Searching for gold may not be such a hopeless thing to do, if you know where to look. Apparently a local prospector in Ballarat, Australia knew where to look, as he has found a gold nugget weighing 5.5 kilograms, worth up to half a million dollars. The name of the lucky man, who discovered the precious nugget, is being kept secret, the Courier newspaper reports. Experts at the Ballarat Mining Exchange...