This November European researchers declared the world's largest superconducting magnet, called the Barrel Toroid, "ready for physics" when the Large Hadron Collider, the world's next top particle smasher, turns on next year in Geneva. The magnet will power the ATLAS particle detector, which physicists hope will detect the long-sought Higgs boson. Sometimes called the God particle, the elusive Higgs is thought to give mass to all other particles.