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- Solar effective temperature: Teff = 5777 K Hubble Constant: H0 = 70.1±1.3 kms-1 Mpc-1 Cosmological Constant: |Λ|≤10-51 m-2 Cosmic background radiation = 2622 bytes (128 words) - 20:41, 30 March 2009
- tensor is the Cosmological constant is pi=3.1415..., the ratio between a circle's circumference and diameter is the Gravitational constant is the speed6 KB (1,020 words) - 03:13, 25 August 2009
- places 50% tighter limits on the standard model of cosmology (cold dark matter and a cosmological constant in a flat universe), and there is no compelling5 KB (792 words) - 20:57, 11 October 2015
- Cosmological constant Why doesn't the zero-point energy of vacuum cause a large cosmological constant? What cancels it out? Why does the cosmological11 KB (1,766 words) - 18:37, 11 November 2013
- an accelerating rate. The cause of this is hypothesized to be a cosmological constant, a pressure that exists throughout the Universe tending to expand8 KB (1,221 words) - 04:24, 20 June 2013
- it may be an inert property of empty space (accounted for by the cosmological constant), a possibility first proposed by Einstein. Dark energy accounts9 KB (1,541 words) - 16:50, 5 February 2013
- expression of and .} Einstein equation corresponds to . Constant is called cosmological constant. Matter tensor is not deduced from symmetries implied7 KB (1,110 words) - 04:24, 8 November 2009
- be true in competing scenarios. For example, measurements of the cosmological constant has helped narrow down the theoretical possibilities regarding the25 KB (3,915 words) - 03:51, 7 July 2015
- determined yet, depends basically on the rate of expansion, or the Hubble Constant, of the Universe. In simple terms, the quantity Ω is the ratio of the density1 KB (188 words) - 17:21, 22 November 2014
- (and therefore outside of the gravitational field), is the gravitational constant, is the mass of the object creating the gravitational field, is the radial8 KB (1,274 words) - 17:22, 22 November 2014
- obscured would be transmitted anyway. Einstein's model for the universe was a constant size. He postulated a repulsive (lambda) force that counterbalanced gravity2 KB (272 words) - 01:24, 9 June 2009
- making the subject: We now have a formula in the form , with as the constant of proportionality, where m is the mass of the Sun. In 1821, Alexis Bouvard15 KB (1,572 words) - 11:56, 13 April 2015
- v • d • e A-level physics Cosmology Models of the known universe • Stars and Galaxies • Structure of the universe • Information from stellar1 KB (100 words) - 12:56, 27 May 2015
- A direct current (DC) circuit usually has a steady and constant voltage supplied to it. A direct current does not have a continually changing polarity3 KB (406 words) - 17:10, 4 April 2015
- Kinetic energy of the emitted electron Algebraically: where h is Planck's constant, f is the frequency of the incident photon, is the work function, or minimum5 KB (685 words) - 17:28, 22 November 2014
- form to another, the total amount of energy in a closed system is always constant. There are two main different types of energy; kinetic and potential. Kinetic1 KB (179 words) - 17:24, 22 November 2014
- times the frequency of oscillations. Gravitational Fields Force is Gravitational Force Constant () times mass one times mass two over radius squared.2 KB (20 words) - 17:24, 22 November 2014
- waves travel at the same speed (in a vacuum), and that is the universal constant known as the "speed of light," most often abbreviated by the lower-case3 KB (469 words) - 17:23, 22 November 2014
- decayed. The decay constant has the units in the SI system, but , or even may be used. In the example above, the decay constant, λ, is equal to 0.111 KB (1,587 words) - 17:28, 22 November 2014
- only an instant of its existence. To get a clearer picture of how the cosmological time scales fit together, let's consider an imaginary astronomer whose15 KB (2,089 words) - 23:39, 14 August 2015