CURIOSA
- 2006 August:
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Rotational Analog of the Hall Effect: Coriolis Contribution to Electric Current
by B. J. Ahmedov and M. J. Ermamatov
[Found. Phys. Lett. 15, 305 (2002)]
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Mysteries on Universe's Largest Observable Scales
by Dragan Huterer
[2006/08] We review recent findings that the universe on its largest scales shows hints of the violation of statistical isotropy, in particular alignment with the geometry and direction of motion of the solar system, and missing power at scales greater than 60 degrees. We present the evidence, attempts to explain it using astrophysical, cosmological or instrumental mechanisms, and prospects for future understanding.
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Dynamics of Extended Spinning Masses in a Gravitational Field
by Bahram Mashoon and Dinesh Singh
[2006/08]
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A Modified Gravity and its Consequences for the Solar System, Astrophysics and Cosmology
by J. W. Moffat
[2006/08]
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Packing Hyperspheres in High-Dimensional Euclidean Spaces
by M.Skoge et al.
[2006/08]
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Unveiling Chameleons in Tests of Gravitational Inverse-Square Law
by Amol Upadhye
[2006/08]
Scalar self interactions are known to weaken considerably the current constraints on scalar-mediated fifth forces. We consider a scalar field with a quartic self interaction and gravitation-strength Yukawa couplings to matter particles. After discussing the phenomenology of this scalar field, we assess the ability of ongoing and planned experiments to detect the fifth force mediated by such a field. Assuming that the quartic and matter couplings are of order unity, the current-generation Eot-Wash experiment at the University of Washington will be able to explore an interesting subset of parameter space. The next-generation Eot-Wash experiment is expected to be able to detect, or to rule out, the fifth force due to such a scalar with unit quartic and matter couplings at the 3 sigma confidence level.
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