How about a huge black hole.. billions of solar masses.. besides having much more gravity, it it going to be the same 'size' at a much less massive black hole. Thanks.
OK so some stars evolve into neutron stars which I assume are so small (10's of kms) because ALL empty space is removed between the atoms.. absolute highest density possible?
Now.. is a black hole larger (massive and in diameter) than a neutron star and called a black hole only because the...
OK.. my question I've pondered in the past.. why is E=MC2 such a nice and clean formula.. with no corrections or " x .00003845" etc.
Was metric based on the universe (physics) or is the universe somehow based on metric?