| http://www.w3.org/ns/prov#value | - The key idea that Einstein got from, or read into, Mach, was that acceleration should be defined relative to a frame of reference that is dynamically determined by the configuration of the whole universe, rather than being fixed absolutely, as in Newton???s theory. [...] In Newton???s mechanics, the distinction between who is accelerating and who is moving uniformly is a property of an absolute ba
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