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Vesto Melvin Slipher (/ ˈ s l aɪ f ər /; November 11, 1875 – November 8, 1969) was an American astronomer who performed the first measurements of radial velocities for galaxies. He was the first to discover that distant galaxies are redshifted , thus providing the first empirical basis for the expansion of the universe.
Apr 9, 2024 · Vesto Slipher was an American astronomer whose systematic observations (1912–25) of the extraordinary radial velocities of spiral galaxies provided the first evidence supporting the expanding-universe theory. Born on an Indiana farm, Vesto Slipher studied at Indiana University (B.A., 1901; M.A.,
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“V.M.” Slipher was born in Indiana and educated at Indiana University. His entire career was spent at the Lowell Observatory, where he started immediately after receiving his A.B. in 1901 and which he directed from 1916 to 1954. His visible and infrared spectroscopic studies of planets led to the determination of rotation periods— he made the first spectroscopic measurement of the ...
Sep 1, 2021 · Slipher’s name doesn’t get regularly name-checked as one of the greatest scientists of all-time, but his contributions helped to establish our current view of the cosmos. Vesto Melvin Slipher. Courtesy of the National Academy of Sciences. Vesto Melvin Slipher was born on November 11, 1875 on the family farm in Mulberry, Indiana.
Apr 29, 2020 · Vesto Melvin Slipher was born on a farm in Mulberry, Indiana, on November 11, 1875. Invariably known as “V.M. Slipher,” he had an unspectacular childhood in the American Midwest, with few ...
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May 29, 2018 · Complete Dictionary of Scientific Biography. SLIPHER, VESTO MELVIN (b. Mulberry, Indiana, 11 November 1875; d. Flagstaff, Arizona, 8 November 1969)astronomy.Slipher, a son of David Clarke and Hannah App Slipher, perfected techniques in spectroscopy and achieved great advances in galactic astronomy. He earned his B.A. (1901), his M.A.
The 1915 paper is the classic, in which Slipher presented his results to the American Astronomical Society (August 1914 meeting). Out of 15 galaxies, 11 were clearly redshifted. He received a standing ovation. The 1917 paper is perhaps the most interesting. The redshift:blueshift ratio has now risen to 21:4, but it is the interpretation that is ...
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