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The theory of gravity violates common sense in many ways It explains the attraction between objects and plays a crucial role in celestial bodies' motions. Adherents have a hard time explaining, for instance, why airplanes do not fall
The theory, if taken seriously, implies that the default position for all airplanes is on the ground. Gravity is a fundamental force in the universe, encompassing both a theory and a law That is what theories are for
In the language of science, a theory is an explanation of why and how things happen
For gravity, we use einstein's theory of general relativity to explain why things fall A theory starts as one or more hypotheses, untested ideas about why something happens. A new theory proposes gravity isn't a fundamental force but emerges from quantum electromagnetic interactions, potentially reshaping our view of spacetime itself. Gravity is the law that every object with mass attracts every other object in the universe in proportion to each mass and inversely proportional to the square of the distance between them
The force of gravity, f is written using the gravitational constant, g, as [7] for two masses, m, and m′ separated by a distance r. Gravity, however, affects all objects with mass or energy While the strong, electromagnetic, and weak forces are incredibly powerful at short distances, gravity is by far the weakest of the four fundamental interactions Its influence becomes noticeable only with large masses, like planets and stars, due to its infinite range.
The newtonian theory of gravity is based on an assumed force acting between all pairs of bodies—i.e., an action at a distance
When a mass moves, the force acting on other masses had been considered to adjust instantaneously to the new location of the displaced mass That, however, is inconsistent with special relativity, which is based on the axiom that all. Newton's theory says this can occur because of gravity, a force attracting those objects to one another or to a single, third object Einstein also says this occurs due to gravity — but in his theory, gravity is not a force.
Gravity is both a theory and a law, but they describe different aspects of it This refers to the mathematical description of the gravitational force between two objects Sir isaac newton formulated the law of universal gravitation, which calculates the force based on the masses of the objects and the distance between them. Developing a theory of quantum gravity is one of the most important open problems in physics
Such a theory would not only deepen our understanding of gravity but also provide insights into the early universe, black holes, and other extreme phenomena.
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