If you look down and see a series of colorful cubes crawling toward you, don't panic. It's not Tetris come to real life, but rather the creation of robotics researchers at MIT. The M-Blocks robots are cube-shaped modular bots with no external moving parts. Nonetheless, they can move, crawl over each other, and self-assemble.
The secret to the robots' movements lies under the skin. Each little cube hides a small flywheel that can hit speeds of 20,000 revolutions per minute. Magnets embedded in strategic locations help the M-Blocks stick together.… Read more