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How the Japan Earthquake Shortened Earth's Day

by LiveModern Webmaster last modified Jan 04, 2012 02:07 AM
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by last modified Mar 16, 2011

From our friends at Fast Company , "bridging the fuzzy border between design and business." The 8.9-magnitude earthquake in Japan on March 11 shortened Earth's day by 1.8 millionths of a second, according to NASA scientists. Earth still tilts on its axis by 23.5 degrees, as before. But, since the March 11 earthquake, Earth is spinning faster than before, and our day is ever so slightly shorter from sunrise to sunset. This change is so small that sophisticated instruments cannot detect it. Instead, a team of scientists at NASA's Jet Propulsion Laboratory calculated the change in Earth's rate of spin, using computers and earthquake data.... Read the full story on TreeHugger






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