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Long exposure photography allows us to see seconds, minutes, and sometimes hours of motion in one complex photograph. With a lot of patience and a creative eye, many photographers who specialise in this technique help us to see the beauty of falling waterfalls, the remnants of a car’s taillights, trails of stars across the sky, and the spinning of an amusement park ride in ways that our eyes cannot capture in real time. 

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Facebook employees moved into this new campus in Menlo Park, Calif., in December 2011.