I'm pretty sure you're thinking of Johannes Kepler.
Johannes Kepler
Johannes Kepler
Johannes Kepler.
Kepler a+
ellipses, with the sun at one focus of the ellipse
Johannes Kepler
Tycho Brahe
It gave a strong proof of heliocentric saying earth revolves around the sun and not vice-versa.
Kepler was Brahe's assistant. He continued to analyze Brahe's data after Brahe's died. Kepler determine that the planets revolve around the sun in elliptical, or ovalshaped, orbits. He also developed three laws that describe planetary motion. These laws are still used today. Hope I explained this clearly(:
They are in the shape of an ellipse.
Kepler
Johann Kepler
ellipses, with the sun at one focus of the ellipse
Johannes Kepler
Johannes Kepler
Silicon Sandy
No. Kepler discovered the laws using Tycho Brahe's data.
Sir Isaac Newton was the first to develop the three laws of motion.
Mindboggling? They are "Laws of Planetary Motion". So I guess the answer is "motion".
Johannes Kepler
Isaac newton discovered the three principles of planetary motion