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gravitational force

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gravitational force

One of the four fundamental forces of nature, the other three being the electromagnetic force, the weak nuclear force, and the strong nuclear force. The gravitational force is the weakest of the four forces, but acts over great distances. The particle that is postulated as the carrier of the gravitational force is the graviton.



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? Mentioned in ? References in periodicals archive
 
The theory offers what may turn out to be a solution to the problem of quantum gravity: The gravitational force, in this scenario, is one more manifestation of vibrating strings.
No small matter: is theoretical physics stuck--and should you worry? by Silber, Kenneth / Reason
Previous Hubble studies had found that dark energy 5 billion years ago won the cosmic tug of war, turning the overall gravitational force from a pull to a push and revving up the universe's expansion.
Dark fingerprints: hubble sheds light on cosmic expansion by Cowen, Ron / Science News
The same mechanism works with sports: no soccer player, for example, will calculate the weight of a ball, the inertial forces, the friction, the speed of wind and the influence of the gravitational force in order to shoot a goal.
Meet the 2003 MTNA-Shepherd: Distinguished Composer of the Year by Walker, Deanna / American Music Teacher
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