Sir Isaac Newton was an English physicist and mathematician. He discovered that white light was composed of many colors, and created his three laws of motion. He also discovered infinitesimal calculus in mathematics.
Galileo was a Italian natural philosopher, astronomer, and mathematician. He discovered many things, including the craterous qualities of the moon. He encouraged the Copernican heliocentric theory until the church put him under house arrest and forced him to rescind his word.
Francis Bacon was an Engilsh philosopher and statesman. He served as Lord Chancellor of England. He is best known for the creation of the scientific method during the Scientific Revolution.