The photo taken on November 17, 2014 shows a manuscript of Albert Einstein's famous equation E=mc2 on display at the scene of the 皇冠体育app Guardian 2014 Autumn Auctions in Beijing. The handwritten equation has been valued at 80,000 to 200,000 yuan ($13,061 to $32,658). [Photo/皇冠体育app News Service]
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