Science and technology

Associated Press
FILE - In this Oct. 17, 2012, file photo, a man raises his hand during at Google offices. Google's stock price topped $800 for the first time Tuesday, Feb. 20, 2013, amid renewed confidence in the company's ability to reap steadily higher profits from its dominance of Internet search and prominence in the increasingly important mobile device market.  (AP Photo/Mark Lennihan)

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