What Is General Relativity?
A thorough explanation of Einstein's general theory of relativity: from the equivalence principle to curved spacetime, gravitational waves, black holes, and why GPS depends on it.
March 2025
June 2024
How Gravity Works: From Newton's Apple to Einstein's Curved Spacetime
How does gravity actually work? Explore Newton's law of gravitation, Einstein's general relativity, gravitational waves, and the unsolved mystery of quantum gravity.