Great facts : a popular history and description of the most remarkable inventions during the present century (1860)
Bakewell, Frederick C. (Frederick Collier), 1800-1869 · New York, D. Appleton and company · leaf 115
h the positions of one or more of them arechanged. A favourite subject represented is a clown THE MAGIC DISC. 99 leaping over the back of a pantaloon, wliich affordsa simple illustration of the apparent relative move-ments of two bodies, and will serve to explain howthe effect is produced. The… … is an elongated aperture, about one inch long and aquarter of an inch wide, for the eye to look through.Suppose the disc to be divided into eight compart-ments, by radial lines. In the compartment No. 1,the pantaloon is represented in a stooping posture. 100 GREAT FACTS. and the clown is on the…
Inventions
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