You can run a Stirling engine on much lower temperature differentials: https://e...

		GregBuchholz on Sept 5, 2017 \| parent \| context \| favorite \| on: Efficient Air-Conditioning Beams Heat into Space You can run a Stirling engine on much lower temperature differentials: https://en.wikipedia.org/wiki/Applications_of_the_Stirling_e... https://www.amazon.com/Three-Stirling-Engines-Without-Machin...