Science and technology

Associated Press
FILE - In this April 22, 2014 file photo, a man uses his phone near an Apple store in Beijing. Apple Inc., the world's most valuable public company, saw its stock price drop for a fifth straight day on Tuesday, Aug. 4, 2015, as investors fretted over China's economy and whether Apple can keep growing at the pace it's maintained over the last few quarters. (AP Photo/Ng Han Guan, File)

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