Via JWZ’s LiveJournal I found a method for slicing a bagel into two linked halves. I decided to try it. Video below the cut.
I just did this freehand; this was my first try. Not as hard as the instructions make it sound.
I think it’s pretty cool. Impress your nerdy friends!
It’s not really a Möbius anything, though: the cut has a full twist rather than a half twist, which is why you still get two separate pieces. If you make a true Möbius cut you’ll get one long loop of bagel.
Oh, I know. But that’s what I’ve seen most people call it, and it evokes the right sort of topology ideas in non-experts.
Nurd Up!