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The mickelson morley says it would have no effect, but the rebka -pound disagrees.
The PR experiment would say that the red shift/blueshift should be be measurable and your absolute velocity and absolute vector would be apparent.
Something has to happen as if two light beams pass and you are riding on one of them, the other is not going 2C.
Problem is that there is no such thing as absolute velocity. Velocity is the rate of change of a distance vector. There being no absolute origin, any velocity is relative to some arbitrary origin.
The speed of light is the fastest velocity possible and yet cannot be reached by massive objects. This makes it the perfect yardstick. At a particular instant a photon is at position x. At a later time t it is at x + dx. This will not vary in a vacuum in the absence of other forces such as gravity.
Quote from: Petrochemicals on 13/10/2017 14:51:23The PR experiment would say that the red shift/blueshift should be be measurable and your absolute velocity and absolute vector would be apparent.In that particular reference frame. In other reference frames, the redshift would be measured as having a different value.QuoteSomething has to happen as if two light beams pass and you are riding on one of them, the other is not going 2C.Length contraction and time dilation.
But the point is that within the sphere with all going at equal velocity the red shift blue shift from the emitter should be apparrent. I got to time dilation last time. The observer is the readout, so if you who are travelling with the sphere and your best frien d who is observing your progress read the readout, you both observe the same reading.
Petrochemicals,I'm just trying to check that I understand the setup correctly.You have a flash bulb in the middle of a sphere.The surface of the sphere has detectors on the inside.If it's not moving, the flash from the bulb reaches the detectors at the same time.The ideas is that, if the system is moving, the light will have further to travel to the "back" of the sphere than to the "front".Is that what you mean?
Yep a lightsource in a sphere emmitting light in all directions, with sensors all the way around the sphere.The PR experiment would say that the red shift/blueshift should be be measurable and your absolute velocity and absolute vector would be apparent.
Ok so you both observe the reading, no paradoxes or anything. The readings in the sphere measure identical fore and aft ? As the sphere and you are in there own timeframe ? So if you turn your headlights on at 0.5c you see light as normal at 1c but your friend sees light al 0.5c as your friend is not at the same velocity and therefore time dilation.
Ok, assuming you + light gun and sphere are moving together. PR detects a red/blueshift if there is either a difference in gravitational potential or, by equivalence, an acceleration. If your sphere is accelerating you would feel a force as well as detecting a PR shift. If the sphere is constant velocity you won’t detect anything.At constant velocity you will only detect a shift if the sphere wall is moving relative to you/gun.PR does not disagree with MM, they are measuring different things.
No, your friend measures the light as 1c, not 0.5c. Maxwell’s equations.
Ok to the rear your friend measure the light at 1c and forward he measures the light at 1c, the constant C. Your friend as he sees you move does not/would not see a doppler efect in the light due to the emmitter being in motion, he sees the light 1c relative to the emmitter.
You however also see the light fore and aft at 1c completley independant of your friend, due to time dilation due to your clock. Does that mean you do not need relativity as you both see the light ?
Your friend sees a doppler effect if he is moving towards/away the gun because he is crossing the wave crests more/less frequently than if the gun were stationary relative.
The speed of light is the same in all references. To get an absolute speed, we need to measure with respect to the speed of light since this is a standard for all references. We make the speed of light become the zero reference. Relative reference only applies to two or more inertial references. Relative reference has no meaning at the speed of light.
So not acceleration ?
To get an absolute speed, we need to measure with respect to the speed of light since this is a standard for all references. We make the speed of light become the zero reference.