Researchers have developed sensor on a pair of glasses that can pick up the motion of your skin when you blink which could be used to switch the lights on and off, or to help those with limited or no mobility write messages on a computer.

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Researchers have developed sensor on a pair of glasses that can pick up the motion of your skin when you blink which could be used to switch the lights on and off, or to help those with limited or no mobility write messages on a computer.