"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Jack Whitehall widens his eyes and stares deeply into the hypno-disc, an immense black-and-white pinwheel ...

Jack Whitehall widens his eyes and stares deeply into the hypno-disc, an immense black-and-white pinwheel hanging on the wall in front of us. It gradually begins to spin as a woman in a Museum of ...