Johannes Kepler
Laws of planetary motion
German astronomer (1571-1630) who found the true shape of the planets' orbits.
Using Tycho Brahe's mountain of data, he proved orbits are ellipses, not perfect circles — cracking a 2,000-year-old assumption. A mystic at heart who also cast horoscopes and successfully defended his mother in a witchcraft trial.
Famous for
- Three laws of planetary motion
- Elliptical orbits
- Foundations for Newton's gravity
In Rubicon
Johannes Kepler is one of the historical characters you can play as in Rubicon, a trivia game where you answer in your own words and an AI judge reads what you meant. Johannes Kepler is filed under Natural Sciences, and is strongest at Earth & Space and Natural Sciences.
Others in Natural Sciences
- Isaac Newton — Laws of motion + calculus
- Marie Curie — Pioneered radioactivity
- Pythagoras — The Pythagorean theorem
- Euclid — Father of geometry
- Muhammad ibn Musa al-Khwarizmi — Founder of algebra
- Ibn al-Haytham (Alhazen) — Optics + the scientific method