This robot is named “Meshworm” for the flexible, meshlike tube that makes up its body. It's mesh like body encases an "artificial muscle" made of nickel and titanium.A shape-memory alloy that stretches and contracts with heat. The wire is wound around the tube, creating sections, much like the sections of an earthworm. They then applied a small current to the segments of wire, squeezing the mesh tube and propelling the robot forward. The team recently published details of the design in the journal IEEE/ASME Transactions on Mechatronics.
Sure, we've seen plenty of robot snakes in the past, but none like this robot earthworm being developed at Chuo University in Japan. The university is now demonstrating a machine that can move on open land and along narrow passageways, using the same method of peristalsis as the average night crawler. Each section of the body expands and contracts in a specific order, thus enabling the rubber-gripped bot to move inside of a tube with almost no lateral motion, even when crawling straight up. We can see how this technology, which NASA is also working on, could be used in fields like geology, robofishing and medicine, even though watching the videos on the site and seeing the word "catheter" in the article made us more than a little uneasy
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