Nugatory's latest activity
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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... -
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...
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Nugatory replied to the thread Author of 4DEU Cosmological Theory.We are happy to have you here, but please take a moment to review the forum rules about personal theories.
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One way of understanding Newton's first law is as a statement that inertial frames exist. That there is such a thing as a frame of...
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Nugatory reacted to kuruman's post in the thread B Why is the 3 body problem unsolvable? And what will happen if someone solves it? with
Like.
I think that the first manned Moon landing in 1969 was a spectacular solution to the 3-body problem. I scrimped and saved for three... -
Nugatory replied to the thread B Why is the 3 body problem unsolvable? And what will happen if someone solves it?.One particular animal, the spherical cow. Unfortunately it’s mythical.
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Nugatory replied to the thread B Newton's first law?.People routinely use the phrases "no force", "zero force", "no net force", "zero net force" interchangeably so those are, within the...
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Nugatory reacted to Averagesupernova's post in the thread I need a concave mirror with a focal length of 150 feet with Like.
It's balance was a little better than I thought it would be. The problem with a wedge in the back is there was no room to swing a hammer...
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Nugatory reacted to Averagesupernova's post in the thread I need a concave mirror with a focal length of 150 feet with Like.
I have never heard of this. A tree that is evenly loaded branch-wise generally will fall in the direction of the rope/cable if the...
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Nugatory reacted to DaveE's post in the thread I need a concave mirror with a focal length of 150 feet with Like.
Just hire a tree guy, dude. Your concave mirror isn't an antigravity device, pieces will still fall, but in a much less controlled...