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Hace 16 horas · Rosalind Elsie Franklin (25 July 1920 – 16 April 1958) was a British chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite. Although her works on coal and viruses were appreciated in her lifetime, Franklin's contributions to the discovery of the structure ...
Hace 16 horas · Portland (/ ˈ p ɔːr t l ə n d / PORT-lənd) is a port city in the Pacific Northwest and the most populous city in the U.S. state of Oregon.Situated in the northwestern area of the state at the confluence of the Willamette and Columbia rivers, it is the county seat of Multnomah County, Oregon's most populous county.As of 2020, Portland's population was 652,503, making it the 26th-most ...
