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 276
ge in high vacua. Professor Hittorf of Miinsterhad already done some excellent work in this direction.He had noted the golden-green fluorescence around thekathode when the exhaustion was pushed to a highdegree; and he had found that this golden glow, unlikethe luminous column which at a lower… … Fig. 133.—Professor William Crookes, F.R.S. vi RONTGEN LIGHT 253 investigated the properties of this kathode light, andfound it to differ entirely from any known kind of radia-tion. It appeared to start off from the surface of thekathode and to move in straight lines, penetrating to adefinite…
Light · X-rays
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