If you’re a fan of the progressive rock band Yes, then you’re probably familiar with the song “Roundabout.” The lyrics are obscure, to wit: “I'll be the round about/The words will make you out 'n' out” Traffic...

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Digital photography, particularly with the advent of smart phones, has made us a culture of camera buffs. By one accounting, people upload an average of 1.8 billion digital images every day. We photograph our friends...

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