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Category Archives: hands-off math

Hinged puzzle

Posted on October 6, 2011 by daniela2daniela
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A puzzle just for your eyes and brain. No paper-cutting. Not until you solve the puzzle, at least 🙂

What shape do we get if we close he hinges clockwise? What if we close them anti-clockwise?

hinged shape

Click here for credits and source attribution

Posted in hands-off math | Tagged hands-off math | Leave a reply

Diabolical Möbius strip variant

Posted on September 13, 2011 by daniela2daniela
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Feynman had a punchline about physics:x=maths:y and we think it’s only fair that we should be allowed, too, to do some math with our hands.

Make these out of paper and cut them along the dotted line. 

What happens? Why?

Click here for credits and source attribution

Posted in hands-off math, Handy Math | Tagged hands-off math, Handy Math | Leave a reply

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