This robotic prosthetic hand gives its wearer back over 90 percent of the functionality of their lost limb, according to its designers. Called the "Hannes" prosthetic device, recipients can do everything from driving to using a pencil or even sawing through a plank of wood. Marco Zambelli, 64 from Sant'Agata Bolognese, lost his hand in a workplace incident when he was 15. For the past three years he has been testing this new robotic prosthetic limb. "I had always prioritized my left hand, in fac

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