The Weyl-Dirac theory of gravitation and electromagnetism is modified by the introduction of a background metric characterized by a scale constant related to the size of the universe. One is led to a natural ga
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According to general relativity, the gravitational field is coded in a metric of Lorentzian signature on the 4-dimensional spacetime manifold, and the light rays are the lightlike geodesics of this spacetime metric. From a mathematical point of view, the theory of gravitational lensing is thus ...
2, we first calculated the number of POIs and their diversity based on business types using Shannon Entropy (Shannon, 1948) for each district. This entropy metric measures the number of permutations of the states of a system. Here, it represents the number of different combinations of various ...
When we generalize general relativity to most gen- eral metric theories in four-dimensional space-time, there are at most six independent polarization modes; besides two ten- sor modes (+ and ×), there are two vector modes (x), (y) and two scalar modes: breathing mode (b) and ...
astrometric binary attraction attractive force black hole bothrodesy celestial mechanics center of gravity centers of gravity closed universe constant constant of gravitation cosmogeny critical mass dark energy dark matter dark star degenerate matter References in classic literature ? The peculiar V-shaped ...
gravitational constantnon-Newtonian gravity.M. OldhamPhysics Department, the University, Newcastle upon Tyne NE1 7RU, UKF. J. LowesPhysics Department, the University, Newcastle upon Tyne NE1 7RU, UKR. J. EdgeProudman Oceanographic Laboratory, Bidston Observatory, Birkenhead, Merseyside L43 7RA, ...
The gravitational constant G can be determined by an electrometric measurement using a group of current-bearing coils. An experiment to test this method has been performed.Liu Ben-linElectron. Ind. Workers&Staffs Coll.Jia-lu ZhangHan-Zai RenPei-Ling PaoTu-Dan-WeiBin WenJin-An-ZhuDing-Ji Song...
The proportionality constant G is called the constant of gravitation, or gravitational constant. The first measurement of G was made in 1798 by the English physicist H. Cavendish, who used a torsion balance to determine the forces of attraction between spherical masses. According to the most ...
The proportionality constant G is called the constant of gravitation, or gravitational constant. The first measurement of G was made in 1798 by the English physicist H. Cavendish, who used a torsion balance to determine the forces of attraction between spherical masses. According to the most ...