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 89
equally simple, of convex and con- 68 LIGHT LECT. I cave mirrors. These are separately shown in Figs. 13 and 14(pp. 25, 26), in both of which the incident waves are plane.Consider (Fig. 42) a plane wave which at a certain instantwould have arrived at SAS had its path lain wholly in air.The central…
Light · X-rays
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