Maurice d'Ocagne

(1862/1938)

French mathematician. Member of the Academy of Sciences (1922). He is credited with nomography, which aims to replace numerical calculations in a completely general way, through graphical representations (abacus and nomograms).

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Marius Dalloni

(1880/1959)

Geologist, professor of applied geology at the Faculty of Sciences of the University of Algiers, president of the Institute of Saharan Research. Member of Parliament for Algiers (1946).

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Benoit Henry Darondeau

(1805/1869)

A sailor and hydrographic engineer, he took part in Vaillant's circumnavigation voyage on the Bonite in 1836-1837, and wrote the 4 volumes of physical observations.

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Auguste Daubrée

(1814/1896)

Géologue, minéralogiste, membre de l’Académie des sciences (1861) dont il devient le président (1879), professeur de géologie au Muséum, spécialiste des météorites, on lui doit un important travail sur le métamorphisme.

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Humphry Davy

(1778/1829)

Physicien et chimiste britannique. Il isola le sodium, le potassium, le baryum, le strontium, le calcium et le magnésium grâce à l’électrolyse.

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