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.
Zamislio je da svijet ima četiri prostorne dimenzija, a ne tri, i da je elektromagnetizam uvijanje i krivljenje u toj četvrtoj dimenziji. Pazite sad ovo: kad je napisao formulu koja opisuje uvijanje i krivljenje u svemiru s četiri prostorne dimenzije, a ne tri, dobio je stare formule koje je Einstein već izveo u tri dimenzije -- za gravitaciju -- ali je dobio još jednu formulu zbog dodatne dimenzije.