So, this post helped me appreciate the depth of theory around this question. Here are my take-aways:
Acoustic modeling can be accomplished based on assumptions about the primordial-plasma universe.
Such models give different values for dominate sound wavelengths based on its spatial curvature...
The Wilkinson Microwave Anisotropy Probe (WMAP) measured temperature differences across the sky in the cosmic microwave background (CMB). See --->(Wikipedia: https://en.wikipedia.org/wiki/Wilkinson_Microwave_Anisotropy_Probe#Main_result)
From these observations researchers concluded that the...
Here are some guesses:
Low-angle impacts would be less energetic because they have traveled further through the atmosphere. This would slow them down and burn off mass.
Earth's gravity would bend their final trajectory into a more vertical path as they approach, if they survive.
Also...
I need to make a correction: The delayed-choice experiment I considered here wasn't Abner Shimony's. He discusses these experiments in a Scientific American article that I had saved from decades ago. Shimony credits these experiments to two independent groups: First, to Caroll O. Alley, Oleg G...
No, because I wouldn't purposely mislead you. And besides, my point isn't about the order of events. It's about all of these events, from emission to absorption, approaching simultaneity as measured from a series of reference frames where v is approaching c.
Limit theory is based on...
Thanks for your quick reply! I intend to study your response more thoroughly, but first, a possible clarification:
Isn't it valid to consider an idealized spacetime diagram (S) of this experiment like this:
And to imagine that Shimony's world line is the ct axis. Now we have a proper time for...
Thank you very much for your response. It has focused my study and thinking. I would appreciate any comments on the following conjectures. I hope I haven't left this thread fallow for too long.
If we can stick with classical spacetime:
ΔΓ=ΔT/ϒ
Relates proper time differences between two...
Thanks for your response, and please consider the following humble questions: It seems to me that measuring when a photon arrives at a position, and assuming you know when a photon "passes" that position are two different things; especially in experiments which seem to highlight the importance...
In Abner Shimony's paper "The Reality of the Quantum World", the choice between particle detector and wave interference detector is said to be made "after the photon had interacted with the beam splitter".
A: Isn't it true that, at light speed, time is not passing for the photon? And so, with...
I was questioning how local structures (e.g. atoms) are exempted from the 'space expands' story - without using any waving of hands. Even a few sentences of the orthodoxy might help me with this.
First question: Changing atom size is also a problem in models where space 'expands', but that problem is addressed by waving of hands about local forces. Do such local forces only mitigate such 'expansions', or do the local forces include specific terms to cancel the universal expansion...
A further question on this subject:
The prevailing BB story is based on an expansion of space itself; with distances simply becoming greater over time (at least where local forces don't dominate).
Is this really any different than simply changing the distance metric? And alternately, since...
Math is the handmaiden of Science, not the queen of Science.
Put another way: Math is analytical. Science is empirical. Math deals with proofs. Science deals with tests. If a scientific theory is not open to refutation by tests, then it is not science.
By some definitions, a TOE would be a...