I am having difficulty understanding the Gravitational Time dilation formula. As per my understanding, clock should run faster as we move away from the gravitational field. But when I am applying the formula, I am getting the opposite result. Please see the attached formula.
As r increases ...
We know that induvidual nucleons are heavier than the nucleus. So Nucleons
should have more gravitational potential energy with respect to the rest of the universe than the nucleus. Doesn't this violate the law of conservation of energy ?
Scientists are doing experiments to find any change in the Fine Structure constant in the past.
It is dependent on the following constants.
C (Velocity of Light)
e (Charge of the electron)
E0 (Permittivity of free space)
h (plancks constant)
Could you pls let me know which of the...
Thanks for explaining. If the entire redshift is attributed to its distance then why time dilation has not been observed similar to 1a supernova ? Is there something fundamental with Qusars that we didnt understand ?
Does anyone know how much percentage of the total redshift of a quasar is contributed by Gravitational redshift considering light from the Quasar is emitted by heavy active galactic nuclei ?
If there is a significant contribution from gravitational redshift then how will the Hubbles law hold...
What he meant was reduction in velocity of light is just relative not absolute.
Example:
Suppose we are doing two experiments to find the velocity of speed of light
on Earth and Moon then both will get the same value C but velocity of light on the Earth measured from moon will be lower due...
I found an interesting explanation for rotational speed of the galaxies in the below link at section 7.1
http://www.ag-physics.org/gravity/
Can anyone comment on this ?
Yes I agree with you from the prespective of General relativity. But GR says
that universe is infinite. So is there any evidence for an infinite universe ?
From this thread, we came to know that universe will lack a center if the universe is Infinite or if it is a 4D sphere. To prove that...
I have no concerns abt general theory of relativity and I agree with time as
as fourth dimension. But here we are not discussing abt time. We are discussing something abt a Hypersphere (4D Sphere) which is a three dimensional sphere bent in a fourth spatial dimension.
The diagram depicts radiation filled universe expanding into matter filled universe. We know that the limit of the visible universe is restricted by the
velocity of light. So if that limit has not yet reached the boundary of the universe then shouldn't we see uniform background radiation ...
As per my understanding, I have created a picture of the universe with a center.
1) The inner light blue sphere contains only radiation. So its a radiation dominated universe.
2) The outer gray Sphere contains matter.
You can see in both the spheres that boundary of last scattering for...
Do you mean that different colors of the light(different energies) travel at different speeds considering velocity of light is constant in free space for all the colors ?
If the cosmic background is same in all directions then it doesn't mean that
there is no center to the universe. We see the cosmic background from the
point of last scaterring. If the point of last scaterring is within the finite universe then we should see homogenous cosmic background in all...