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22 de jul. de 2024 · Sir Sandford Fleming FRSC KCMG (January 7, 1827 – July 22, 1915) was a Scottish Canadian engineer and inventor. Born and raised in Scotland, he emigrated to colonial Canada at the age of 18.
6 de jul. de 2024 · La Guerra del Pacífico, que tuvo lugar entre Chile, Perú y Bolivia entre 1879 y 1884, fue un conflicto que alteró el destino de varias naciones sudamericanas y dejó cicatrices perdurables hasta...
Hace 2 días · Lecture 7 Genetics. 2Beginnings of the Chromosome Theory • In 1879, Walther Flemming discovered chromosomes – “stainable material” which he called “mitosen” in nuclei of salamander cells • He described their behavior with drawings of these threadlike structures during the cell division process – Noted that the threads split ...
9 de jul. de 2024 · Para eso fue preciso esperar al descubrimiento de los gérmenes. Únicamente entonces fue posible crear vacunas contra enfermedades como la diarrea crónica intestinal grave (1879), el ántrax (1881), la rabia (1882), el tétanos (1890), la difteria (1890) o la peste (1897).
Hace 3 días · En 1968, Flemming y su equipo de Cambridge revelaron una antigua ciudad sumergida, Pavlopetri. Mediante excavaciones detalladas, documentaron una compleja red de edificios, calles y tumbas que...
18 de jul. de 2024 · Sir Sandford Fleming was a civil engineer and scientist who was the foremost railway engineer of Canada in the 19th century. Fleming emigrated in 1845 from Scotland to Canada, where he was trained as an engineer. By 1857 he had become chief engineer for the Ontario, Simcoe, and Huron Railway (now.
2 de jul. de 2024 · Rudolf Albert von Kölliker (born July 6, 1817, Zürich, Switz.—died Nov. 2, 1905, Würzburg, Ger.) was a Swiss embryologist and histologist, one of the first to interpret tissue structure in terms of cellular elements.
