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irreversibility

Water Runs Uphill – I Think Not

By Energy Efficiency, Energy Rant, Stimulus, Tax Stuff No Comments
This week – a little diversion into engineering.  Go ahead.  Shake those goose bumps out. There are three universal laws of thermodynamics but I’m not going to explain them all now or you might fall asleep and hit your head on the table.  I will only cover one of them. A law is essentially a theory of something that has never been disproven.  One of these laws indicates the direction of all processes.  Heat travels from hot to cold.  Water runs downhill.  However, heat can travel from cold to hot and water can go up hill if you add energy. …
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