The ACM-R5H is a snake robot that can go where no human can go. It's designed to perform underwater inspections and search-and-rescue missions in hazardous environments.
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This snake robot can perform motions that even real snakes can't, such as continuously rolling over its entire body.
The first ACM-R5H prototype was completed in 2005 at Shigeo Hirose's lab at the Tokyo Institute of Technology. A product version was developed in 2010 by HiBot, a Tokyo Tech spin-off founded by Prof. Hirose, Michele Guarnieri, and Paulo Debenest. The new model was designed to be modular and easier to customize: It's easy to attach more segments to the snake's body to make it longer, or remove segments for a shorter robot. The latest version, which is commercially available, is fully waterproof and a skillful swimmer.