Recent content by alan.b

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    Why Did We Shift from Electron Orbitals to Electron Clouds?

    I suppose all the solar system planets, moons, binary stars or whatever classical mechanics systems have this non-zero angular momentum? Can you say where does this non-zero angular momentum come from? How does QM predict zero angular momentum? Thank you.
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    Why Did We Shift from Electron Orbitals to Electron Clouds?

    Ok, thank you. - why electrons in QM not radiate, or do they? - how does synchrotron read electron radiation? - what kind of radiation electrons emit, how often? - is it not electron the most elementary amount of electric charge, so how can the smallest amount of something, that has no...
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    How does classical mechanics change if motion was not infinitely differentiable?

    Are you talking about "Achilles and the tortoise" and Zeno's paradoxes?
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    Electromagnetic wave questions

    I was thinking of different "phase". The one you create by emitting the waves with certain delay, so this time delay I was thinking it would be a "phase shift", which I believe is how it is understood or "accomplished" in regards to 'signal encoding'. I can not understand the original...
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    Why Did We Shift from Electron Orbitals to Electron Clouds?

    Atom orbitals, I mean the ones where electrons orbit proton with continuous trajectory like planets orbit around the sun. I do not mean to disagree with modern teachings nor to speculate, I simply do not see how QM actually excludes this possibility. I just want someone walk me through several...
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    Electromagnetic wave questions

    I have asked some of my colleagues, they say the phase should not spontaneously change in mid-air and that frequency has nothing to do with the possibility of some random changes of the phase. They said you should take the time to read more about wave physics, signal processing in terms of...
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    Electromagnetic wave questions

    Why would phase spontaneously change in mid-air? What does frequency have to do with the "phase change"? Can we then manipulate these same electric and magnetic fields, their phases, frequency and/or amplitudes when emitting em waves in the visible light range, or not? What is the amplitude...
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    Is Biot-Savart law the only way to calculate energy density of magnetic fields?

    Energy density is nothing more but 'potential energy' aka field potential like with gravity, only per volume area instead of per point particle, it is "approximated" with Biot-Savart in either case. Of course charges come into this, where else would you get electric fields from, and if...
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    Electromagnetic wave questions

    Maybe I missed your point, but you either must be talking about some practical and technical difficulties, or suggesting there is some additional or different physics involved with em waves of higher energies like visible light. If he is talking about practical approach, he might be right...
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    Is Biot-Savart law the only way to calculate energy density of magnetic fields?

    Hold on a second. There is this velocity vector having very intimate relation with the magnetic field. Both, magnetic field and magnetic force magnitude are proportional, and perpendicular, to the velocity vector, so where is this 'v' in that formula, where did it go? That can...
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    Newton's Third Law and Acceleartion

    You are right, those laws are terribly worded and 3rd law is superfluous having the 2nd law, i.e. explanation of the 3rd law is in the 2nd law: F=m*a. Because to have whatever force we need to have at least TWO objects interacting, let's take two most elemental particles. Take large mass proton...
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    Is Biot-Savart law the only way to calculate energy density of magnetic fields?

    Magnitude of magnetic field B is proportional to the velocity and have geometrical relations with this vector that E does not have, therefore my conclusion is that your equation is indeed wrong, and having E and B forces acting in different (perpendicular) directions might be serious problem to...
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    Angle between current and magnetic field

    Excuse me, but I'd like to disagree with most of what has been said here, including the way question is posed, though I somewhat agree with Bob S's 1st response. We can not talk about the force before we actually consider the properties of the SECOND particle or wire. We can talk about...
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    Electromagnetic wave questions

    Please, explain: - What statement you consider speculation? - What are my problems and misconceptions? I like to learn, that's why I took time and came here to ask about it, do you mind? I know how information can be encoded, there are many ways just like you explained previously, some...
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    Electromagnetic wave questions

    Thanks for all the input. I call that "digital and localized" vs "analog and continuous". Originally I wanted to talk about very simplified example of transmitting certain movie (collection of images) with certain resolution and frame rate in a given time. I wanted to look at this situation...
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