11 Jul
2015
11 Jul
'15
4 p.m.
This is why, when you fold a bandsaw blade, you end up with a 3-loop solution: https://www.youtube.com/watch?v=2KYKOd2Gk5E On 07/11/2015 04:58 PM, Dan Asimov wrote:
... Any closed curve in SO(3) = P^3 belongs to one of two homotopy classes; loops in the different classes cannot be continuously deformed into one another. (This result is famous in physics; perhaps Veit or Gene can elaborate.)