The strange science of cutting a Möbius strip!!

Imagine holding a strip of paper. You give it a half-twist and then tape its ends together. The shape you’re now holding is the ticket to a world where surfaces have only one side and boundaries blur ...

Just like a Möbius strip made of paper, when this DNA Möbius strip is cut down the middle, it generates a loop half as narrow and twice as long as the original, with four half turns (a twist of 720o) ...

Möbius strips are curious mathematical objects. To construct one of these single-sided surfaces, take a strip of paper, twist it once and then tape the ends together. Making one of these beauties is ...