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Universe has more entropy than thought

Posted on Saturday, October 10 2009 @ 15:35:57 CEST by

Science News reports new calculations indicate scientists have underestimated the entropy of the universe by a factor of 100x. However, the new value is still a billionth of a billionth of the maximum possibly entropy that researchers have estimates.
A new calculation of entropy upholds that general result but suggests that the universe is messier than scientists had thought — and slightly further along on its gradual journey to death, two Australian cosmologists conclude.

An analysis by Chas Egan of the Australian National University in Canberra and Charles Lineweaver of the University of New South Wales in Sydney indicates that the collective entropy of all the supermassive black holes at the centers of galaxies is about 100 times higher than previously calculated. Because supermassive black holes are the largest contributor to cosmic entropy, the finding suggests that the entropy of the universe is also about 100 times larger than previous estimates, the researchers reported online September 23 at arXiv.org.



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