Results 41 to 50 of about 591,643 (217)
Is Gravity an Entropic Force? [PDF]
The remarkable connections between gravity and thermodynamics seem to imply that gravity is not fundamental but emergent, and in particular, as Verlinde suggested, gravity is probably an entropic force.
Shan, Gao, Shan Gao
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The effect of gravity upon changes of the entropy of a gravity-dominated system is discussed. In a universe dominated by vacuum energy, gravity is repulsive, and there is accelerated expansion. Furthermore, inhomogeneities are inflated and the universe approaches a state of thermal equilibrium. The difference between the evolution of the cosmic entropy
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Gravity Assist as a Test of Relativistic Gravity
9 pages, 2 ...
Bolokhov, S. V. +2 more
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Methods for Calculating Empires in Quasicrystals
This paper reviews the empire problem for quasiperiodic tilings and the existing methods for generating the empires of the vertex configurations in quasicrystals, while introducing a new and more efficient method based on the cut-and-project technique ...
Fang Fang, Dugan Hammock, Klee Irwin
doaj +1 more source
International trade without CES : estimating translog gravity [PDF]
This paper derives a micro-founded gravity equation based on a translog demand system that allows for flexible substitution patterns across goods. In contrast to the standard CES-based gravity equation, translog gravity generates an endogenous trade cost
Novy, Dennis
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I often hear scientists say that gravity is a purely attractive force. In his 1967 article “GRAVITATION”, World Book Encyclopedia’s Robert F. Paton M.Sc., Ph.D. presents a view closer in time to General Relativity’s formulation when he writes – “Einstein says that bodies do not attract each other at a distance.
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La Soufriere Volcanic Eruptions Launched Gravity Waves Into Space [PDF]
Atmospheric gravity waves can be excited by explosive volcanic eruptions and may reach Earth's upper atmosphere. In this study, we report on mesoscale concentric gravity waves observed in the mesopause airglow layer following the La Soufriere volcano ...
Kahn, Ralph +13 more
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By attaching five (complex) anticommuting property coordinates to the four (real) commuting space-time ones, it is possible to accommodate all the known fundamental particles in their three generations. A general relativistic extension to space-time-property can be carried out such that the gauge fields find their place in the space-property sector and
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The Unexpected Fractal Signatures in Fibonacci Chains
In this paper, a new fractal signature possessing the cardioid shape in the Mandelbrot set is presented in the Fourier space of a Fibonacci chain with two lengths, L and S, where L / S = ϕ . The corresponding pointwise dimension is 1.7.
Fang Fang, Raymond Aschheim, Klee Irwin
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GRAVITY AND MIRROR GRAVITY IN PLEBANSKI FORMULATION [PDF]
We present several theories of four-dimensional gravity in the Plebanski formulation, in which the tetrads and the connections are the independent dynamical variables. We consider the relation between different versions of gravitational theories: Einsteinian, "topological," "mirror" gravities and gravity with torsion.
bennett, D.L. +3 more
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