Möbius strip question

How can the edge of a Möbius strip being projected on a 2 dimensional plane?

Precisely the ending of this video:

I just can get it since his animation goes by it so fast.

Last edited:

mathwonk
Homework Helper
how about just looking at the red edge of the mobius strip on the first page of your video. you see a closed curve that crosses itself once. i.e.anything drawn on a flat screen is already projected into 2 dimensions, it requires some visual imagination to see it as in 3 dimensions.

YoungPhysicist and WWGD
WWGD