Jean Baptiste Perrin

Jean Baptiste Perrin ForMemRS (30 September 1870 – 17 April 1942) was a French physicist who, in his studies of the Brownian motion of minute particles suspended in liquids (sedimentation equilibrium), verified Albert Einstein's explanation of this phenomenon and thereby confirmed the atomic nature of matter. For this achievement he was honoured with the Nobel Prize for Physics in 1926.

For the tutor and educational author, see Jean Baptiste Perrin (fl. 1786). For the Swiss composer, see Jean Perrin (composer). For the IT entrepreneur, see Jean Georges Perrin.
Jean Baptiste Perrin
Perrin in 1926
Born(1870-09-30)30 September 1870
Lille, France
Died17 April 1942(1942-04-17) (aged 71)
New York City, U.S.
NationalityFrench
Alma materÉcole Normale Supérieure
University of Paris
Known forNature of cathode rays
Brownian motion
Avogadro constant
Sedimentation equilibrium
Perrin friction factors
ChildrenFrancis Perrin
AwardsMatteucci Medal (1911)
Fellow of the Royal Society (1918)
Nobel Prize in Physics (1926)
Scientific career
FieldsPhysics
InstitutionsÉcole Normale Supérieure
University of Paris
Signature
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