Johannes Kepler

Johannes Kepler was an important part of the Scientific Revolution during the seventeenth century for his discoveries such as his laws of planetary motion.This wouldn't be without the foundation of his works Astronomia nova, Harmonices Mundi, and Epitome of Copernican Astronomy. His discoveries would lead to one of the principals for Isaac Newton's theory of universal gravitation. Kepler was a mathematics teacher at a seminary school in Graz,the location that he became an associate with Prince Hans Ulrich von Eggenberg. Afterwards he became an apprentice with Tycho Brahe.

Apprenticeship with Tycho Brahe, and other things.
In Prague, he went under the apprenticeship of Tycho Brahe. Eventually he became the imperial mathematician to Emperor Rudolf II and his two successors Matthias and Ferdinand II. He was also a teacher of mathematics in Linz, and was an adviser to General Wallenstein. Additionally, he did made important discoveries in the field of optics, invented an makeshift variant of the refracting telescope (dubbed the Keplerian telescope), and was mentioned in the telescopic discoveries of Galileo Galilei, who lived in the same time period. He was a corresponding member of the Accademia dei Lincei, a science academy, in Rome.