Using high-powered lasers, physicists in Japan are doing the next best thing — for the briefest of instants they are creating similar conditions in the lab. The overall energy generated by those ...

For many years, semiconductor lasers, tiny chips emitting light, have been the workhorse of the optical communications industry, sending data signals around the world via a web of optical fibres.

The permanence of hammering nail holes in the wall makes us nervous, and we worry about making a mistake and having to hammer ...