Tag
#mechanics
3 articles
Physics
Kepler's Laws of Planetary Motion
How Kepler's stubborn refusal to ignore a tiny discrepancy in Mars's orbit produced three laws that Newton later derived from a single inverse-square force.
10 minJul 14, 2026
Physics
Time Dilation
How Einstein's special relativity predicts that time passes differently for observers in relative motion.
9 minMay 25, 2026
Physics
The Pendulum
Why a pendulum keeps perfect time at small angles — and breaks down at large ones.
9 minApr 8, 2026