eddy currents

Veritasium visits the National High Magnetic Field Laboratory to see the world's strongest magnets and demonstrate effects like eddy currents. It covers what intense magnetic fields do to materials and objects.

Archive footage from 1964 of Royal Marine Commando volunteers filmed on a field exercise after taking LSD at Porton Down. It documents a British military drug trial.

The full 1973 BBC Lighthill debate on artificial intelligence, featuring James Lighthill, Donald Michie, Richard Gregory and John McCarthy. It documents the argument that preceded the 1970s AI winter and includes early robot demos.

Tom Scott visits the Strid at Bolton Abbey in Yorkshire, a deceptively narrow stretch of river with dangerous currents. He covers its reputation and the 12th-century legend of the Boy of Egremont.

A short clip from The Simpsons episode "Hurricane Neddy" containing the line "We've tried nothing and we're all out of ideas."