# Sir Isaac Newton

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Sir Isaac Newton was a famous physicist and mathematician of the late 17th and early 18th century. He was born and lived in England. Among his many achievements are the discovery that white light is made up of a rainbow of colours.

He also developed laws of motion that laid the foundation for modern physics, and helped us understand the laws of gravity. In maths, he contributed to developing the branch of mathematics we know as calculus. Some of his contributions included developing ways to work out the area under a curve, as well as slopes at specific points on a curve (an example of the application of this is found here).

In honour of all of these contributions to science and mathematics, the unit measurement for forces is called the Newton. One *Newton * or *N* is the amount of force needed to accelerate a mass of 1 kg at the rate of 1 m/_{s2}.