27 Mar 2012 amatus   » (Journeyer)

This is all well and good, but can the rope be knotted such that the nails must be removed in a p...

This is all well and good, but can the rope be knotted such that the nails must be removed in a particular order?

[1203.3602v1] Picture-Hanging Puzzles
Abstract: We show how to hang a picture by wrapping rope around n nails, making a polynomial number of twists, such that the picture falls whenever any k out of the n nails get removed, and the pictur...

Syndicated 2012-03-20 19:33:07 from Plus Public Activity Feed for David Barksdale

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