A Boston Celtics game-inspired friction test finally pinned down the sneaker squeak

A new study uses physics to uncover why sneakers squeak on the basketball court.
Taipei Times

Friction test finally pins down the sneaker squeak

Djellouli and colleagues slid a sneaker against a smooth glass plate repeatedly. They recorded the squeaks with a microphone and filmed it with a high speed camera to see what was happening under the ...
Discover Wildlife

It’s almost twice the size of Washington state and stretches 18 miles down into the Earth’s crust – and it’s underwater too

It measures 310,000 square kilometres (119,000 square miles) and its ‘roots’ extend around 30 kilometres (18 miles) into the Earth’s crust. (For comparison, the US state of Washington is 184,661 ...