english: So he imagined that the world had four dimensions of space, not three, and imagined that electromagnetism was warps and curves in that fourth dimension. Now here's the thing: when he wrote down the equations describing warps and curves in a universe with four space dimensions, not three, he found the old equations that Einstein had already derived in three dimensions -- those were for gravity -- but he found one more equation because of the one more dimension.
non_english: Zato si je zamislil, da ima svet štiri dimenzije, ne tri, in si je zamislil, da je elektromagnetizem zvijanje in ukrivljanje v tej četrti dimenziji. Zanimivo je pa to: ko je zapisal enačbe, ki so opisovale zvijanje in ukrivljanje v vesolju s štirimi prostorskimi dimenzijami, ne tremi, je našel stare enačbe, ki jih je Einstein že izpeljal v treh dimenzijah - te so bile za gravitacijo - pa še eno enačbo zaradi dodatne dimenzije.