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The trouble is in sheer mass that is needed to be transported. Lets say you want to make a cup of tea. To heat cup of water you need Q=cmdT, having m=0,2 kg; dT=85'C;c=4200 kJ/kg'C gives amount of 71400 Joules. Thats equivalent of rising 1 ton concrete block into height of 7 meters!
For any practical implementation you need to literally move mountains. Real time.
Last edited by seifrob; 11-08-2018 at 03:53 PM..
Reason: grammar
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