TechnologySingle light wave flashes out from fibre laser A long-elusive goal of physics has been reached – producing a pulse of light so short that it contains just a single cycle of a light wave News
Âé¶¹´«Ã½ 2009 trivia quiz Cheating soccer robots, new ways into space and smelling out the sexes - how much do you know about the less groundbreaking advances of the past year? Features