Michelson-Morley experiments and the postulates of SR.
Mastering Relativity: A Guide to the Best "300 Problems" Resources
Don't jump straight to the solutions. Spend at least 30 minutes struggling with a problem before checking the answer. The "aha!" moment in relativity usually happens during the struggle, not the reading. Michelson-Morley experiments and the postulates of SR
Both institutions offer massive PDF problem sets with solution keys that, when combined, easily exceed 300 problems. Finding the PDF Link
Move from basic Lorentz transformations to complex tensor calculus. The "aha
Why gravity feels like acceleration.
How E-fields and B-fields transform between frames. Phase 2: General Relativity (GR) Why gravity feels like acceleration
The Schwarzschild radius, gravitational lensing, and the Friedmann equations. Top Recommendations for Problem Sets
Special and General Relativity are often considered the twin peaks of theoretical physics. While the concepts—time dilation, length contraction, and the curvature of spacetime—are mind-bending, true mastery only comes through rigorous problem-solving.
Understand how "common sense" fails at high velocities or near massive objects.