How smart technology gadgets can avoid speed limits
Speed limits apply not only to traffic. There are limitations on the control of light as well, in optical switches for internet traffic, for example. Physicists at Chalmers University of Technology now understand why it is not possible to increase the speed beyond a certain limit – and know the circumstances in which it is best to opt for a different route. Light and other electromagnetic waves play a crucial role in almost all modern electronics, for example in our mobile phones. In recent years researchers have developed artificial speciality materials – known as optomechanical