7 ms·
Seems like the top and bottom ribbons would work. But the ribbons on the side get a kink every 2 rotations that the animation sort of sweeps under the rug?
by max_likelihood 8y ago
Seems like the top and bottom ribbons would work. But the ribbons on the side get a kink every 2 rotations that the animation sort of sweeps under the rug?
- jacobolus 8y agoThey get a twist, but then loop around the cube, which undoes the twist. You can see their full orientation throughout the animation. (Or try getting your own cube and ribbons and try physically turning it to see for yourself.)
- Maybestring 8y agoYou can see the key behavior by fixing one end of a belt, and moving the free end. You should find that there is a way to apply and remove double twists in the belt without twisting the free end.