Do you know what a Mobius strip is? We didn't either until we were enlightened by our scientist this week. A Mobius strip is a surface with only one side and one boundary. Imagine a circle where you can run your finger endlessly from inside to outside without ever taking your finger off. To make a Mobius: cut a strip of paper, roll it into a cirlce, but twist one side before glueing the ends together. Mobius loops are used for roller coasters (for maximum fun) and conveyer belts (so all surfaces wear evenly!
Check it out!
Cutting Mobius strips in different ways yields all sorts of cool results.