Sir Isaac Newton, an Englishman who lived in the 17th century, is scientific legend. He came up with numerous theories and contributed ideas to many different fields including physics, mathematics, and philosophy.
In 1687, Newton published his book philosophiae Natural is principia mathematica. In it, he describes universal gravitation, and the three laws of motion. It is widely regarded to be one of the most important books in the history of science. It is well known that his work on formulating a theory of gravitation was inspired by watching an apple fall from a tree!
During his lifetime, Newton developed a new type of mathematics called calculus, and made breakthroughs in the area of optics such as the reflecting telescope. He also discovered that white light is made up of a wide range of different colors.
Newton was a deep thinker with an insatiable curiosity to know everything about everything he saw. His contributions are so numerous, that e changed forever the way in which we look at the world.