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Hace 3 días · In 1820, the Spanish royal army brigadier Agustín de Iturbide changed sides and proposed independence, issuing the Plan of Iguala. Iturbide persuaded insurgent leader Vicente Guerrero to join this new push for independence.
Hace 5 días · First practical means of collecting energy from the Sun and turning it into a current of electricity. 1955: The hovercraft is patented by Christopher Cockerell. 1955: The intermodal container is developed by Malcom McLean. 1957: The laser and optical amplifier are invented and named by Gordon Gould and Charles Townes.
Hace 3 días · 1820 Savannah yellow fever epidemic 1820 Savannah, Georgia, United States Yellow fever: 700 1821 Barcelona yellow fever epidemic 1821 Barcelona, Spain Yellow fever: 5,000–20,000 Second cholera pandemic: 1826–1837 Asia, Europe, North America Cholera: 100,000+ 1828–1829 New South Wales smallpox epidemic 1828–1829
15 de abr. de 2024 · Hans Christian Ørsted (1777-1851) fue un físico y químico danés, conocido por determinar la primera conexión entre las corrientes eléctricas y los campos magnéticos. Sus estudios experimentales inspiraron a otros científicos contemporáneos, como André-Marie Ampère y Michael Faraday, a desarrollar contribuciones en el campo del electromagnetismo.
3 de abr. de 2024 · Rankine temperature scale. steam engine. William John Macquorn Rankine (born July 5, 1820, Edinburgh, Scot.—died Dec. 24, 1872, Glasgow) was a Scottish engineer and physicist and one of the founders of the science of thermodynamics, particularly in reference to steam-engine theory.
- The Editors of Encyclopaedia Britannica
18 de abr. de 2024 · Daniel Boone (born c. November 2, 1734, Berks county, Pennsylvania [U.S.]—died c. September 26, 1820, St. Charles county, Missouri, U.S.) was an early American frontiersman and legendary hero who helped blaze a trail through Cumberland Gap, a notch in the Appalachian Mountains near the juncture of Virginia, Tennessee, and Kentucky.
10 de abr. de 2024 · Herbert Spencer (born April 27, 1820, Derby, Derbyshire, England—died December 8, 1903, Brighton, Sussex) was an English sociologist and philosopher, an early advocate of the theory of evolution, who achieved an influential synthesis of knowledge, advocating the preeminence of the individual over society and of science over religion.
