-
240 BCE
Eratosthenes
He devised a system of longitude and latitude, and created a calendar that included a leap year -
150 BCE
Claudius Ptolemy
He compiled a star catalog and the earliest surviving table of trigonometric function -
1500
Tycho Brahe
Brahe found irregularities in the moon's orbit, and discovered a star in the Cassiopeia formation. He also invented instruments such as the tyconian quadrant which led to the development of more advanced observation equipment -
1543
Nicolaus Copernicus
He discovered that every planet revolves around the sun, he also discovered that the earth rotates daily on it's axis -
Johannes Kepler
discovered the three major laws of planetary motion -
Sir isaac Newton
Sir Isaac Newton invented calculus, and developed the formutation of the three laws of motion. -
Albert Einstein
Observation of a solar eclipse proved that Einsteins prediction that light is bent in the presence of mass