Isaac Newton (1642-1727) was an English physicist and mathematician. One of his most famous accomplishments was formulating the theory of gravity. [millionth doctor|The Doctor]] once claimed that he sat in Newton's tree dropping apples onto his head, then explained gravity to him over dinner. (DW: The Pirate Planet). He is also known for his quote:
- "For every action, there is an equal and opposite reaction."
This quote lead Romana to believe that Newton invented punting hi! OW . (DW: The Five Doctors)
