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Published online by Cambridge University Press: 03 November 2016
L’étude approfondie de la nature est la source la plus féconde des découvertes mathématiques. Non seulement cette étude, en offrant aux recherches un but déterminé, a l’avantage d’exclure les questions vagues et les calculs sans issue, elle est encore un moyen assuré de former l’analyse elle-même, et d’en découvrir les éléments qu’il nous importe le plus de connaître, et que cette science doit toujours conserver. Fourier
Page 250 of note * But see the following extract from the Mathematical Gazette for January, 1640:
Ye Pillorie
Lord Rutherford, J. Chadwick and C. D. Ellis, Radiations from Radioactive Substances, p. 200.
“Column VII shows that N × A 2/3, where A is the atomic weight, is constant for the elements examined, i.e. that the scattering per centimetre air equivalent is proportional to A 3/2.”