Traffic jams and even supermarket queues could be a thing of the past thanks to the biggest transport breakthrough since the wheel. If Sean Hayward and Hisa-aki Shinkai of the Woman's Unicersity in Korea are proved correct then we could soon be getting to work by stepping into a quantum worm-hole. According to Einstein's theory of relativity, there are tiny worm-holes all around us, offering a cheap shortcut to another part of the universe. The only reason we don't get sucked in by these ever-present gaps in the time-space continuum is that each one is smaller than a single electron. But, according to recent research, the size of worm-holes can be enlarged by the simple addition of negative energy. At the moment it's a delicate operation - not enough negative energy and your short-cut to work could collapse into a black hole which would consume the known galaxy, too much and it could turn into a whole new universe which would expand at the speed of light and blow our one into smithereens. Still, scientists are hopeful they will have the micro-calculations worked out soon and, until the standard of service on British Railways improves substantially, it could be a rish worth taking.