Template:Selected anniversaries/July 3: Difference between revisions

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File:Jean-Jacques Rousseau.jpg|link=Jean-Jacques Rousseau (nonfiction)|1777: Philosopher and author [[Jean-Jacques Rousseau (nonfiction)|Jean-Jacques Rousseau]] warns that "the Enlightenment itself, built as it is on the certainties of mathematics and logic, now stands in peril from the generation of [[math criminals]] now coming of age."
File:Jean-Jacques Rousseau.jpg|link=Jean-Jacques Rousseau (nonfiction)|1777: Philosopher and author [[Jean-Jacques Rousseau (nonfiction)|Jean-Jacques Rousseau]] warns that "the Enlightenment itself, built as it is on the certainties of mathematics and logic, now stands in peril from the generation of [[math criminals]] now coming of age."
||1782: Pierre Berthier born ... mineralogist and mining engineer who discovered bauxite (aluminium ore) on 23 Mar 1821 near the village Les Baux de Provence in southern France. On 24 May 1806, he joined the central laboratory at the Board of Mines. From 1816, he was chief of the laboratory at the École des Mines, and professor of assaying. Berthier analyzed kaolin along with dozens of other minerals and ores. He sought out phosphate deposits valuable for agriculture. He published a treatise (1834) of practical analytical procedures that were widely used by other mineralogists. In another field, Berthier noticed - before Mitscherlich - that isomorphism occurred whereby chemically different substances can have the same crystalline form and even co-crystallize. Pic.


||1790 – Jean-Baptiste L. Romé de l'Isle, French geologist and mineralogist (b. 1736)
||1790 – Jean-Baptiste L. Romé de l'Isle, French geologist and mineralogist (b. 1736)

Revision as of 10:34, 19 August 2018