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Pastimes : Evolution - Moderated
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From: 2MAR$2/14/2015 11:12:12 PM
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"Physical objects are not in space, but these objects are spatially extended (as fields). In this way the concept 'empty space' loses its meaning. ...
The field thus becomes an irreducible element of physical description, irreducible in the same sense as the concept of matter (particles) in the theory of Newton. ...
The physical reality of space is represented by a field whose components are continuous functions of four independent variables - the co-ordinates of space and ti...me.
Since the theory of general relativity implies the representation of physical reality by a continuous field, the concept of particles or material points cannot play a fundamental part, nor can the concept of motion.
The particle can only appear as a limited region in space in which the field strength or the energy density are particularly high."
– Albert Einstein, Metaphysics of Relativity, 1950
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