Dale's latest activity
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Dale reacted to DaveC426913's post in the thread A three month long summer vacation from public school seems stupid with
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I think the assumed alternative is one or two weeks three to four times per year. Same amount of time off, just spread around. -
Dale replied to the thread I Synchronizing clocks in an inertial frame if light is anisotropic.It was surprising to me also. I assumed that there would be fictitious forces that would come into play when making a U turn, for example.
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Dale replied to the thread I Synchronizing clocks in an inertial frame if light is anisotropic.And my position is that it is wrong to call that quantity just "KE". That should be identified as "KE relative to the detector" or "KE...
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Dale replied to the thread I Synchronizing clocks in an inertial frame if light is anisotropic.Sorry it took me so long to respond to this. I had to dig back through my notes more carefully. What I have in my notes is indeed...
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Dale replied to the thread I Synchronizing clocks in an inertial frame if light is anisotropic.I still disagree with this. KE in a specified frame is measurable. Not KE.
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Dale replied to the thread I Synchronizing clocks in an inertial frame if light is anisotropic.I would agree with that view. There are no non-zero Christoffel symbols in an Anderson frame, hence no fictitious forces. So Newton’s...
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Dale replied to the thread I Synchronizing clocks in an inertial frame if light is anisotropic.That is indeed an invariant, but it is not equal to ##\frac{1}{2}mv^2## in a frame with an anisotropic speed of light.
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Dale replied to the thread I Synchronizing clocks in an inertial frame if light is anisotropic.No, KE is frame dependent and the measurement of a calorimeter is frame independent. That is a different quantity. It requires a...
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Dale replied to the thread I Synchronizing clocks in an inertial frame if light is anisotropic.A calorimeter doesn’t measure KE.
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Dale replied to the thread I I don't see how a black hole's event horizon can be crossed.At this point I think this thread is unlikely to provide any further educational value. Thank you for everyone who contributed.
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Dale reacted to Ibix's post in the thread I I don't see how a black hole's event horizon can be crossed with Like.
The question you need to answer is what you want out of the discussion. If you want facts about black holes then almost any source is...
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Dale reacted to Foretranimal's post in the thread I I don't see how a black hole's event horizon can be crossed with Like.
It is hard, if not impossible, to maintain an openness to learn anything when you sincerely ask someone where they are making a mistake...
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Dale replied to the thread I I don't see how a black hole's event horizon can be crossed.It was. We are supposed to be an educational site. That is our stated goal and mission. I hope my colleagues here can look at your...
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Dale reacted to Foretranimal's post in the thread I I don't see how a black hole's event horizon can be crossed with Like.
That would be the clever insult Dirac threw at a student who made a wild guess about the wavelength of visible light when he didn't...
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Dale reacted to Greg Bernhardt's post in the thread Insights What Exactly is Dirac’s Delta Function? - Insight with Like.
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum...