Theory of General Relativity: Reason for Heavenly Bodies Creating Spacetime Dent

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In summary, the theory of general relativity explains that gravitation is caused by the distortion of spacetime by heavenly bodies. This is similar to a ball creating a dent in an elastic sheet due to the force of gravity. However, the exact reason for why heavenly bodies create this distortion is still unknown and may only be answered if a more fundamental theory is discovered. The concept of "intelligent design" is sometimes used to explain questions that science is unable to answer.
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THE THEORY OF GENERAL RELATIVITY states that the gravitation is due to the fact that the heavenly bodies create a sort of dent in the spacetime fabric.

Now,
WHAT IS THE REASON THAT THE HEAVENLY BODIES CREATE SUCH KIND OF A DENT?

Let us for example take an elastic sheet and place metal ball on it. The ball will make a depression in the elastic sheet.

But, the ball creates that dent because something (i.e. the gravity of the earth) is pulling it and forcing it to create such kind of dent.

So, I repeat my question-
What is the reason that the heavenly bodies (like stars, planets, etc) create such kind of a dent in the spacetime fabric?
 
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The ball will also create a dent if the fabric is accelerated - for example, consider a 1 meter square sheet of spacetime fabric in free space and a queball located at the center - now grab the four corners and accelerate the fabric - the inertia of the queball will deform the fabric. You don't need gravity to explain gravity. If you consider the Hubble sphere as having a radial expansion c, then the Hubble volume is accelerating - and the amount of acceleration is consistent with the gravitational constant - which incidentally has units of volumetric acceleration per unit mass.

But one shouldn't take the analogy too far - the idea of a stretching spacetime fabric is metaphorical
 
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  • #3
Rainbow said:
WHAT IS THE REASON THAT THE HEAVENLY BODIES CREATE SUCH KIND OF A DENT?

...

But, the ball creates that dent because something (i.e. the gravity of the earth) is pulling it and forcing it to create such kind of dent.

So, I repeat my question-
What is the reason that the heavenly bodies (like stars, planets, etc) create such kind of a dent in the spacetime fabric?

Good question, I think we'd all like to know the answer to that. I doubt we ever will though. By definition: if a theory is fundamental, there is no further explanation possible. Only if relativity is ultimately shown to be part of an even more fundamental theory will it be superceded.

Even with your description of the ball and the dent caused by gravity, nothing is answered - because you think it is a "reasonable" explanation not requiring further elucidation. But any theory of gravity comes back to exactly the same question: Why?
 
  • #4
It is questions like this that lead to people advocating "intelligent design". That is the catchall answer to any question which science is unable to answer (at this moment).
 
  • #5
See this thread generally, and posts #4 ff specifically.
 

1. What is the Theory of General Relativity?

The Theory of General Relativity is a scientific theory proposed by Albert Einstein in 1915 to explain the force of gravity. It states that gravity is not a force between masses, but rather a result of the curvature of spacetime caused by the presence of massive objects.

2. How does the Theory of General Relativity explain the creation of spacetime dents by heavenly bodies?

The Theory of General Relativity explains that massive objects, such as planets and stars, create a dent in the fabric of spacetime. This dent is caused by the warping of spacetime due to the object's mass, which influences the path of objects moving through it. This is what we experience as gravity.

3. Is the Theory of General Relativity proven?

Yes, the Theory of General Relativity has been extensively tested and validated through numerous experiments and observations. It accurately predicts and explains the behavior of gravity, including the motion of planets, the bending of light, and the existence of black holes.

4. How does the Theory of General Relativity differ from Newton's theory of gravity?

Newton's theory of gravity, also known as the Law of Universal Gravitation, states that gravity is a force acting between two masses and is inversely proportional to the square of the distance between them. On the other hand, the Theory of General Relativity describes gravity as the curvature of spacetime caused by massive objects, without the need for a force between them.

5. What are the implications of the Theory of General Relativity?

The Theory of General Relativity has many implications for our understanding of the universe. It explains the motion of objects in space, the behavior of light, and the existence of black holes. It also provides a framework for understanding the structure and evolution of the universe on a large scale.

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