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Dec 23, 2021 · Though gravity holds planets, stars, solar systems and even galaxies together, it turns out to be the weakest of the fundamental forces, especially at the molecular and atomic scales. Think of...
5 days ago · gravity, in mechanics, the universal force of attraction acting between all bodies of matter. It is by far the weakest known force in nature and thus plays no role in determining the internal properties of everyday matter.
Gravity is most accurately described by the general theory of relativity, proposed by Albert Einstein in 1915, which describes gravity not as a force, but as the curvature of spacetime, caused by the uneven distribution of mass, and causing masses to move along geodesic lines.
As one of the four fundamental forces of nature – alongside electromagnetism and the strong and weak nuclear forces – gravity is a hugely influential natural phenomenon. It’s a property of matter, of stuff. In a nutshell: all matter is attracted to all other matter.
Dec 16, 2023 · On the very large scale, as in astronomical systems, the gravitational force is the dominant force determining the motions of moons, planets, stars, and galaxies. The gravitational force also affects the nature of space and time.
They understand that there are four fundamental forces — gravity, electromagnetism, and the strong and weak nuclear forces — that are responsible for shaping the universe we inhabit. The most familiar force is gravity. It is responsible for keeping our feet on the ground and holding Earth in its orbit around the Sun.
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It is both the most familiar of the natural forces and the least understood. It is the force that causes objects to drop and water to run downhill. It is also the force that holds Earth, the Sun, and the stars together and keeps planets, moons, and artificial satellites in their respective orbits.
