Demonstrations included one robot that crawled up walls and across ceilings, another that clambered over rocks with six rotating legs and a third that wriggled like a snake through a pipe. [...]
Among the robots shown in action was the "Wall Crawler," which can motor up walls and across ceilings on six wheels. It adheres to various surfaces, including brick walls, by means of a louvered fan that creates a low-pressure region between two adjacent surfaces, said Bryce Wiedeman, vice president of operations for Avionic Instruments Inc.
The 8.5-by-6.5-inch robot can be equipped with a video camera on a boom, he said, "that allows us to take a little peek around a corner or over a ledge into a window." He said it works even more efficiently underwater, moving around by remote control on the hull of a ship to send back video for safety examinations.
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