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Make a spinning helicopter Activity

by David, 28 April 2021 | 0 comments

Paper helicopter with paper clip weights.

NASA’s Ingenuity helicopter has made history by flying on Mars. To celebrate the first flight of a copter on another planet, here’s a simple unpowered helicopter you can build at home!

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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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