Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 440
THE PRAXINOSCOPE. 83 substitution, not with the objects themselves, but with theirvirtual images. He then contrived the arrangement whichwe will now describe. A plane mirror, ab, is placed at acertam distance from an object, CD, and the virtual image … M. Raynauds Praxinoscope. will be seen at cd. If we then turn the plane mirror andobject towards the point, o. letting BE and DF be theirnew positions, the image will be at cd. Its axis, o, willnot be displaced. In the positions, A B and c D, first occupiedby the plane mirror and the object, we now…
Scientific recreations
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