You can't read Romeo and Juliet without mentioning William Shakespeare; You can't analyze the Mona Lisa without talking about Leonardo DiVinci. Likewise, when studying Physics, Forces, and Newton's Laws, you can not do so without knowing a little about the man behind the magic: Sir Isaac Newton.
Sir Isaac Newton was an English scientist and mathematician who was born into a poor farming family in 1642. Luckily for humanity, Newton was not a good farmer and was sent to Cambridge University to study to become a preacher. Cambridge is where Newton got his first taste of mathematics. He studied there until it was closed because of the plague, but went on to conduct private studies, making some of his most significant discoveries. However, Newton did publish any of these results until quite a while later.
Newton's first book, Philosophiae Naturalis Principia Mathematica[what a mouthful!] was finally published in 1687. It is in Principia that we first see the definitions and the famous three laws of motion now known as Newton's Laws. The rest of this revolutionary book consists of Newton's new scientific philosophy[which replaced Cartesianism] and applications of his dnyamics, including an explanation for tides and a theory of lunar motion. Newton's equations also described the motion of the moon by successive approximations and correctly predicted the return of Halley's Comet.
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