Theory of Relativity & Gravity: Is Space Pushing Us to Earth?

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Discussion Overview

The discussion centers around the interpretation of gravity in the context of general relativity, specifically whether gravity can be understood as a force exerted by space pushing objects towards Earth. Participants explore the implications of general relativity compared to Newtonian gravity.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions if gravity is the force of space pushing objects to Earth, expressing uncertainty about their understanding of the theory.
  • Another participant asserts that general relativity does not support the idea of gravity as a push from space.
  • A different reply explains that in general relativity, gravity is not a force but rather the result of objects following straight-line paths in space-time.
  • Further clarification is provided that Newtonian gravity describes gravity as a force due to attraction, while general relativity describes gravity as the result of following geodesics in curved space-time.

Areas of Agreement / Disagreement

Participants express differing views on the nature of gravity, with some supporting the idea that gravity is a force while others argue it is a consequence of space-time geometry. The discussion remains unresolved regarding the interpretation of gravity in relation to space.

Contextual Notes

Participants exhibit varying levels of understanding of general relativity and its implications for gravity, leading to potential misunderstandings about the nature of gravitational forces and space-time paths.

CollinsArg
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It may be a silly question because I'm not sure if I really understand the result of this theory, but does it say that gravity is the force of the space pushing us to earth? If it is so I have a question that I'll edit here! thank you
 
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CollinsArg said:
does it say that gravity is the force of the space pushing us to earth?
No, general relativity does not say that.
 
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CollinsArg said:
It may be a silly question because I'm not sure if I really understand the result of this theory, but does it say that gravity is the force of the space pushing us to earth? If it is so I have a question that I'll edit here! thank you
It says that the "push to Earth" is just following a straight-line path in space-time. There is no "push" needed, since objects will naturally follow a straight-line path.
 
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@CollinsArg, just to expand slightly on what FactChecker said, Newtonian theory says that gravity is a force that is the result of the natural attraction of two bodies. GR on the other hand says that what we call "gravity" is not a force, it is just the natural result of objects following space-time geodesics created by mass. In GR, your body is following a natural geodesic towards the center of the Earth but the surface of the Earth stops you from following that path.
 
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