Scientists have developed a sensor, worn on the wrist like a watch, which allows the wearer to control any electronic device with a simple flick of the wrist.
Researchers at Newcastle University and Microsoft Research Cambridge (MSR) created the sensor 'Digits' which tracks the 3-D movement of the hand and allows the user to remotely control any device.
The gadget uses a minute camera to track hand movements and can recognise specific gestures, which it translates into commands
