Is Gravity a Fictitious Force Only Valid in Quantum Physics?

In summary: Concepts such as "quantum gravity" are generated by people who just don't understand General Relativity. Sure, they'll cite the Standard Model, but the reality is that they just can't contemplate a force as being something other than non-Newtonian. What otehr reason is there for the Graviton? Relativity escapes such people, thus they must rely on the Newtonian idea of an 'action/reaction' explination for gravity, so an action/reaction particle (graviton) is born.
  • #1
Red_CCF
532
0
I'm really confused on this concept. Why is gravity considered a fictitious force and is it true that this concept is only valid in quantum physics?

Thanks.
 
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  • #2
According to general theory of relativity, gravity is to be identified with the curvature of spacetime. It's not fictitious in either of classical & quantum physics.
 
  • #3
Eynstone said:
According to general theory of relativity, gravity is to be identified with the curvature of spacetime. It's not fictitious in either of classical & quantum physics.

Probably he was asking about the recently famous entropic force.
This was proposed by Verlinde, you could easily download it from Arxiv.
I don't understand it much, but there are plenty of papers after Verlinde's first paper.
But, basically, it states that gravity is an emergent phenomena due to the gradient of information caused by quantum gravity.
It seems to be easy to write a paper by entropic force idea but to be hard to understand it.
 
  • #4
ismaili said:
Probably he was asking about the recently famous entropic force.
This was proposed by Verlinde, you could easily download it from Arxiv.
I don't understand it much, but there are plenty of papers after Verlinde's first paper.
But, basically, it states that gravity is an emergent phenomena due to the gradient of information caused by quantum gravity.
It seems to be easy to write a paper by entropic force idea but to be hard to understand it.

Concepts such as "quantum gravity" are generated by people who just don't understand General Relativity. Sure, they'll cite the Standard Model, but the reality is that they just can't contemplate a force as being something other than non-Newtonian. What otehr reason is there for the Graviton? Relativity escapes such people, thus they must rely on the Newtonian idea of an 'action/reaction' explination for gravity, so an action/reaction particle (graviton) is born.
 

1. What is meant by "gravity as fictitious force"?

Gravity as fictitious force refers to the concept in physics that gravity is not a real force, but rather a consequence of the curvature of spacetime caused by massive objects. This concept was first proposed by Albert Einstein in his theory of general relativity.

2. How does the idea of "gravity as fictitious force" differ from traditional Newtonian gravity?

In traditional Newtonian gravity, gravity is considered a force that exists between two objects with mass. However, in the concept of "gravity as fictitious force", gravity is not a force, but rather an effect of the curvature of spacetime caused by massive objects.

3. Is there any evidence to support the idea of "gravity as fictitious force"?

Yes, there is a significant amount of evidence that supports the concept of "gravity as fictitious force". One of the most notable examples is the phenomenon of gravitational lensing, where the path of light is bent due to the curvature of spacetime caused by massive objects.

4. How does the idea of "gravity as fictitious force" impact our understanding of the universe?

The concept of "gravity as fictitious force" has greatly impacted our understanding of the universe. It has allowed us to better explain and predict the behavior of objects in space, such as the path of planets and the motion of galaxies. It has also led to the development of the theory of general relativity, which has been confirmed by numerous experiments and observations.

5. Is the concept of "gravity as fictitious force" widely accepted in the scientific community?

Yes, the concept of "gravity as fictitious force" is widely accepted in the scientific community. It is a fundamental principle in modern physics and has been extensively tested and confirmed through experiments and observations. It is also a key component of our current understanding of gravity and the structure of the universe.

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