technology from back to front

What would you do with a ball of string and a pair of scissors?

How about making a [non-alternating knot](http://mathworld.wolfram.com/NonalternatingKnot.html) with projection of minimal crossing number (which, incidentally, is [eight](http://mathworld.wolfram.com/AlternatingKnot.html))?

A non-alternating knot with projection of minimal crossing number

(Thanks to [David Snyder](http://www.txstate.edu/math/people/snyder.html) who told us this.)

by
francis
on
30/05/06
 
 


× 8 = forty

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