Reading the book called "The great design particles fields and creation" one finds the following paragraph
In a universe like ours, constructed of electrically charged elements, magnetism and the magnetic field can be considered a relativistic consequence of the electric field. If the speed of light were infinite, or if all charges moved very slowly, there would be no magnetic field and no magnetism. But in the universe we live in, where the speed of light is finite and electrical charges do move, magnetic fields accompany electric fields. The other vector fields associated with weak and strong nuclear forces have similar magnetic counterparts that derive from relativistic effects
Does gravity have such a counter part?
if not why, if yes what is it called?
The book does not explain why such a speed limit produces magnetic fields, can some one explain?