Abstract
COPLEY MEDAL THE COPLEY MEDAL has been awarded to Prof. PAUL LANGEVIN. Prof. Langevin was one of the band of young pioneers who, in the closing years of the last century, were engaged in exploring the field which had been opened up by J. J. Thomson's discovery of the electron. He spent a year (1897–98) at the Cavendish Laboratory, and his Paris Dr. ès So. thesis (1902) is dedicated to J. J. Thomson. The thesis, a notable one, was entitled “Recherches sur les Gaz Ionisés”. It dealt mainly with the recombination and mobilities of ions, their coefficients and the relations between them. It is a standard work on this subject. In it he also devised and applied new and elegant methods of measuring these quantities which were an advance on all their predecessors and have not since been improved upon to any appreciable extent. Related to this, and coming later, were important contributions to the theory of the diffusion of gaseous ions and its relation to ionic mobilities.
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Medal Awards of the Royal Society. Nature 146, 750–752 (1940). https://doi.org/10.1038/146750a0
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DOI: https://doi.org/10.1038/146750a0