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Earth's days may have gotten a little bit shorter since the massive earthquake in Chile, but don't feel bad if you haven't noticed. The difference is just about one-millionth of a second. ... An earthquake can make Earth rotate faster by nudging some of its mass closer to the planet's axis, just as ice skaters can speed up their spins by pulling in their arms. Conversely, a quake can slow the rotation and lengthen the...


 Chile earthquake axis rotation spin incredible day
Many of us would be hard-pressed to remember what we were doing on 24 July this year. But for many YouTube fanatics, amateur film and documentary makers, or even just those curious of a unique movie-making experiment, that day was the chance to produce a small part of cinematic history.


 movie YouTube crowdsourcing day