How to Understand Earth’s Roundness with Simple Experiments
Proving Earth’s roundness doesn’t require fancy gear—just simple observations and experiments anyone can try. These methods, inspired by ancient Greeks and modern tests, use shadows, horizons, and stars to show curvature. ‘Eratosthenes’ Stick Shadow Test to Prove Earth’s Roundness Place two sticks vertically in the ground about 800-1000 km apart (e.g., Hyderabad to Chennai), ideally…