Geometry genius designs 4-legged cafe table that never rocks

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Thought this was fascinating..

http://google.com/newsstand/s/CBIw4N3PyjU

All the need to do now is make them compulsory.
 
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His solution is fascinating. Thanks for sharing. Until these catch on, you can try the trick of rotating up to a quarter turn. See this video.
 
Next a set of none rocking chairs to match?