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Turing machine built from artificial muscles may lead to smart prosthetics
In the hierarchy of computing hardware, artificial muscle doesn't really even register: it's usually a target for action, not the perpetrator. The University of Auckland has figured out a way to let those muscles play a more active role. Its prototype Turing machine uses a set of electroactive polymer muscles to push memory elements into place and squeeze piezoresistive switches, performing virtually any calculation through flexing. The proof-of-concept computer won't give silicon circuits any threat when it's running at just 0.15Hz and takes up as much space as a mini fridge, but the hope is to dramatically speed up and shrink down future iterations to where there are advanced computers that occupy the same size as real muscles. Researchers ultimately envision smart prosthetic limbs with near-natural reflexes, completely soft robots with complex gestures and even a switch from digital to analog computing for some tasks. Although we're quite a distance away from any of those muscle-bound ideas becoming everyday realities, it's good to at least see them on the horizon.
Rubbery artificial muscles promise to make robots more lifelike
Some robots may already look pretty lifelike, but it's still quite a different story when they're actually moving, when all the mechanical parts inside make themselves known with some unmistakable, robot-like movements. Some researchers at New Zealand's Auckland Bioengineering Institute now have one possible solution to that problem, however -- a motor with none of the usual moving parts. Instead, the rubbery, Cronenberg-esque contraption relies on some electroactive structures that can stretch by more than 300 percent, and expand and contract when a voltage is applied. While things are obviously still very early, it's conceivable that robots could eventually be built entirely out of these artificial muscles -- or, as lead researcher Dr. Iain Anderson succinctly puts it, "the future is soft." Video after the break.
