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Maths in a minute: Black holes
A quick introduction to the monsters that lurk at the centre of each galaxy.
Simone Biles stunned audiences at the 2016 Olympics with a move that appeared to defy gravity. Did it really? Two sports scientists explain the physics of the Biles.
How large are the forces acting on a gymnast swinging on the high bar?
String theory is a theory of everything in which everything's made of strings — but why strings? What do they do? Find out in our equation-free introduction for beginners.