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# What did Isaac Newton do to become famous?

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Isaac Newton became famous for his numerous contributions to science and mathematics, most notably his discovery and outlining of the laws of motion in physics and the invention of calculus in mathematics. Newton published various works that became well known among scholars during his lifetime, and his influence continued to remain significant centuries after his death.

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The basic laws of motion discovered by Newton centuries ago still hold value for those studying physics. The laws of motion describe the relationship between an object and the forces acting upon it, and how these forces affect the motion of the object. There are three laws of motion described by Newton: an object at rest remains at rest unless acted on by an external force, or an object in motion remains in motion unless acted on by an external force; the motion of an object changes proportionally to the force applied, where force equals mass times acceleration; and when one object acts upon a second object, the second object simultaneously reacts with an equal amount of force in a direction opposite to the first object.

Isaac Newton is also credited with inventing calculus, which he used in calculating the motion of celestial bodies in his studies. However, another mathematician, Leibniz, also published works about calculus during the same time period, so a controversy exists as to which person should be credited with its invention. Since both men used different methods to develop similar ideas regarding calculus, it's generally accepted that both men developed an understanding of calculus independent of each other.

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## Related Questions

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Calculus was developed independently by both Isaac Newton and Gottfried Leibniz during the later part of the 1600s. For Newton, calculus was primarily a tool he needed for explaining the motion of the planets. It would be difficult to say precisely how he developed his ideas because he was secretive about his methods, but it certainly grew out of his understanding of the laws of motion and acceleration.

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Isaac Newton's greatest contribution to science was his universal law of gravitation, in which he described the laws of gravity after seeing an apple from a tree. According to Encyclopædia Britannica, Newton's law of gravitation suggests that bigger masses attract more strongly and that the distance between masses affects the amount of gravity experienced by each mass, reducing by the square of the distance.

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Sir Isaac Newton had one younger half-brother and two younger half-sisters. His father died before Newton was born, and his mother remarried when he was two years old.

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Isaac Newton made many discoveries in multiple fields of science, including the discoveries of gravitational force and the three universal laws of motion. Although it is not accurate, Newton is often said to have discovered gravity when an apple fell on his head from a tree.