Olympic Curling Doesn’t Only Stump Viewers—It Confuses Scientists, Too
> The stone, a hefty piece of granite sent careening across the ice, doesn’t behave the way scientists expect, and no one knows exactly why
> Spin an overturned glass clockwise on a smooth countertop and it drifts to the left. Spin it counterclockwise and it drifts to the right. A curling stone in play does the opposite. Spin that glass harder and it makes a sharper turn. In curling, the faster the stone spins, the more straight it goes.