How stuff works

Posted on 2012/12/27

Zipper


Perimeter and Pi


Steam engine


Tesseract


Knight’s tour


Caliper


Constant-velocity joint


Pythagoras theorem


Radial engine


Geneva drive


Drawing Hypotrochoid


Alpha Stirling engine


Drawing Yin Yang


Wankel engine


Sewing machine


Epicyclic gearing


Pin tumbler lock

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