Before revision: Newton (1642–1727) derived the motion of the planets from Copernicus' (1473–1543) simplification, that the sun is the center of our solar system ; Kepler (1571–1630) compressed thousands of measurements into one expression to finally conclude that Mars moves in an elliptical orbit about the sun ; Galileo (1564–1642) repeated one hundred specific experiments into the law of falling bodies.
After revision: Newton (1642–1727) derived the motion of the planets from Copernicus' (1473–1543) simplification, that the Sun is the center of the Solar System ; Kepler (1571–1630) compressed thousands of measurements into one expression to finally conclude that Mars moves in an elliptical orbit about the Sun ; Galileo (1564–1642) repeated one hundred specific experiments into the law of falling bodies.