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Aug 4, 2016 at 7:18 comment added Jean Marie Becker Pardon me, but I wouldn't call this example a "physical analogy" : I would consider it as a purely mathematical property that comes from 2 different ways for computing a barycenter (=centre of mass)
S Sep 14, 2014 at 14:55 history answered Michael CC BY-SA 3.0
S Sep 14, 2014 at 14:55 history made wiki Post Made Community Wiki by Michael