July 12, 2012
Cultural historian P.D. Smith, author of Doomsday Men, argues that the city is humanity’s greatest creation. After reading City: A Guidebook for the Urban Age, it’s easy to believe it’s true. City is not a simple chronological history of urban areas from their first appearance in ancient Mesopotamia to modern megacities. Instead, Smith organizes his [...]
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February 29, 2012
Quick: multiply DVII by XVIII. Before you could work the problem you translated it into Arabic numbers didn’t you? The person you can thank, or blame, for your ability to multiply and divide is the mathematician and astronomer Muhammad ibn Musa al-Khwarizmi (ca. 783-847), whose name lives on in a mangled form as “algorithm. (Honest. [...]
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