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144 pages, Hardcover
Published September 27, 2007
There is a celebrated theorem, Noether’s the- orem, proposed by the German mathematician Emmy Noether (1882–1935), which states that to every conservation law there corresponds a symmetry. Thus, conservation laws are based on various aspects of the shape of the universe we inhabit. In the particular case of the conservation of energy, the symmetry is that of the shape of time. Energy is conserved because time is uniform: time flows steadily, it does not bunch up and run faster then spread out and run slowly. Time is a uniformly structured coordinate. If time were to bunch up and spread out, energy would not be conserved.
Another challenge, to which we shall return, is to explore whether it is possible— and even meaningful—to cool matter to temperatures below absolute zero of temperature; to break, as it were, the temperature barrier.I’d never thought about coming from the other side...sort of like the other side of the Big Bang singularity, I guess.