Oleg D. Jefimenko
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'''Oleg D. Jefimenko''' is a [[physicist]] and [[Professor Emeritus]] at [[West Virginia University]].
==Biography==
Jefimenko received his [[B.A.]] at [[Lewis and Clark College]] (1952). He received his [[Master of Arts (postgraduate)|M. A.]] at the [[University of Oregon]] (1954). He received his [[Doctor of Philosophy|Ph.D.]] at the [[University of Oregon]] (1956). Jefimenko has worked for the development of the theory of electromagnetic retardation and relativity. In 1956, he was awarded the [[Sigma Xi Prize]]. In 1971 and 1973, he won awards in the [[American Association of Physics Teachers|AAPT]] Apparatus Competition. Jefimenko has constructed and operated electrostatic generators run by [[atmospheric electricity]].
Jefimenko has worked on the generalization of [[Newton's theory of gravitation|Newton's gravitational theory]] to [[Time-dependent density functional theory|time-dependent system]]s. In his opinion, there is no objective reason for abandoning Newton's [[Field (physics)|force-field]] gravitational theory (in favor of a [[metric gravitational theory]]). He is actively trying to develop and expand Newton's theory, making it compatible with the [[Causality (physics)|principle of causality]] and making it applicable to time-dependent gravitational interactions.
Jefimenko's expansion, or generalization, is based on the existence of the second gravitational force field, the "[[cogravitational field|cogravitation]]al, or [[Heaviside's field|Heaviside's, field]]". This is similar to [[general relativity]] theory's [[gravimagnetic field]]. [[Oliver Heaviside]] first predicted this field in the article "''A Gravitational and Electromagnetic Analogy''" (1893).
==Selected publications==
===Books===
* "''Electrostatic motors; their history, types, and principles of operation''". Star City [W. Va.], Electret Scientific Co. [1973]. LCCN 73180890
* "''Electromagnetic Retardation and Theory of Relativity: New Chapters in the Classical Theory of Fields''", 2nd ed., Electret Scientific, Star City, 2004.
* "''Causality, Electromagnetic Induction, and Gravitation: A Different Approach to the Theory of Electromagnetic and Gravitational Fields''", 2nd ed., Electret Scientific, Star City, 2000.
* "''Electricity and Magnetism: An Introduction to the Theory of Electric and Magnetic Fields''", 2nd ed., Electret Scientific, Star City, 1989.
* "''Scientific Graphics with Lotus 1-2-3: Curve Plotting, 3D Graphics, and Pictorial Compositions''". Electret Scientific, Star City, 1987.
===Book chapters===
* "What is the Physical Nature of Electric and Magnetic Forces?" in ''Has the Last Word Been Said on Classical Electrodynamics''? -- New Horizons, A. E. Chubykalo, Ed., (Rinton Press, Paramus, 2004 ).
* "Does special relativity prohibit superluminal velocities?" in ''Instantaneous Action at a Distance in Modern Physics: "Pro" and "Contra''", A. E. Chubykalo, Ed., (Nova Science, New York, 1999).
===Papers===
* "A neglected topic in relativistic electrodynamics: transformation of electromagnetic integrals". arxiv.org, 2005.
* "''Presenting electromagnetic theory in accordance with the principle of causality''", Eur. J. Phys. 25 287-296, 2004. doi:10.1088/0143-0807/25/2/015
* "Causality, the Coulomb field, and Newton's law of gravitation" (Comment), American Journal of Physics, Volume 70, Issue 9, p. 964, September 2002.
* "The Trouton-Noble paradox," J. Phys. A. 32, 3755–3762, 1999.
* "On Maxwell's displacement current," Eur. J. Phys. 19, 469-470, 1998.
* "Correct use of Lorentz-Einstein transformation equations for electromagnetic fields", European Journal of Physics 18, 444-447, 1997.
* "''Retardation and relativity: Derivation of Lorentz-Einstein transformations from retarded integrals for electric and magnetic fields''", American Journal of Physics 63 (3), 267-72.
* "''Retardation and relativity: The ease of a moving line charge''", American Journal of Physics, 63 (5), 454-9.
* "Direct calculation of the electric and magnetic fields of an electric point charge movingwith constant velocity," Am.J.Phys. 62, 79-84, 1994.
* "Solutions of Maxwell's equations for electric and magnetic fields in arbitrary media," Am. J. Phys. 60, 899-902 1992.
* "Electrets," (with D. K. Walker) Phys. Teach. 18, 651-659, 1980.
* "How can An Electroscope be Charged This Way?", TPT 56, 1979.
* "''Water Stream 'Loop-the-Loop'''", AJP 42, 103-105, 1974.
* "Franklin electric motor," Am. J. Phys. 39, 1139-1141, 1971.
* "Operation of electric motors from atmospheric electric field," Am. J. Phys. 39, 776-779, 1971.
* "Demonstration of the electric fields of current-carrying conductors," Am. J. Phys. 30, 19-21, 1962.
* "Effect of the earth's magnetic field on the motion of an artificial satellite," Am. J. Phys. 27, 344-348, 1959.
===Encyclopedia Article===
* "'Maxwell's Equations'", Macmillan Encyclopedia of Physics, Macmillan, New York, 1996.
==See also==
* [[Electret]]s
* [[Electrostatic generator]]s
==External links==
* [http://www.as.wvu.edu/coll03/phys/www/OJ/JEFIMENK.HTM Oleg D. Jefimenko]. Dept of physics.
[[Category:American physicists|Jefimenko]]
[[Category:Lewis & Clark College alumni]]
[[Category:University of Oregon alumni]]