Sanity

     Sir Isaac Newton was born in England in 1642 as a premature baby that would eventually grow into the arguably greatest scientist to live thus far (LiveScience).  Legend has it that Newton was motivated to figure out gravity because of an apple falling on his head.  Whether or not that is true, he solved many puzzles and one of them happened to be gravity.  Newton is mostly known for his concepts of universal gravitation, centrifugal force, centripetal force, and the famous laws of motion (LiveScience).  According to Jerry Coffey for Universal Today, Newton wrote a book about his inventions and concepts in mechanics and gravitation called Principia. He explains that this was a 3 volume work describing Newton's laws of motion and explaining universal gravitation. In Principia, Newton also covers fluid motion and explains Kepler’s laws of planetary motion (Coffey).  Additionally, Sir Isaac Newton discovered that by the use of a prism, one could separate white light into various colors, which is known as the corpuscular theory of light (Coffey).

     Newton's laws of motion are the prominent laws that are required to be taught in most science classes today:

1. "Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it" (Astronomy 161).

2. "The relationship between an object's mass m, its acceleration a, and the applied force F is       F = ma" (Astronomy 161).

3. "For every action there is an equal and opposite reaction" (Astronomy 161).