The double-tipping nullhomotopy
by David Pengelley and Daniel Ramras

Here we collect animations and demonstrations supplementing our article "How efficiently can one untangle a double-twist? Waving is believing!" (Here is a link to the published version, from the Mathematical Intelligencer).

Animations and Demonstrations:

If you enjoy these animations, you should also check out the work of Greg Egan and Bob Palais!