Round Triangles!

  Open with LBRY

Why circles are round (and triangles too!)

rotor in a square hole: http://www.youtube.com/watch?v=KUeQugasOkk
more info on reuleaux rotors and other SWEET stuff: http://www.howround.com

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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
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https://www.youtube.com/watch?v=6MhD2xZVypo