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1: If you have the real estate available, then it is more efficient to have large, shallow ponds. This way you maximize the surface area that is irradiated by the sun. Thus, more heat is transferred to the water. 2: The pond layout you describe seems complex and it would definitely require some level of control. The simplest way is simply to fill the ponds ...


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When one encounters the statement "gapped systems have gravitational anomalies", I think the precise statement is that "gapped systems with bulk topological order (read the link Review) have boundary gravitational anomalies". So the answer to your question is yes, if we look into the surface of the bulk topological order. Three papers you may look at ...


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It is known from the tunneling of Cooper pairs through Josephson junctions / Squids that there are excitations in superconductors that (a) have charge exactly 2 electron charges and (b) are in a condensate. Thus, examining the oscillations in an AC Squid establishes that there are Cooper Pairs. It does not tell us about the symmetry or similar but does ...



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