Mary Somerville. Though known mainly for her mathematics work, she also wrote on other scientific topics. One of her books is credited with inspiring John Couch Adams to search for the planet Neptune. She wrote about “celestial mechanics” (astronomy), general physical science, geography, and molecular and microscopic science applied to both chemistry and physics.
Pythagoras of Samos - c. 570 BC – c. 495 BC was an Ionian Greek philosopher, mathematician, and founder of the religious movement called Pythagoreanism. He is revered as a great mathematician, mystic and scientist, but he is best known for the Pythagorean theorem :In any right-angled triangle, the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares whose sides are the two legs (the two sides that meet at a right angle).