Why/how does cuing ribbon curl when you run the sharp end of a pair of scissors along it? Would any other tool or material ever have this effect?

Question

*CURLING RIBBON, sorry. I was delirious when I posted this.

This has probably baffled me *since* I was five. What is this sorcery?!?

In: Physics

Answer 1

It works on hair too but I don’t recommend it. I knew people back in the day who used to curl their hair this way