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 64
Fig. 30. thick. Stand in front of a mirror, close one ey say the right—and hold a candle in the hand on same side. Hold the candle about at the level of the closed eye so that its light just falls across the bridge of the nose into the open eye. Then if you look very carefully you will see, right… … you 48 LIGHT lect. raise the candle higher, the image goes down; if youlower the candle, the image rises. Leaving lenses let me show you a couple ofinteresting experiments depending on the property ofrefraction that we have been discussing. In passingthrough the earths atmosphere obliquely, as they…
Light · X-rays
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