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Gilbert light experiments for boys (1920)

Lynde, Carleton John, b. 1872, Gilbert, Alfred C. (Alfred Carlton), 1884-1961 · New Haven, Conn. : A.C. Gilbert Co. · leaf 65

An illustration from Gilbert light experiments for boys, 1920, leaf 65
s in the mirrors appear to theaudience to be the back. The man,lady, and as- Fig. 92. Cabinet closedFrom Hoffmans Modern Magic sistant, ofcourse, hidebehind the mirrors. Members of theaudience stand behind and beside thecabinet all through the performance.The assistant swings the mirrorsagainst the… … Cabinet openFrom Hoffmans Modern Magic Illusion Show. Pharaohsthumb. Make a table out ofcardboard (Fig. 95) and stand iton three legs, each of which isexactly 5% inches from the othertwo, and place your two mir-rors between A and B and A andC. Surround it by screens onthree sides, making the sides…

Light · Scientific recreations

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