Name Emile Bertrand | ||
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Émile Bertrand (1844–1909) was a French mineralogist, in honour of whom bertrandite was named by Alexis Damour. He also gave his name to the Bertrand lens or phase telescope.
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He studied at the Ecole des Mines in Paris and was a co-founder of the Société française de Minéralogie. He wrote a book on the application of microscopy to mineralogical studies, "De l'Application du microscope à l'étude de la minéralogie" (1878); published a translation of Ernst Mach's work on the history of mechanics, "La mécanique: exposé historique et critique de son développement" (1904); and is credited with the design of a refractometer.
mile bertrand hd by the united steel workers of montreal
References
Émile Bertrand Wikipedia(Text) CC BY-SA