Child play: A children's puzzle has helped unlock the secrets of magnetism -- Science & Technology -- Sott.net
People have known about magnets since ancient times, but the physics of ferromagnetism remains a mystery. Now a familiar puzzle is getting physicists closer to the answer. The 15-puzzle asks players to slide numbered tiles around a grid. When the...
United States New Zealand San Diego California Institute Of Technology United Kingdom Ryosuke Nagaoka
Source: sott.net