Now experts say they have unravelled the mystery of why laces come undone. A pair of forces interact like an invisible hand, first loosening the knot and then tugging until the laces trail on the ground.
Have you watched as techie's demonstrate an ATM machine spewing out cash?
Virtual reality is poised to make you sweat at home or in the office without leaving the room. But Why should we work out with VR? Will pretending to be a race car make you pedal harder, longer?