Dale's latest activity
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Dale reacted to J O Linton's post in the thread I Shape of wave function (probability distribution) of a single photon with
Like.
A photon is emitted from an excited atom at the origin. I would like to know what is the shape of the wave function or rather the... -
My learning is a bit rusty. I can intuit the answer but I can't formalize it. What does the scale read? I say the scale reads 10kg...
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Dale replied to the thread B Time dilation for two clocks at different altitudes on Earth.The important thing is the gravitational potential. Yes, the mountain has some mass, but the top is still at a higher gravitational...
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Dale replied to the thread I Topic about physics axioms, theory, laws etc...A few recent posts about clearly non-physical things have been deleted. Thank you to those who wrote good information to correct some...
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Dale reacted to Ibix's post in the thread I Energy of Electromagnetic Waves in Destructive Interference with Like.
Just to add to the above, note that the eye's response to illumination is not linear so your direct perception may be that the relative...
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Dale replied to the thread I Energy of Electromagnetic Waves in Destructive Interference.The same way the extra energy is transferred to the inner rings. The energy is transferred from the source to both sets of rings, not...
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Dale replied to the thread I Topic about physics axioms, theory, laws etc...And what physical measurement can her being queen of Australia cause in those milliseconds? Think about that carefully. What physical...
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Dale replied to the thread I Mechanism of Energy Conservation in Zero-Amplitude Sum of EM Waveforms.Exactly. And with double the magnitude of the magnetic field the total energy density is twice as large as the energy density of the non...
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Dale reacted to Surya97's post in the thread I Mechanism of Energy Conservation in Zero-Amplitude Sum of EM Waveforms with Like.
Ah, right, somehow I handwaved away the fact that the two magnetic field vectors are in the same direction if both the electric field...
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Dale reacted to berkeman's post in the thread I Mechanism of Energy Conservation in Zero-Amplitude Sum of EM Waveforms with Like.
No. You are not asking about two parallel beams propagating in the same direction. You are asking about two opposing beams -- have you...
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Dale replied to the thread I Mechanism of Energy Conservation in Zero-Amplitude Sum of EM Waveforms.It isn’t. Can you see why? Think of the Poynting vector. In the field that is not canceled. E.g. if there is complete destructive...
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Dale replied to the thread I Topic about physics axioms, theory, laws etc...EM waves can cause things. If there is a finite invariant speed then anything massless travels at that invariant speed. If there is an...
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The SM predicts CP violation in certain quark processes, which includes both mesons and baryons. As far as I can tell from the paper...
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Dale replied to the thread A Baryon CP Violation Observed at CERN.Thanks, I will be interested to see how that settles out.
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It says that is hard to tell, because calculating the terms that they need is not easy (it is a challenging chromodynamics calculation).