Testing the Equivalence Principle with Spectral Anisotropies

HarryWertM
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It suddenly occurred to me that I've never heard of a test of the Equivalence Principle itself - such as something like ...

An accelerating laboratory [in space] can see very obvious effects in external astronomical observations. Depending on the rate of acceleration, there would be 'forward / backward' anisotropies in the galactic field spectra well as the CMB spectrum. If you 'hovered' over our moon, say, or 'hung' from a lunar tether at L1, would it be possible to detect spectral anisotropies looking away / towards the local gravitational field?
 
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Eotvos experiments are tests of the equivalence principle. The Eot-Wash group at UW does nothing but Eotvos experiments.
 
I guess what I really meant to ask is what would GR predict as the result for the experiment I describe. Some related questions:

1. Is there a spectral shift in images of objects observed in gravitational lensing?

2. Can you [in theory] produce a 'lensing' effect, the same as gravitation, with acceleration?
 
Thread 'Can this experiment break Lorentz symmetry?'

Thread 'Can this experiment break Lorentz symmetry?'

1. The Big Idea: According to Einstein’s relativity, all motion is relative. You can’t tell if you’re moving at a constant velocity without looking outside. But what if there is a universal “rest frame” (like the old idea of the “ether”)? This experiment tries to find out by looking for tiny, directional differences in how objects move inside a sealed box. 2. How It Works: The Two-Stage Process Imagine a perfectly isolated spacecraft (our lab) moving through space at some unknown speed V...
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Thread '1-Way Speed of Light'

Does the speed of light change in a gravitational field depending on whether the direction of travel is parallel to the field, or perpendicular to the field? And is it the same in both directions at each orientation? This question could be answered experimentally to some degree of accuracy. Experiment design: Place two identical clocks A and B on the circumference of a wheel at opposite ends of the diameter of length L. The wheel is positioned upright, i.e., perpendicular to the ground...
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Thread 'How can a black hole absorb matter?'

According to the General Theory of Relativity, time does not pass on a black hole, which means that processes they don't work either. As the object becomes heavier, the speed of matter falling on it for an observer on Earth will first increase, and then slow down, due to the effect of time dilation. And then it will stop altogether. As a result, we will not get a black hole, since the critical mass will not be reached. Although the object will continue to attract matter, it will not be a...
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