3 ms·
Even more, because all the energy is from "burning" H2 only, no Cs to burn. Whether or not visible contrails form is a separate question. Even transparent water
by someweirdperson 4y ago
Even more, because all the energy is from "burning" H2 only, no Cs to burn. Whether or not visible contrails form is a separate question. Even transparent water is highly efective outside of the visible range.