John Reynolds (physicist): Difference between revisions
m Category:University of Chicago alumni |
Spacepotato (talk | contribs) sp; Urey and Fermi influential, but not advisors. |
||
| Line 13: | Line 13: | ||
|work_institution = [[Harvard University]], <br>[[University of Chicago]] |
|work_institution = [[Harvard University]], <br>[[University of Chicago]] |
||
|alma_mater = [[University of Chicago]], <br>[[University of California, Berkeley]] |
|alma_mater = [[University of Chicago]], <br>[[University of California, Berkeley]] |
||
|doctoral_advisor = [[Mark |
|doctoral_advisor = [[Mark Inghram]] |
||
|doctoral_students = |
|doctoral_students = |
||
|known_for = Discovery of excess meteoritic <sup>129</sup>Xe |
|known_for = Discovery of excess meteoritic <sup>129</sup>Xe |
||
| Line 22: | Line 22: | ||
==Life== |
==Life== |
||
John H. Reynolds was born {{birth date|1923|4|3}} in [[Cambridge, Massachusetts|Cambridge]], [[Massachusetts]], [[USA]]. He studied first at [[Harvard University]] and, after serving in the Navy during [[World War II]], at the [[University of Chicago]]. There, he was influenced by his [[Ph.D.]] thesis advisor [[Mark |
John H. Reynolds was born {{birth date|1923|4|3}} in [[Cambridge, Massachusetts|Cambridge]], [[Massachusetts]], [[USA]]. He studied first at [[Harvard University]] and, after serving in the Navy during [[World War II]], at the [[University of Chicago]]. There, he was influenced by his [[Ph.D.]] thesis advisor [[Mark Inghram]] and by two other famous [[physicists]], [[Harold Urey]] and [[Enrico Fermi]]. He specialized in [[mass spectroscopy]] and utilized this method to determine isotope ratios needed for the [[radiometric dating]] of geologically and cosmologically relevant samples. In 1950 he was appointed as professor to the [[University of California, Berkeley]] where he continued his research on isotope ratios in meteorites, leading to the discovery in 1960 that certain meteorites had an excess of [[xenon]]-129,<ref>{{cite journal |
||
| title = Isotopic Composition of Primordial Xenon |
| title = Isotopic Composition of Primordial Xenon |
||
| author = J. H. Reynolds |
| author = J. H. Reynolds |
||
Revision as of 01:38, 30 October 2007
John Hamilton Reynolds | |
|---|---|
| Born | April 3, 1923 |
| Died | November 4, 2000 (aged 77) |
| Alma mater | University of Chicago, University of California, Berkeley |
| Known for | Discovery of excess meteoritic 129Xe |
| Scientific career | |
| Fields | Geophysics |
| Institutions | Harvard University, University of Chicago |
| Doctoral advisor | Mark Inghram |
John Hamilton Reynolds[1] (April 3, 1923–November 4, 2000) was an American physicist and a specialist in mass spectroscopy.[2]
Life
John H. Reynolds was born April 3, 1923 in Cambridge, Massachusetts, USA. He studied first at Harvard University and, after serving in the Navy during World War II, at the University of Chicago. There, he was influenced by his Ph.D. thesis advisor Mark Inghram and by two other famous physicists, Harold Urey and Enrico Fermi. He specialized in mass spectroscopy and utilized this method to determine isotope ratios needed for the radiometric dating of geologically and cosmologically relevant samples. In 1950 he was appointed as professor to the University of California, Berkeley where he continued his research on isotope ratios in meteorites, leading to the discovery in 1960 that certain meteorites had an excess of xenon-129,[3][4] thought to be a result of the beta decay of iodine-129 in the early solar system.[5] His improvement of potassium-argon dating was adopted by several institutions.[2][6]
Reynolds was elected to the National Academy of Sciences in 1968. He died of pneumonia on November 4, 2000 in Berkeley, California, USA.[2]
References
- ^ The Leonard Medal, Meteoritics 8 (1973), pp. 291–293.
- ^ a b c John H. Reynolds, Physics: Berkeley, Bruce A. Bolt, Richard E. Packard, and P. Buford Price, in University of California: In Memoriam, 2000, edited by Micki Conklin, University of California Academic Senate, 2000. Accessed on line October 24, 2007.
- ^ J. H. Reynolds (1960). "Isotopic Composition of Primordial Xenon". Physical Review Letters. 4 (7): 351–354. doi:10.1103/PhysRevLett.4.351.
- ^ J. H. Reynolds (1960). "Determination of the Age of the Elements". Physical Review Letters. 4 (1): 8–10. doi:10.1103/PhysRevLett.4.8.
- ^ pp. 400–403, Radiogenic Isotope Geology, Alan P. Dickin, Cambridge, UK: Cambridge University Press, 1995. ISBN 0521598915.
- ^ John H. Reynolds, P. Buford Price, Biographical Memoirs 85 (2004), pp. 248–267, Washington, D.C.: National Academies Press, ISBN 0-309-10363-0. Accessed on line October 24, 2007.