File:Balancing boy equilibrium toy.png

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DescriptionBalancing boy equilibrium toy.png	English: Balancing toy that demonstrates stable equilibrium, from 1905 German scientific equipment catalog. The device consists of two pieces, the balancing figure on tiptoe, and the stand that supports it. It appears that the figure's center of gravity is above the stand, so it should fall over, but if tilted it rights itself, rocking back and forth. In actuality because of the two metal ball weights attached, the figure's center of gravity is located below it's support point, under the surface of the stand. Therefore tilting the figure raises the center of gravity, increasing the potential energy, so it is in stable mechanical equilibrium.
Date	before 1905 date QS:P,+1905-00-00T00:00:00Z/7,P1326,+1905-00-00T00:00:00Z/9
Source	Downloaded April 8, 2011 from Catalog of Physical Apparatus, E. Leybold's Nachfolger, Cologne, Germany, 1905, p. 21, fig. 400, (image 46) from Instruments of Science, 1800-1914 collection, Smithsonian Institution website
Author	Unknown authorUnknown author

Public domain	This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.	United States
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	Date/Time	Thumbnail	Dimensions	User	Comment
current	09:02, 15 June 2013		290 × 486 (10 KB)	Chetvorno	User created page with UploadWizard

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