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medgalis
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Hello. This topic might seem stupid, but i got interested in quantum gravity and I didn't understand how gravity grasps and distorts spacetime. So my question is, how can gravity distort spacetime?
According to GR, anything with stress-energy produces gravity. So matter produces gravity because it has a high energy density and therefore a "large" stress-energy tensor.medgalis said:How can matter produce gravity.
How can gravity grasp on space time?...How can matter produce gravity..
Gravity is a force that attracts objects with mass towards each other. It is caused by the curvature of space-time due to the presence of mass or energy. The more mass an object has, the more gravity it has and the stronger its pull.
Gravity is not a physical object that can grasp on space-time. Instead, it is a fundamental force that creates the curvature of space-time. The more mass an object has, the more it curves space-time, and the stronger its gravitational pull.
Gravity and space-time are closely linked together. According to Einstein's theory of general relativity, gravity is not a force between masses, but rather a curvature of space-time caused by the presence of mass or energy. This means that objects with mass cause a distortion in the fabric of space-time, which is perceived as the force of gravity.
Gravity also affects the flow of time. According to Einstein's theory of general relativity, time moves slower in stronger gravitational fields. This means that time runs slower near massive objects like planets and stars compared to areas with weaker gravitational fields.
There are other theories that attempt to explain gravity, such as Newton's law of universal gravitation and quantum gravity. However, Einstein's theory of general relativity is the most widely accepted and accurate explanation of how gravity works, as it has been extensively tested and proven through observations and experiments.