- #1
anand
- 37
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I read recently about an analogy to how general relativity tries to picture gravity.
Its the one about a rubber sheet and a heavy sphere placed on it deforming it to cause a depression.Another ball in the region will tend to move towards this depression .But doesn't this assume the existence of a force which does this(gravity),which is what we are trying to picture in the first place?So isn't this analogy wrong?
Also according to relativity, gravity is a deformation of spacetime and is not really a force like others.But quantum theory pictures it the other way as a force due to interaction through graviton.How do you explain this contradiction
Its the one about a rubber sheet and a heavy sphere placed on it deforming it to cause a depression.Another ball in the region will tend to move towards this depression .But doesn't this assume the existence of a force which does this(gravity),which is what we are trying to picture in the first place?So isn't this analogy wrong?
Also according to relativity, gravity is a deformation of spacetime and is not really a force like others.But quantum theory pictures it the other way as a force due to interaction through graviton.How do you explain this contradiction