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What does the theory of gravity say?


What does the theory of gravity say?

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 a consequence of masses moving along geodesic lines in a curved spacetime caused by the uneven distribution of mass.

Is gravity a fact or theory?

Universal Gravity is a theory, not a fact, regarding the natural law of attraction. This material should be approached with an open mind, studied carefully, and critically considered. The Universal Theory of Gravity is often taught in schools as a fact, when in fact it is not even a good theory.

Why gravity isnt a force?

In general relativity, gravity is not a force between masses. Instead gravity is an effect of the warping of space and time in the presence of mass. Without a force acting upon it, an object will move in a straight line. This explains why all objects fall at the same rate.

Why gravity is an illusion?

Gravity, too, would be part of the illusion: a force that is not present in the two-dimensional world but that materializes along with the emergence of the illusory third dimension. A hologram is a two-dimensional object, but when viewed under the correct lighting conditions it produces a fully three-dimensional image.

Do we know what gravity is?

However, if we are to be honest, we do not know what gravity “is” in any fundamental way – we only know how it behaves. Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. It is an attraction that exists between all objects, everywhere in the universe.

Is gravity Real Veritasium?

To say gravity is “not a force,” is completely different from saying it “is an illusion.” Gravity is not an illusion. Depending on how you define what is a “real” force, it can be a force or not. It’s not a force because at some point it stops making sense to talk about forces. Same thing with, say, the weak force.

Is gravity a fictitious force?

In general relativity, gravity appears as a fictitious force; this is because GR attributes the apparent acceleration of gravity to the curvature of spacetime. You don’t “feel” gravity in an inertial reference frame (e.g. when the elevator cable snapped) because in that frame there’s no force acting on you.

Where is gravity the strongest?

In general, the closer the centers of two objects, the greater the force of gravity becomes. Therefore, you would expect gravity in the United States to be stronger wherever you are closest to the center of the Earth.