Tag
#spacetime
2 articles
Physics
General Relativity: Gravity as Curved Spacetime
Einstein's 1915 theory recasts gravity as the curvature of spacetime: mass-energy bends geometry, objects follow geodesics, and clocks, light, and GPS all obey.
10 minAug 19, 2026
Physics
Time Dilation
How Einstein's special relativity predicts that time passes differently for observers in relative motion.
9 minMay 25, 2026