Arkadi Gershteyn
Arkadi Gershteyn | |
|---|---|
| Known for | Experimental tests of the anisotropy of the gravitational constant |
| Scientific career | |
| Fields | Physics, gravitation |
Arkadi Gershteyn (also spelled Arkady Gershteyn) is a researcher known as a co-author of experimental work reporting that the Newtonian gravitational constant G varies with the orientation of the test masses. He is listed in The Worldwide List of Dissident Scientists.
Work
Gershteyn is a co-author, with Mikhail L. Gershteyn, Lev I. Gershteyn and Oleg V. Karagioz, of the paper "Experimental evidence that the gravitational constant varies with orientation" (arXiv:physics/0202058, 2002). The authors report repeated measurements suggesting that G changes with the orientation of the gravitating masses relative to the fixed stars by at least 0.054 %, an effect they call "G anisotropy." They interpret this result as support for the Attractive Universe Theory associated with Mikhail L. Gershteyn, which holds that the gravitational interaction depends on the distribution of matter in the surrounding universe.
The claim of a directional dependence of G lies outside the scientific mainstream, in which the gravitational constant is treated as a true constant and the scatter among high-precision measurements is attributed to experimental systematics.