Instructions unclear, Chopped fingers off. :(. Really this is cool though. Math = Power

This is awesome . I learned to cut bagels in a cool way.

It's a really smart way of cutting bagels that also reminds me of the proper way of flipping mattresses.

lol people are angry about this

How long did it take you to conjure up this idea? Also, how many tries did it take to perfect it? Also, thank you for teaching me how to cut a bagel in two congruent linked halves, I wouldn't have ever thought of this idea before.

Holy crap, what's with the overly negative comments? I thought it was pretty cool.

Thank you for providing the world with Vihart. She is fantastic.

NOOOW I see where Vi get's her talents from. She is awesome, well done Mr. Hart!

this is how i order my Bagels and the restaurant employees just look at me -_-

Can you cut the linked pieces together again to make four?

No, because the twisting adds area. Imagine it twisted 1000 times, and it is obvious that the cut surface has greater area than with no twisting. If you are thinking of Pappus's centroid theorem, that assumes a surface of revolution with no twisting. But it can be generalized for the twisted cut.

Basically a magic trick using math. BRILLIANT

I'm assuming this won't work for pre-cut grocery store bagels such as Thomas brand Bagels?

But where do I start eating it?!

Never mind the bagel, what kind of alien toaster is that!?