Physicists who changed the lightbulb win Nobel Prize

In a choice that surprised Nobel watchers, this year's physics prize is going to three Japanese scientists not for a basic discovery, as is typical, but rather for an invention: the blue light-emitting diode (LED). The Nobel committee recognized three researchers as contributing equally to the breakthrough: Isamu Akasaki of Meijo University in Nagoya and of Nagoya University; Hiroshi Amano of Nagoya University; and Shuji Nakamura, now of theUniversity of California, Santa Barbara. Read more.