The Penrose triangle, also known as the tribar is an impossible object. It was first created by the Swedish artist Oscar Reutersvärd in 1934. The mathematician Roger Penrose independently devised and popularised it in the 1950s, describing it as “impossibility in its purest form”.
The object you see in the video has been designed in AutoCAD R14, then rendered in Inventor.
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http://www.youtube.com/watch?v=MOyEiKS9xzc
[/coolplayer]
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