Inginerie curata

[postlink]http://videoul-meu.blogspot.com/2011/02/inginerie-curata.html[/postlink]http://www.youtube.com/watch?v=WYcqJ5HdxA4endofvid [starttext] Clayton Boyer demonstrates a variety of square, oval, pentagonal, organic and other unbelievably-shaped gears--and they really work! [endtext]