
Tangloids is a mathematical game for two players created by Piet Hein to model the calculus of spinors. A description of the game appeared in Scientific American in a column on the mathematics of braiding. Two flat blocks of wood each pierced with three small holes are joined with three parallel strings. Each player holds one of the blocks of wood...
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http://en.wikipedia.org/wiki/Tangloids

A mathematical game for two players devised by Piet Hein to model the calculus of spinors. Two flat blocks of wood each pierced with three tiny holes are joined with three parallel strings. Each player holds one of the blocks of wood. The first player holds one block of wood still, while the other p...
Found on
http://www.daviddarling.info/encyclopedia/T/Tangloids.html
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