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Scientific American Presents the 2012 Consumer Electronics Show (CES) [Slide Show]

Justin Bieber traded dance moves with a robot, there were "cloud-connected" concept cars, not to mention a 3-D printer that spit out toys, jewelry and more. They were some choice highlights among the thousands of tech novelties that lit up Las Vegas at the annual exhibition
gadget,consumer electronics



Courtesy of Larry Greenemeier

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Ultrabooks, smart phones and gadget-friendly automobiles were the stars of last week's International Consumer Electronics Show (CES) in Las Vegas. But they were hardly the expo's only bright spots. Spread out on a show floor more than 37 football fields in area were plenty of robots, 3-D printers and a variety of new gadgets.

I prowled the floor and came away with photos sampling some of the sleekest, most interesting—not to mention bizarre—technology I could find. Some of the most striking were prototype concept cars that will probably never be used for passenger drives, such as an electric-powered re-imagining of Doc Brown's DeLorean DMC-12 from Back to the Future as well as gorgeous gadgets like Alljack's $68,000 gem-laden wireless speakers.

Click here for a slide show of this year's CES.

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