Category:Astrojax
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Astrojax is a toy consisting of three balls on a string. One ball is fixed at each end of the string, and the center ball is free to slide along the string between the two end balls. Inside each ball is a metal weight. The metal weight lowers the moment of inertia of the center ball so it can rotate rapidly in response to torques applied by the string.
Media in category "Astrojax"
The following 3 files are in this category, out of 3 total.
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Astrojax light trail.jpg 1,600 × 1,200; 311 KB
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Astrojax.jpg 220 × 180; 5 KB
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Astrojax1.jpg 1,800 × 4,000; 1.56 MB
