03 Jun '11, 4pm

Love how this thing shimmies up a door: Gecko-Inspired #Robot Powered by Water, Scales Glass Surfaces (Video) #biomimicry

To function, the robot gets connected to a faucet with a loop (a really long loop, if necessary) of hose. As water flows through the hose, its pressure accomplishes several things. First, the water passes through fluidic vacuum generators, which use that same Bernoulli principle that those supersonic jet grippers take advantage of to turn the motion of a fluid into a vacuum. This allows the bot's feet to stick to any smooth surface. Then, the water is routed through a solenoid valve to a piston that's attached to the "spine" of the robot. The inspiration for this design was the gecko, arguably the best wall-climber in existence, and the upshot of it is that the robot can climb relatively quickly (constrained only by the time it takes to establish a solid vacuum) and turn in either direction with just one single spinal actuator. And of course lastly, the water is squirted o...

Full article: http://www.treehugger.com/files/2011/06/gecko-inspired.php

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