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 297
ir) whether the charge be posi-tive or negative. Here is a convenient arrangement forexhibiting the experiment. An electroscope made onExners plan with three leaves—the central one a stiffplate of metal—is charged, and then exposed to Ront- 1 Ultra-violet light will not diselectrify a metal surface… … VI RONTGEN LIGHT 269
Light · X-rays
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