Résultats de recherche
Il y a 5 jours · Début. Des origines à la fin de la Gaule romaine. Le Moyen Âge et la formation de la France. L'Époque moderne. La période révolutionnaire. Le XIXe siècle de 1814 à 1870. XIXe. La Troisième République de 1870 à 1940. D'une guerre à l'autre. La France depuis 1945. Historiographie. Notes et références. Voir aussi. Histoire de France.
Il y a 5 jours · Tableau de Champollion, comparant des caractères hiéroglyphiques phonétiques et leurs équivalents en démotique et en copte (1822). En 1814, Young a un premier échange de correspondance à propos de la pierre de Rosette avec Jean-François Champollion , professeur à Grenoble , qui vient de produire un ouvrage savant sur l ...
Il y a 5 jours · Louis Pasteur ForMemRS (/ ˈ l uː i p æ ˈ s t ɜːr /, French: [lwi pastœʁ]; 27 December 1822 – 28 September 1895) was a French chemist, pharmacist, and microbiologist renowned for his discoveries of the principles of vaccination, microbial fermentation, and pasteurization, the last of which was named after him.
Il y a 5 jours · Louis Pasteur (born December 27, 1822, Dole, France—died September 28, 1895, Saint-Cloud) was a French chemist and microbiologist who was one of the most important founders of medical microbiology. Pasteur’s contributions to science, technology, and medicine are nearly without precedent.
- Agnes Ullmann
- Among Louis Pasteur’s discoveries were molecular asymmetry, the fact that molecules can have the same chemical composition with different structure...
- Louis Pasteur is best known for inventing the process that bears his name, pasteurization. Pasteurization kills microbes and prevents spoilage in b...
- Pasteurization is a heat-treatment process that destroys pathogenic microorganisms in certain foods and beverages. It is used for preserving goods...
- Louis Pasteur grew up in a relatively poor family. He was one of four children, and his father was a tanner. In 1849 he married Marie Laurent, the...
Il y a 2 jours · Harriet Tubman (born Araminta Ross, c. March 1822 – March 10, 1913) was an American abolitionist and social activist. [2] [3] After escaping slavery , Tubman made some 13 missions to rescue approximately 70 enslaved people, including her family and friends, [4] using the network of antislavery activists and safe houses known ...
17 mai 2024 · Battle of Pichincha, (May 24, 1822), in the Latin-American wars of independence, a victory by South American rebels, commanded by Antonio José de Sucre, over the Spanish royalists on the lower slopes of Cerro Pichincha, an Andean volcano. It enabled the rebels to occupy nearby Quito, Ecuador, the following day.
Il y a 4 jours · Babbage began in 1822 with what he called the difference engine, made to compute values of polynomial functions. It was created to calculate a series of values automatically. By using the method of finite differences, it was possible to avoid the need for multiplication and division.
