Science and technology

Associated Press
In this Tuesday, July 28, 2015 photo, a member of the library restoration staff works on a damaged document at the Baghdad National Library in Iraq. Librarians and academics in Baghdad are working to preserve what's left after thousands of documents were lost or damaged at the height of the U.S.-led invasion. As the Islamic State militants now set out to destroy Iraq's history and culture, a major preservation and digitization project is underway in the capital to safeguard a millennia worth of history. (AP Photo/Karim Kadim)

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