Home > Science > What Did Einstein Mean By Curved Spacetime? What Did Einstein Mean By Curved Spacetime? Science Share on Pinterest Two physicists explain one of the basic principles in Einstein’s general theory of relativity. Share on Pinterest Related Posts The Higgs Boson (How Small Is It Series #4) Elementary Particles (How Small Is It Series #3) General Relativity – The Curvature Of Spacetime Is Every Electron In The Universe The Same Electron? What Is A Photon?