Ignition switch

摘要

On a breezy day in 2009, action star Arnold Schwarzenegger, then governor of California, took to the stage to dedicate the National Ignition Facility (NIF), the worlds most powerful laser. "I can see already my friends in Hollywood being very upset that their stuff that they show on the big screen is obsolete," the governor quipped in front of the recently completed facility, which uses lasers to squeeze fusion energy from a tiny pellet of hydrogen fuel. "Fusion energy may be exactly what will power future generations on the globe," he added.