Netflix viewers got an introduction, this spring, to a famous physics experiment: the three-body problem. A magnetized pendulum suspended above two fixed magnets will swing between them predictably. A third magnet, however, randomizes the motion, not because the laws of physics have been repealed, but because the forces involved are too intricate to measure.
Why Would Anyone Want to Run the World? The Warnings in World War History (John Lewis Gaddis)
Written by Berhanu Anteneh