I unfortunately do not know enough about the subject to tell which of those listed at wikipedia are rocket fuels, and I don't know if they are listing the rocket fuels specifically, or the fuel combined with the oxdidizer.
I am no expert, so forgive me if I sound rather ignorant, but I'm curious about this: are typical automobile fuels like gasoline, diesel and ethanol more energetic than, specifically, *chemical* rocket fuels [like perhaps the types used in missiles, space-bound rockets and such] if measured by...
How specifically are new protons created though? I don't know much about these subjects but I find it interesting to learn what I can...if its describable in simple terms, what are the processes to make new protons?
So, far in the future, some possible civilization could postpone their death from proton decay, by creating NEW protons if they had very advanced technology and a lot of energy? Of course they'd eventually run out of energy and die anyway, but, in such a hypothetical scenario, NEW proton...