GENEVA � Scientists moved Saturday to prepare the world's largest atom smasher for exploring the depths of matter after successfully restarting the $10 billion machine following more than a year of repairs. The nuclear physicists working on the Large Hadron Collider were surprised that they could so quickly get beams of protons whizzing near the speed of light during the restart late Friday, said James Gillies, spokesman for the European Organization for Nuclear Research. The machine was heavily damaged by a simple electrical fault in September last year. Some scientists had gone home early Friday and had to be called back as the project jumped ahead, Gillies said. At a meeting early Saturday "they basically had to tear up the first few pages of their PowerPoint presentation which had outlined the procedures that they were planning to follow," he said.