Round Triangles!

Why circles are round (and triangles too!) rotor in a square hole: more info on reuleaux rotors and other SWEET stuff: minutephysics is now on Google+ - And facebook - And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder NEW ALBUM!! -- youtube:

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