Nugatory's latest activity
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Nugatory replied to the thread A Is the constancy of c a postulate or a derivable theorem?.And this is why the ether was hypothesized in the first place, and the motivation for the MM experiment which would detect it. At least...
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Nugatory reacted to jbriggs444's post in the thread I What does equiprobable mean in the context of thermal motion? with
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I see no contradiction. I see consistency. The probability that ##10^{23}## independent samples drawn from a normal distribution with... -
Nugatory replied to the thread I What does equiprobable mean in the context of thermal motion?.There is a reason why Google AI and other LLMs are not acceptable sources here. Stop quoting them, stop wasting your time trying to...
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Nugatory replied to the thread I How do non-diagonal indices of a metric allow for local flatness?.In coordinate-independent language, it means that the Riemann curvature tensor is zero at that point (and "close enough" to zero nearby).
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Nugatory replied to the thread B What reference frame is used for the velocity v in the Lorentz transformation?.You might want to start by working through the Twin Paradox FAQ...
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Nugatory replied to the thread B What reference frame is used for the velocity v in the Lorentz transformation?.It can be even simpler (and may have been what @Ibix was doing way back in #2 of this thread): Remove the earth and its gravitational...
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Nugatory replied to the thread I How do non-diagonal indices of a metric allow for local flatness?.Minkowski spacetime and Minkowski coordinates are different things. The spacetime is what it is no matter what coordinates we use to...
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Nugatory replied to the thread B What reference frame is used for the velocity v in the Lorentz transformation?.No. the original form, published in the same 1905 paper in which Einstein introduced special relativity, involved circular motion (and...
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We don't. Prevailing opinion is that GR stops being an accurate model somewhere inside (or possibly even outside, although I think...
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Nugatory replied to the thread B What reference frame is used for the velocity v in the Lorentz transformation?.That is a very common misunderstanding, one that unfortunately has been repeated over and over by well-meaning people trying to explain...
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Nugatory replied to the thread B What reference frame is used for the velocity v in the Lorentz transformation?.Yes, because you have posed a complicated problem, likely much more complicated than you realize. It might be helpful if you could tell...
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Nugatory replied to the thread B What reference frame is used for the velocity v in the Lorentz transformation?.The Lorentz transformations are used to transform between the coordinates used with one inertial frame and the coordinates used with...
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Nugatory replied to the thread I How to explain the strange pulsar in the Crab Nebula?.The question in the original post has been answered, so this thread will remain closed.
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Nugatory replied to the thread B Schrödinger's cat question.The point of the thought experiment was to show that something was wrong with the then current (mid 1920s) understanding of QM - the...