- #1
exponent137
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It is known, that perpetum mobile of the second kind does not exist. This means, ff temperature is everywhere the same, the work cannon be obtained from heat. But temperature is not uniform anywhere.
Let us assume that we have very small cheap heat engines. How much energy can they get from, for instance, one usual room. Are T variations in such a room useful or not, for such theoretical small cheap heat engines?
Is this topic analysed in physics?
Let us assume that we have very small cheap heat engines. How much energy can they get from, for instance, one usual room. Are T variations in such a room useful or not, for such theoretical small cheap heat engines?
Is this topic analysed in physics?