An Axial Force Engine.

If the axial force exists, and KeV right handed neutrino swarm around heavy neuclei, to cancel out the axial charge. Then an Engine releasing heat engine, is possible. The main material used would be a salt of heavy elements, e.g. Barium Iodide, that releases heat on mixing with water. In Axial Force Theory part of the heat comes from the fact that heavy right handed neutrinos, HRHN, surround the heavy element, while anti-HRHN surround the hydrogen in water. On solution, the anti and regular neutrinos annhilate release axi-photons that a absorbed by other neucli and become heat energy. The solvated water and salt, can then be allowed to dry out, during drying background neutrinos are absorbed into water and anti-neutrinos into the salt. The process may then repeat. Thus an engine formed, that creates heat energy from background cosmic neutrinos.

MiniBoone experiment finds 4.7 Sigma Excess of electron neutrions where muon neutrino expected

This papger, explains it by the decay of around 100MeV right handed neutrinos to a left handed electron neutrinos via a axion like particle (spin 0 Boson), MiniBoone Excess Paper more detail to come