquely to the sender so that no waves from the senderenter the receiver, the galvanometer will give no indica-tions. But if the waves from the sender are reflectedinto the mouth of the receiver by holding in front, at theproper angle, a… … Fig. 125. of the receiver. The picture also shows a grid of metalwires which can be used to polarise the electric waves. More recent than the researches of Professor Lodgeare those of Professor Righi, whose apparatus is shownin Fig. 125. It consists of two parts, a sender and areceiver. The sender,…
Light · X-rays
Internet Archive · UBC Library · Public Domain Mark 1.0. Free to use for anything.
