Imagine changing the channel of your TV simply by moving your cup of tea, adjusting the volume on a music player by rolling a toy car, or rotating a spatula to pause a cookery video on your tablet.

Pico projectors might be able to turn any old surface into a display - with varying results of course - but can they turn any old surface into in interactive display and everyday objects into a remote ...

It sounds like a joke, but in the future, if you want to turn the volume up on your Apple TV 4K set, you could wave a hand, a baseball bat, or any object lying around you to get the job done. Before ...