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 117
screen. Another optical illusion depending chiefly upon thepersistence of vision is afforded by the strobic circleswhich I devised in 1877. On giving these black and 96 LIGHT LECT, white patterns a small rinsing motion, the circles andtoothed wheels seem to rotate on their axis. The latest of…
Light · X-rays
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