General Relativity2026-06-192 minarXiv:2606.21603expressGravity, Electricity, and a Hidden HarmonyIn the early 20th century, Einstein showed that gravity is the curvature of space and time. A bit earlier, Maxwell had unified electricity and magnetism into a single theory.Bardia H. Fahim·Joshua G. FenwickEinstein field equationsAdS/CFT correspondenceAlbert EinsteinBernhard RiemannJoseph Weberspacetime curvaturegravitational singularitygravityquantum gravitysingularity👍👎☆SimplePopularAdvanced