gravitational energy
1.Early on, dense iron sank out of the magma oceans to form the metallic core, liberating enough gravitational energy to melt the entire planet.
2.If we can change our position so it is more in line and more in harmony with gravitational energy, then our tendency to randomness, disorder, and deterioration will decrease.
3.In this paper,it detailed analyzed particle numeral densitydistributing law about system of the earth atmosphere.In it to found:(1)balance condition of the system is differentiate and ecumenic thermodynamic system.(2)particle numeral density distributing law of the system not only bear on and average speed and seat gravitational potential energy of system,but also bear on grads of temperature and speed about distance of system,at one time,it bears on whole spore speed of system.
4.The energy momentum tensor density and the spin density of gravitational field with torsion are restudied; the rationalities for definitions T (G) μ i defδL G/δ h i μ and C (G) μ ij def -2 δL G/δ Γ ij μ are confirmed; the conclusions that gravitational wave does not carry energy momentum and spin are deduced.
5.It is found that energy density of static sphere symmetry of gravitational field is negative in the sphere coordinates and their energy density is positive definite in the Cartesian coordinates.
6.The higher the density reached the deeper the shock wave digs into the gravitational well and hance the shock wave will be launched with a larger energy.
7.We use Einstien-Tolman expression of the energy-momentum pseudo tensor (EMPT) in the sphere and Cartesian coordinates, calculated the energy density of static sphere symmetry of gravitational field.
8.(spaceflight) a trajectory that passes close to a planetary body in order to gain energy from its gravitational field.
9.In a very bright galaxy 400 million light-years away, two black holes are drifting toward each other and in millions of years will merge with an eruption of energy and a burst of gravitational waves that could warp the very fabric of space, astronomers said Tuesday.
10.Subsequently, using the mass-energy relation, the general expression of the solution of the energy-curvature equation on the medium shell curve method is discussed, and the general expression of Binet equation about orbit of the celestial bodies motion is given. Further more, the analysis solutions of the advance of the perihelion of planets and bending of light for the gravitational force are given.
