Here’s a great trick of the light that looks like magic. Put a picture into water, and the colour disappears! And the best thing is, the colour comes back when you take the picture out again.
In this trick, you’ll wrap a shoelace around a pencil and a strip of cardboard. The string seems to pass straight through both, tearing the cardboard, but leaving the pencil untouched!
Let’s look at a few interesting patterns you can get by dividing. Some of these patterns need a lot of digits, so get the best calculator you can find.
