Heart Definition and 152 Threads

Powering and artificial heart?? Is there any way that one can construct a heat exchanger that concentrates the energy from heat into a smaller space? Eg a big plate at a certain temperature which concentrates heat into a higher temperature in a smaller area. I'm thinking not. If you can't, is...

The Nuclear Heart of the Earth or the scientific version: Nuclear georector origine of oceanic basalt 3He/4He, evidence and implications There are a few far fetched hypotheses and perhaps some flaws, I would say, but other than that, some good explanations for existing evidence. What...