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# What is Isaac Newton famous for?

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Isaac Newton, a prominent mathematician and physicist, is famous for discovering several laws and theories of physics and motion that are collectively known as Newton's Laws. The laws that he is most famous for are the first, second and third laws of motion and the universal law of gravity.

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Credit: Andrea Ciambra CC-BY 2.0

Pictures of Isaac Newton often show him near an apple tree, as he began research for one of his discoveries, the universal law of gravity, after watching an apple fall from a tree. The cause and effect of gravity served as the basis for most of his theories. The universal law of gravity explains how every particle has a gravitational force that is proportional to the mass of the particle and is dependent on the distance between particles.

Newton's well-known first law of motion explains how force is constant unless an external force is applied. The second law of motion is the mathematical equation F = MA. This equation is used to calculate the mass, acceleration and force of an object. The third law of motion famously states, "for every action, there is an equal and opposite reaction."

These theories and several others were published in Newton's book titled "Principia," which was published in 1687. In addition to theoretical discoveries, Newton made improvements to the telescope by adding mirrors to it.

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## Related Questions

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Sir Isaac Newton received 9 honors between 1665 and 1703. His first honor was a Bachelor of Arts from Trinity College in Cambridge in 1665.

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Sir Isaac Newton receives recognition for his contribution to the sciences, particularly astronomy and physics as well as introducing thoughts and theories in the field of mathematics. Sir Isaac Newton was born in 1643 in England to a prominent farming family. Newton excelled in academics, especially the fields of math and science, and ultimately enrolled at Cambridge University in 1661 to study math, physics and astronomy.

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Isaac Newton created several theories and laws that explain how movement and gravity work. His three most prominent theories are often referred to as Newton's laws or simply as the laws of motion. These laws all involve the effects of gravity and force on motion. These theories were published in a book titled "Principia" in 1687.