All Questions
10
questions
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How does a curvature in time equate to Newtonian gravity? [duplicate]
I often read that a curvature in time (the rate at which clocks tick) near a massive object, is considered to be the source of Newtonian gravity.
This got me wondering, does General Relativity use the ...
-6
votes
1
answer
397
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Why use the Minkowski metric in general relativity? [closed]
We can represent Newton's free fall as a curved trajectory in 4-dimensional spacetime. Time is on the ordinate and space on the abscissa.
By adding an initial speed to the object, we can reproduce ...
2
votes
2
answers
462
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Newtonian gravity as curvature of space
Since Newtonian gravity is also indistinguishable from acceleration, it should be possible to formulate it as a curvature in space, right? For example, if a body changes velocities purely under the ...
-5
votes
1
answer
668
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How can two objects with the same mass attract each other?
According to Einstein's theory of GR, two objects with the same mass won't atract each other, Why i'm saying this? The atraction according to GR happens because the objects with less curvature of ...
1
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1
answer
358
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Curvature in the Newtonian Gravity
Let me give a little bit of insight. I was trying to calculate the geodesic of different curves when I realised some relation (if I can call it like that), between General Relativity and Newton's Law ...
3
votes
1
answer
208
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Attemp to encode newtonian gravitation as 3-dimensional space curvature
In lecture 9 of this series of lectures, Professor Frederic Schuller (around time 24:00) is trying to answer the question about the possibility to interpret newtonian gravity as a three-dimensional ...
6
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9
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3k
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According to general relativity planets and Sun bend the spacetime (explaining gravity), but does this hold true for smaller objects?
According to general relativity planets and the sun bend spacetime, and that is the explanation of gravity. However, does this hold true for smaller objects, like toys, pens, etc.? Do they also bend ...
2
votes
4
answers
646
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How can one understand with an example that Newton's law(s) fail in a curved space?
Is it true that Newton's law is not valid in curved spaces? If yes, how can I understand it and explain to a high school student preferably with an example? I tried to think about the motion of a ...
3
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1
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579
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A few questions about Einstein's theory involving gravity
After watching a documentary about Einstein's theory of relativity, my mind was busy trying to comprehend how space bends when space is void and not made of matter. And additionally, does his theory ...
2
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3
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293
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Newtonian space
Often, gravity in relativity is depicted as and the orbit of a celestial body around another body like a ball spinning in a deep bowl, which is said to be space influenced by the presence of a large ...