Results 41 to 50 of about 145,673 (323)
Astronomical situation in the starry sky in the Neolithic-Chalcolithic in northern latitudes [PDF]
Archaeoastronomy and Ancient Technologies, 2014 The starry sky has been one of the central ancient sources of human knowledge - reflected in myths, religious practice, the arrangements of stone monuments, designs on stone and ceramics, and in the spatial orientation of ancient settlements.
Polyakova, O.O.
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Spin precession in anisotropic cosmologies [PDF]
, 2016 We consider the precession of a Dirac particle spin in some anisotropic Bianchi universes. This effect is present already in the Bianchi-I universe. We discuss in some detail the geodesics and the spin precession for both the Kasner and the Heckmann ...
Kamenshchik, A. Yu., Teryaev, O. V.
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Magnetic resonance signal [PDF]
Tehnika, 2019 The aim of this paper is to describe the magnetic resonance signal, how it occurs, what types of the signal there are and what they are used for. In order to achieve that goal, the original article of Isidor Isaak Raby was given, which disclosed the ...
Vujović Željko Đ.
doaj
Maria Reiche's line to archaeoastronomy [PDF]
Archaeoastronomy and Ancient Technologies, 2013 Maria Reiche was a German mathematician and archaeologist that, from 1940, devoted her life to the study of the Nazca Lines, the most famous Peruvian geoglyphs, gaining recognition and preservation of them. Created by removing the upper most layer of the
Sparavigna, A.C.
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Precession of Isolated Neutron Stars II: Magnetic Fields and Type II Superconductivity [PDF]
, 2002 We consider the physics of free precession of a rotating neutron star with an oblique magnetic field. We show that if the magnetic stresses are large enough, then there is no possibility of steady rotation, and precession is inevitable.
Wasserman, Ira
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Precession Motion in Levitated Optomechanics. [PDF]
Physical Review Letters, 2018 We investigate experimentally the dynamics of a nonspherical levitated nanoparticle in a vacuum. In addition to translation and rotation motion, we observe the light torque-induced precession and nutation of the trapped particle. We provide a theoretical
Muddassar Rashid +3 more
semanticscholar +1 more source
Odessa Astronomical Publications, 2014 The light curves of EGS Ajisai with temporal resolution of 20 ms referred to the time scale UTC (GPS) with an error of at most 0.1 ms were obtained. The observed flashes are produced when the mirrors which cover the spinning satellite’s surface reflect ...
N. Burlak +5 more
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Comparing Post-Newtonian and Numerical-Relativity Precession Dynamics [PDF]
, 2015 Binary black-hole systems are expected to be important sources of gravitational waves for upcoming gravitational-wave detectors. If the spins are not colinear with each other or with the orbital angular momentum, these systems exhibit complicated ...
Boyle, Michael +5 more
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The Physics Teacher, 2000 When a symmetric top is set spinning with angular velocity ωc about its own axis, it traces out a circle about a vertical direction with angular velocity ωz.
openaire +2 more sources
On the precession of accretion discs in X-ray binaries
, 1998 In this letter recent results on the nodal precession of accretion discs in close binaries are applied to the discs in some X-ray binary systems. The ratio between the tidally forced precession period and the binary orbital period is given, as well as ...
Larwood, J.
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