LONDON: Bionic arms have very much improved over the past 10 years. It was reported that three men were chosen to amputate their arms due to nerve damage. Researchers have even managed to create devices that allow amputees to feel the sense of touch with their new limbs.
But the only problem with this amazing technology is that it’s expensive – prosthetics can cost anywhere from US$20,000 – 100,000, and often it can only be produced by specialists. As Derek Muller from Veritasium shows in the video above, by taking a simple idea and applying the latest in 3D printing, researchers from the University of Central Florida have managed to build a sophisticated bionic arm that costs just $300 to make. And kids absolutely love it.
The device is controlled by three electrodes that attach to the remaining part of the upper arm. When the person wearing the arm contracts their muscles, a little electrical pulse passes through the electrodes and triggers a motor that pulls in the fingers of the prosthetic hand. A second pulse then relaxes the hand.
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