Artificial "muscles" achieve powerful pulling force

The tiny coils in the fiber developed by MIT researchers curl even tighter when

The tiny coils in the fiber developed by MIT researchers curl even tighter when warmed up. This causes the fiber to contract, much like a muscle fiber. Credit: Felice Frankel, edited by MIT News

MIT researchers have developed artificial muscles that can stretch more than 1,000 percent of their size and lift more than 650 times their weight, reports Sid Perkins for Scientific American. The new fibers could have applications in robotics and prosthetic devices, Perkins explains, and "work more like real muscles: they do work by pulling on or lifting objects."


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