In a marriage of social media and warfare, Israel announced its military operation in the Gaza Strip via Twitter. Shortly afterward, Israel released video footage of a deadly air strike. Hamas, meanwhile, has been commenting on its rocket attacks against Israel.
Wearable robots are making walking a reality for paraplegics in rehabilitation centers around the country. But before Iron Man-like suits become mainstream, they'll need to overcome cost and regulatory hurdles.
The Microsoft executive in charge of bringing Windows 8 to market is out. Steven Sinofsky leaves Microsoft less than three weeks after a major rewrite of the popular operating system was released. Sinofsky had been seen as likely to succeed CEO Steve Ballmer.
Titan, the new supercomputer at the Oak Ridge National Laboratory in Tennessee, has been crowned the fastest in the world. It can clock 17.59 petaflops (quadrillions of calculations per second). Audie Cornish talks to Steve Henn for more.
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