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439: Nick Robinson’s Penrose Triangle

Posted by wonko on April 25, 2013 in geometry |

The “Penrose Triangle”, also known as a Penrose Tribar is an impossible object:

If you look at any vertice it makes sense but the shape, as a whole, cannot exist … well, until now that is.

When I first saw folds of this I was intrigued, knowing a folder on Facebook, he suggested I approach the designer, Nick Robinson, who graciously shared his design with me (isn’t the interweb amazing).

There are many things you can do with these shapes to break your brain, and I have seen some astonishingly beautiful configurations of thin long triangles interwoven. My attempt is a simple tryptych – I think it works well – the shades of green help with the illusion – careful colour choice can greatly enhance the effect I have found.

I like this model a lot – the mathematician voice in my head (one of the quietest of the 13 at the moment) is clapping politely at the economy and geometry of this construction, 60 degrees taken over many layers, hiding some, exposing others to create a lovely modular that would look great in a frame.

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