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Zig-zag roller Activity

by David, 14 October 2021 | 0 comments

Two cardboard shapes held together with tape, one green, one white.

This weird, wonderful shape is called a sphericon and it has a strange way of rolling. It wiggles back and forth as it trundles downhill!

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A spinning coin explained Activity

by Carol Saab, 4 July 2013 | 2 comments

A man is looking at a rainbow coloured coin as it spins.

What happens when you spin a coin on a table? It spins and rolls (or ‘spolls’), for starters. How it stops is much more fascinating.

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Spinning, rolling and hula hooping Activity

by Carol Saab, 27 June 2013 | 2 comments

What does hula hooping have to do with science? Quite a lot when we think about physics; namely energy, motion and torque. Check out the latest installment of our new video series to see some awesome hooping and how easy it is to mimic this movement with other objects.

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