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They both fit the data equally well, with the debatable exception of the cosmic microwave background, which debatably provides an absolute rest frame, thereby v
by Ono-Sendai 3y ago
They both fit the data equally well, with the debatable exception of the cosmic microwave background, which debatably provides an absolute rest frame, thereby violating the SR postulate that all rest frames have the same laws of physics.
- AnimalMuppet 3y agoBut doesn't the negative result of the Michaelson-Morley experiment disprove the ether theory? Relativity explains that and ether does not.
- Ono-Sendai 3y agoNo, it doesn't disprove it. The results can be explained by the measuring apparatus undergoing length contraction and/or time dilation.
- Teever 3y agoAll the time, every time the experiment is run in all the locations that it has been run in? Where would we have run the experiment to confirm/deny the association you're describing?
- Ono-Sendai 3y agoYes, all the time and every time, that's how relativistic time dilation and length contraction works. Time dilation and length contraction are predicted by Maxwell's electromagnatic theory, it's no surprise they happen. EDIT: not sure if you are familiar with relativistic length contraction and time dilation or not
- AnimalMuppet 3y agoYou're using relativistic time dilation and length contraction to claim that Michaelson-Morley can be explained without relativity? Your logic sounds rather shaky there...
- Ono-Sendai 3y agoTime dilation and length contraction are a feature of Lorentz Ether theory too. Even old-school Maxwell's equations predict it.
- Teever 3y agoThe time dilation is constant everywhere always?
- Ono-Sendai 3y agoTime dilation is a function of your speed through the ether.
- Teever 3y agoSo that leads us back to my original question: Where would we have run the experiment to confirm/deny the association you're describing?
- Ono-Sendai 3y agoNot sure what association you mean. Time dilation? length contraction? Both are well supported by evidence AFAIK.
- Teever 3y agoI don't believe that someone who is capable of writing the comments that you're writing can't actually understand what I wrote. What is your most charitable interpretation of what I just asked you?
- Ono-Sendai 3y agoIt is pretty hard to measure length contraction when all your measuring rulers also contract, and it's pretty hard to measure time dilation when all your clocks run slow, yes. That is the conundrum of being embedded in the universe :)
- Teever 3y ago[flagged]
- pdonis 3y ago> the cosmic microwave background, which debatably provides an absolute rest frame It does no such thing. An "absolute rest frame" would be a rest frame that is inherent in the laws of physics, independent of the distribution of matter and energy. The CMBR only provides a "rest frame" in terms of its distribution of energy, and any piece of matter or energy will do that. For example, you, as a piece of matter, define a "rest frame"--does that mean your rest frame is absolute? Of course not.