Web1912: l'astronoma statunitense Henrietta Swan Leavitt durante il suo studio sui periodi del ciclo luminoso-debole delle stelle Cefeidi, trova un metodo per calcolare la distanza di tali stelle dalla Terra. 1913: Izabela Textorisová, la prima donna botanica slovacca, pubblica Florisztikai dataky Turócz vármegyéből (trad.: WebHenrietta Swan Leavitt's parents were George Roswell Leavitt (1838-1911) and Henrietta Swan Kendrick (1844-1922). George Roswell Leavitt was a Congregationalist minister, …
7 femmes scientifiques qui ont changé le monde - National …
Web6 Sourced Quotes. It is worthy of notice that in Table VI the brighter variables have the longer periods. It is also noticeable that those having the longest periods appear to be as regular in their variations as those which pass through their changes in a day or two. Henrietta Swan Leavitt. Since the [Cepheid] variables are probably at nearly ... Web27 jan. 2016 · Biography. Henrietta Swan Leavitt was an astronomer who worked at the Harvard College Observatory at the turn of the twentieth century. Leavitt was born in in Lancaster, Massachusetts, in 1868 and grew up in Cleveland, Ohio. She attended Oberlin College and later went to Radcliffe College, then called the Society for the Collegiate … greencastle middle school home page
Henrietta Leavitt - Wikipedia
Web21 uur geleden · Henrietta Swan Leavitt was an American astronomer who worked in the late 1800s and early 1900s as a human computer, crunching data and measuring the brightness and positions of hundreds of stars. WebHenrietta Swan Leavitt, American astronomer and academic (b. 1868) Henrietta Swan Leavitt (; July 4, 1868 – December 12, 1921) was an American astronomer. A graduate of Radcliffe College, she worked at the Harvard College Observatory as a "computer", tasked with examining photographic plates in order to measure and catalog the brightness of ... Web20 jul. 1998 · Henrietta Swan Leavitt, (born July 4, 1868, Lancaster, Massachusetts, U.S.—died December 12, 1921, Cambridge, Massachusetts), American astronomer known for her discovery of the relationship between period and luminosity in Cepheid … greencastle mo