Physicists are fascinated with heady puzzles, from the nature of space and time to how the universe came to be. But spinning lawn sprinklers? Yes, that too.
A new experiment provides an answer to a quirky physics quandary popularized by physicist Richard Feynman in the 1980s. The puzzle centers on a style of sprinkler that works by squirting water out the ends of an S-shaped tube. The sprinkler spins away from the escaping water due to conservation of angular momentum.
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