Moibus Strip depicted by Escher.
My 19yo nephew in the Philippines is in engineer college and just the other night I cammed him how to take a strip of paper to form first a loop, then the Mobius loop ...
I watched him as he wrote down the name August Fernand Mobius ... I could see his excitement.
I have taken great pleasure through the years illustrating the Mobius loop to kids.
Something clicks in about 40% of their faces