Earthworms creep along the ground by alternately squeezing and stretching muscles along the length of their bodies, inching forward with each wave of contractions. Snails and sea cucumbers also use this mechanism, called peristalsis, to get around, and our own gastrointestinal tracts operate by a similar action, squeezing muscles along the esophagus to push food to the stomach.
Tagged: Soft Robots
Most robots are built out of rigid materials, but a DARPA initiative to build soft-bodied robots that can squeeze into hard-to-reach places has led to the development of new types of the mechanical marvels. Harvard’s Whitesides Research Group is working on a soft-bodied solution and has produced a squishy three-legged bot that can jump 30 times its height using the power of internal explosions.