# gravitation

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## grav·i·ta·tion

(grav'i-tā'shŭn),
The force of attraction between any two bodies in the universe, varying directly as the product of their masses and inversely as the square of the distance between their centers; expressed as F = Gm1m2l -2, where G (newtonian constant of gravitation) = 6.67259 × 10-11 m3 kg-1 s-2, m1 and m2 are the masses (in kg) of the two bodies, and l is the distance separating them in meters.
[L. gravitas, weight]

## gravitation

(grăv″ĭ-tā′shŭn) [L. gravitas, weight]
The force and movement tending to draw every particle of matter together, esp. the attraction of the earth for bodies at a distance from its center.
References in periodicals archive ?
MM] represents Newton's law for the gravitational interaction between two masses.
1 are generally thought to be associated with tidal effects--and in the case at hand, this would mean gravitational interactions, such as a form of lensing.
But the complex and constantly changing gravitational interactions of the major planets with small solar-system objects like 433 Eros make their orbits unstable and easily disturbed.
Gravitational interactions among moons can be strong.
At such a gigantic scale, even the biggest supercomputers in the world have been limited to handling primarily simple gravitational interactions of dark matter, if the calculations are to be completed within reasonable time (months) and at affordable cost.
They were later scattered to the Solar System's far outer reaches as a result of gravitational interactions with the gas giant planets as they settled in their orbits.
The favourite theoretical model, the Cold Dark Matter (CDM) paradigm, assumes that dark matter is made of collisionless particles acting on galactic scales purely through gravitational interactions.
In an upcoming study, Williams describes how gravitational interactions could lead to a gas giant capturing a terrestrial planet that would then become its moon.
If one wishes to unify electroweak, strong and gravitational interactions it is a must to implement the classical gravitational constant G in the sub atomic physics.
Jupiter is vulnerable to gravitational interactions with a passing star," Adams points out.
So finding the planet's signature in the star's wobbles meant the team needed to carefully filter out other sources of stellar variability such as star spots, bulges on the star's surface and gravitational interactions with Alpha Centauri A.
So for gas giants to orbit nearer to their stars, certain gravitational interactions have to take place to pull these planets in.

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