What achievements was Isaac Newton most famous for in history?

Answer 1

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he founded the 3 laws of motion and he founded the theory of gravity.
He is most famous for his laws of motion, but he also invented a reflecting telescope and conducted many dangerous experiments on light. He was an amazing physicist, mathematician, theologian natural philosopher and alchemist and was buried at Westminster abbey. He is widely regarded as one of the most influential people in human history.
It's hard to say, but probably the "discovery" of gravity and his theory of Universal Gravitation. Newton's First, Second and Third laws are also very famous. Newton's First Law states that an object moving at a constant velocity or at rest will remain as it is unless acted on by a force. Newton's Second Law states that the acceleration of an object depends on its mass and the force acting on it (F = ma). Newton's Third Law states that for every force, there is an equal and opposite force exerted.

Newton is also famous for the invention of calculus.
Isaac newton was famous for the laws of Gravitation and motion. He invented a new branch of mathematics celled calculus, and reveal the secrets of light and color all in an eighteen month period.
Newton is famous for a number of things.

In physics he is famous for his notions of gravity and motion.

He is said to be the one who originated the idea of gravity. He created some equations to explain gravity and motion. And he also created the famous Laws of Motion which explains how and why moving bodies act the way they do.

In mathematics, Newton and Gregory Leibniz are both jointly credited for inventing calculus.