Wedding DJ Mary Nisi tries out Songza, an app that offers users ready-made playlists for almost any mood or situation. Nisi has one word of warning: Once you log in, she says, you may never put your phone down again.
They've been called the first "Social Games" — and the London Summer Olympics have made social stars out of athletes like gymnast Gabrielle Douglas, who saw her Facebook fanbase grow by nearly 4,000 percent.
After years of reliance on large drones like the Predator, the military is now finding that smaller devices can do the job better. The Army has deployed thousands of unmanned aerial devices that fit in a soldier's backpacks. Now, manufacturers are hoping these smaller vehicles will become big sellers.
Over the Pacific Ocean, there's going to be a test of an experimental unmanned aircraft called the X-51A WaveRider. If all goes as planned, it will accelerate to about 3,600 mph — a speed that could get you from L.A. to N.Y.C. in 46 minutes.
As the Olympics have shown, participation in sports at this high level can teach discipline, perseverance and teamwork. But can the Olympics teach U.S. athletes to think in meters and kilos instead of feet and pounds?
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