Timo wrote:
Just hypothetical mind game. How small can we get.
Just don’t omit cooling… some applications favor simpler cooling methods than others.
Waterborne transport is easiest. Aircraft can jettison their waste heat into the airstream and can even get some of that energy back with careful design. Locomotives should be easier than road vehicles…
… spacecraft operate in an environment where radiating heat is the key. Different parameters than planet-based transport systems..
