The surface gravity, g, of an astronomical object is the gravitational acceleration experienced at its surface at the equator, including the effects of...
26 KB (3,144 words) - 13:59, 8 May 2025
wave orbit. Gravity waves on an air–sea interface of the ocean are called surface gravity waves (a type of surface wave), while gravity waves that are...
18 KB (2,568 words) - 22:40, 1 May 2025
in newtons per kilogram (N/kg or N·kg−1). Near Earth's surface, the acceleration due to gravity, accurate to 2 significant figures, is 9.8 m/s2 (32 ft/s2)...
32 KB (3,848 words) - 02:50, 19 May 2025
intervals. For surface mapping of gravity, placement of instruments can be randomized. Surface gravity mapping is often used to map out gravity anomalies such...
6 KB (498 words) - 17:45, 1 April 2025
propagating on the water surface, with gravity and surface tension as the restoring forces. As a result, water with a free surface is generally considered...
30 KB (3,434 words) - 18:07, 14 April 2025
Clairaut's theorem characterizes the surface gravity on a viscous rotating ellipsoid in hydrostatic equilibrium under the action of its gravitational...
16 KB (1,844 words) - 07:07, 18 April 2025
higher surface gravity, and thus higher temperature and pressure is needed to maintain hydrostatic equilibrium. Thus, the poles are "gravity brightened"...
3 KB (330 words) - 21:06, 13 March 2025
The gravity of Mars is a natural phenomenon, due to the law of gravity, or gravitation, by which all things with mass around the planet Mars are brought...
53 KB (6,282 words) - 00:06, 9 April 2025
List of Solar System objects by size (redirect from List of Solar System objects by surface gravity)
radius and mass and, for the most massive objects, volume, density, and surface gravity, if these values are available. These lists contain the Sun, the planets...
257 KB (10,930 words) - 14:27, 29 April 2025
Gravimetry (redirect from Gravity meter)
is defined as approximately equal to the acceleration due to gravity at the Earth's surface, although the actual acceleration varies slightly by location...
26 KB (3,197 words) - 15:09, 10 May 2025
Supergiant (section Surface gravity)
spectra, with distinctive lines sensitive to high luminosity and low surface gravity. In 1897, Antonia C. Maury had divided stars based on the widths of...
40 KB (5,378 words) - 22:07, 13 May 2025
Mars (redirect from Mars surface features)
permafrost and ice caps (with seasonal CO2 snow), but no liquid surface water. Its surface gravity is roughly a third of Earth's or double that of the Moon....
209 KB (18,461 words) - 20:56, 15 May 2025
The gravity anomaly at a location on the Earth's surface is the difference between the observed value of gravity and the value predicted by a theoretical...
20 KB (2,991 words) - 10:20, 12 May 2025
forces, gravity results in a constant downward acceleration of every freely moving object. Near Earth's surface the acceleration due to gravity is g =...
51 KB (8,115 words) - 14:54, 21 May 2025
Earth's rotation. Gravity gives weight to physical objects and is essential to understanding the mechanisms responsible for surface water waves and lunar...
80 KB (8,564 words) - 02:36, 20 May 2025
Wind wave (redirect from Ocean surface waves)
Wind waves in the ocean are also called ocean surface waves and are mainly gravity waves, where gravity is the main equilibrium force. Wind waves have...
49 KB (6,281 words) - 14:15, 6 May 2025
letter beta (β) for intermediate surface gravity and gamma (γ) for low surface gravity. Indication for low surface gravity are weak CaH, KI and NaI lines...
106 KB (11,591 words) - 14:58, 12 May 2025
depends on the local gravity field (see physical geodesy). As a result, the elevations in the data are referenced to the geoid, a surface that is not readily...
24 KB (2,842 words) - 03:41, 26 April 2025
Internal wave (redirect from Internal gravity waves)
Internal waves are gravity waves that oscillate within a fluid medium, rather than on its surface. To exist, the fluid must be stratified: the density...
23 KB (3,377 words) - 21:53, 1 April 2025
mechanics are expressed in geometrized units. The horizon has constant surface gravity for a stationary black hole. For perturbations of stationary black...
25 KB (3,223 words) - 18:21, 16 February 2025
the flux (surface integral) of the gravitational field over any closed surface is proportional to the mass enclosed. Gauss's law for gravity is often more...
15 KB (2,228 words) - 22:32, 26 April 2025
Infragravity waves are surface gravity waves with frequencies lower than the wind waves – consisting of both wind sea and swell – thus corresponding with...
9 KB (1,033 words) - 10:50, 10 December 2024
A star is a luminous spheroid of plasma held together by self-gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked...
147 KB (16,422 words) - 13:41, 20 May 2025
drawing parallels to black hole physics. Specifically, the use of surface gravity water waves has enabled the observation of logarithmic phase singularities...
4 KB (456 words) - 23:16, 6 March 2025
letter beta (β) for intermediate surface gravity or gamma (γ) for low surface gravity. Indicators of low surface gravity include weak CaH, K I and Na I...
166 KB (18,159 words) - 11:50, 21 May 2025
Ganymede (moon) (section Surface features)
Titan, it is larger than the planet Mercury, but has somewhat less surface gravity than Mercury, Io, or the Moon due to its lower density compared to...
112 KB (10,699 words) - 21:10, 17 May 2025
Artificial gravity is the creation of an inertial force that mimics the effects of a gravitational force, usually by rotation. Artificial gravity, or rotational...
38 KB (4,562 words) - 21:27, 18 May 2025
fluid dynamics, the Ursell number indicates the nonlinearity of long surface gravity waves on a fluid layer. This dimensionless parameter is named after...
4 KB (436 words) - 04:10, 21 November 2024
Earth (redirect from Surface area of earth)
oceans. The gravity of Earth is the acceleration that is imparted to objects due to the distribution of mass within Earth. Near Earth's surface, gravitational...
219 KB (19,417 words) - 06:55, 19 May 2025
measured surface gravity of Proxima Centauri, given as the base-10 logarithm of the acceleration in units of cgs, is 5.20. This is 162 times the surface gravity...
106 KB (9,923 words) - 11:10, 20 May 2025