atomism

Jean Baptiste Perrin and the Brownian Motion

Jean Baptiste Perrin and the Brownian Motion

On September 30, 1870, French physicist Jean Baptiste Perrin was born. In his studies of the Brownian motion of minute particles suspended in liquids, Perrin verified Albert Einstein’s explanation of this phenomenon and thereby confirmed the atomic nature of matter. In 1897, Jean Baptiste Perrin earned his PhD and was appointed lecturer at Sorbonne, Paris. Perrin was announced professor at the university in 1910 and held the position until the German occupation…
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