General Relativity2026-07-111 minarXiv:2607.10247expressGravity Looks SidewaysA lead sphere hangs above another lead sphere. According to the usual laws of gravitation, they attract each other exactly along the vertical — along the line connecting their centers.Ankit Kumar·Kelvin Tang Tee Tniam·Peng Chengxiaohe·Ng Li Yang·P. Arumugam·Tom Złośnik·Yen-Kheng Lim·Tomasz Paterekgravitational lensingEinstein field equationsAdam RiessAlan GuthAlbert Einsteinmodified gravitygravityspacetime curvaturegravitational potentialmagnetic field👍👎☆SimplePopularAdvanced