mathematician

Joseph Fourier

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Joseph Fourier (21 March 1768 – 16 May 1830) was a French mathematician and physicist and best known for initiating the investigation of Fourier series and their applications to problems of heat transfer and vibrations. The Fourier transform and Fourier’s law are also named in his honour.

Isaac Newton

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Sir Isaac Newton,(died March 31, 1727) was English physicist and mathematician. In optics, he discovered the composition of white light. In mechanics, his three laws of motion, the basic principles of modern physics, resulted in the formulation of the law of universal gravitation.