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Charles-Edouard Guillaume was born at Fleurier, in the Swiss-Jura, on February 15, 1861. His grandfather had left France for political reasons during the Revolution and established a watchmaking business in London. The business was carried on by his three sons but Charles’ father, Édouard, eventually returned to settle in Fleurier. Guillaume received his early education…

Presentation Speech by Dr. A.G. Ekstrand, President of , on December 10, 1920 Your Majesty, Your Royal Highnesses, Ladies and Gentlemen. The Swedish Academy of Sciences has decided to award the Nobel Prize for Physics 1920 to Ch.E. Guillaume, Director of the International Bureau of Weights and Measures, for the services he has rendered to…

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