Get your body through an index card
How to get your body through an index card This simple topological experiment can also turn into a challenge. The idea is to start with a standard 3X5 index card, and cut a hole in it that is large enough for you to fit your body through. That may sound impossible, but as we saw with the Mobius Strip, by playing with shapes and spaces, we can do all sorts of things.You will need: a standard 3 inch by 5 inch index card. You can also use a 3 X 5 piece of heavy paper, scissors and a ruler ...more
