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Do you have a favourite mug? This is my favourite. Not only does it hold my hot chocolate, it has a wicked tricky puzzle on it!

Craft yourself a mathematical ring to learn about straight lines on donuts. Don’t laugh, they do exist!

You’ve seen mazes on paper, you may even have explored big mazes on foot. But this maze has a geometric twist – it’s on the surface of a donut. This is a torus maze!

Written by Sarah Kellett Can we power our homes with the process that powers stars? Nuclear fusion offers to do just that, and scientists are looking for ways to harness this energy with experiments that run hotter than the Sun.