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Water-Powered Robotic Hand Can Play Super Mario Bros

By New Scientist

July 23, 2021

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University of Maryland (UMD) researchers used three-dimensional (3D) printing to produce a water-controlled robotic hand capable of completing the first level of the computer game Super Mario Bros in less than 90 seconds.

The hand is composed of hard plastic, a rubbery polymer, and a water-soluble "sacrificial" material that can support complex shapes during printing before being rinsed away. These constituents form a rigid skeleton, as well as fluidic circuits that translate streams of water from a hose into finger movements.

By carefully controlling the pressure of water pulses routed through the hose, the UMD team moved each of the hand's three fingers to operate a controller with sufficient precision to play the game.

From New Scientist
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