Ephraim Fischbach (born 1942) is an American physicist and a professor at Purdue University. He is best known for his attempts to find a fifth force of nature[1] and his research relating to the detection of neutrinos.[2] He has also done work relating to the prediction of solar flares[3] and the detection of radiation by cell phones.[4]
Ephraim Fischbach | |
|---|---|
| Born | 1942 Brooklyn, New York |
| Nationality | American |
| Alma mater | |
| Known for | |
| Awards | Fellow of the American Physical Society |
| Scientific career | |
| Academic advisors | Henry Primakoff |
| Doctoral students | Harry Kloor |
Fischbach studies variation in radioactive decay rates, suggesting that neutrino emission from the Sun reduces the rate of nuclear decay.[5] He reanalysed the Eötvös experiment, which he saw as evidence for a fifth physical force.[6] However, in 1992, he and Carrick Talmadge conducted an experiment which found no compelling evidence for a fifth force.[7]
Fischbach has been a fellow of the American Physical Society since 2001, and a professor at Purdue since 1979. He also was an associate professor at the Institute for Theoretical Physics in Stony Brook, New York from 1978 to 1979. He received a B.A. in physics in 1963 from Columbia University and a Ph.D. in 1967 from the University of Pennsylvania.
References
edit- ^ Wilford, John Noble (Oct 17, 1986). "PHYSICISTS CHALLENGE THEORY OF A 'FIFTH FORCE' BEYOND GRAVITY". New York Times.
- ^ Foltz, Aulden (December 1, 2016). "Physicists propose new system for detecting neutrinos". Stanford Daily.
- ^ WAMC Northeast Public Radio (November 1, 2012). "Dr. Ephraim Fischbach, Purdue University – Predicting Solar Flares". WAMC Northeast Public Radio.
- ^ "Ephraim Fischbach". Bulletin of the Atomic Scientists. Retrieved 2024-01-10.
- ^ Madrigal, Alexis C. (August 25, 2010). "Maybe Radioactive Decay Rates Aren't Physical Constants". The Atlantic.
- ^ Fischbach, Ephraim; Sudarsky, Daniel; Szafer, Aaron; Talmadge, Carrick; Aronson, S.H. (6 January 1986). "Reanalysis of the Eötvös experiment". Physical Review Letters. 56 (1): 3–6. Bibcode:1986PhRvL..56....3F. doi:10.1103/PhysRevLett.56.3. PMID 10032514.
- ^ Fischbach, Ephraim; Talmadge, Carrick (March 19, 1992). "Six years of the fifth force". Nature. 356 (6366): 207–215. Bibcode:1992Natur.356..207F. doi:10.1038/356207a0. ISSN 0028-0836. S2CID 21255315.
External links
edit- https://www.aip.org/history-programs/niels-bohr-library/oral-histories/44882
- https://www.physics.purdue.edu/people/faculty/ephraim.php
- https://www.washingtonpost.com/archive/politics/1990/11/05/physics-gravitating-toward-newtonian-forces/714bdabb-fbd8-4e8f-b9d9-205bacb71a9a/
- https://www.nytimes.com/1994/08/08/nyregion/purdue-student-in-a-first-earns-a-double-doctorate.html?partner=rssnyt&emc=rss
- https://link.springer.com/book/10.1007/978-1-4612-1438-0