About mvb

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About mvb
Birding, Photography
Professor Emeritus of Physics, U. Del.


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10-02-2014 11:48 PM
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  1. mvb
    mvb liked post by lpetrich On thread : Question about Quarks
    Seems to me that Neil deGrasse Tyson got it wrong. Quarks have a quantum number called "color", because it has 3 possible values, and because they mix to form a plain state. So an up quark can be...
    Liked On: 06-28-2014, 12:39 AM
  2. mvb
    mvb liked post by KJW On thread : Why did Einstein modify EFE?
    In this instance, I'm not too sure. Electromagnetism appears to me to be the consequence of the equivalence of scalar quantum wavefunctions under the transformation: \Psi' = \Psi\ e^{i\phi} ...
    Liked On: 03-29-2014, 08:58 PM
  3. mvb
    mvb liked post by KJW On thread : Does modern Quantum Theory make sense?
    I take the somewhat different view that the universe ultimate does make sense, and that it simply requires the development of one's knowledge so as to have an expanded notion of what does make sense.
    Liked On: 03-16-2014, 12:19 AM
  4. mvb
    mvb liked post by Sharper On thread : How do we define "space"?
    Is there such a thing as nothing? I can't think of a place where a star is not shining, there is no gravitational field, no neutrinos, no cosmic background noise, no radiation, no light, no...
    Liked On: 03-03-2014, 04:23 PM
  5. mvb
    mvb liked post by MaxPayne On thread : Basic Questions
    I am not sure if I am qualified to answer this. From what I have read and seen, the speed of light is constant even inside the material, provided there is no absorption and re-emission of light by...
    Liked On: 03-01-2014, 11:07 PM
  6. mvb
    mvb liked post by MaxPayne On thread : Basic Questions
    :p I didn't see the video, but anyway this is what "I think" I had been told when I posted that question referring to the same experiment. Light can't be stopped or slowed down. All they did was...
    Liked On: 02-19-2014, 08:25 PM
  7. mvb
    mvb liked post by Jilan On thread : Hw help!
    Sumaiya, do you know any equations that have the distance and the acceleration in them? ,
    Liked On: 02-03-2014, 08:35 PM
  8. mvb
    mvb liked post by KJW On thread : nucler physics
    I don't think either neutron emission or alpha emission are regarded as fission. Fission is when a nucleus splits into two more-or-less equal fragments. Generally speaking, the heavier the...
    Liked On: 01-20-2014, 08:32 PM
  9. mvb
    mvb liked post by Jilan On thread : Energy and force
    Generally yes you do, but that's got more to do with the way our joints, tendons and muscles work. If all your joints were fused together and you were attached rigidly on the floor you could carry...
    Liked On: 12-30-2013, 07:37 PM
  10. mvb
    mvb liked post by KJW On thread : particle place
    It's one particle and it can be at many places at once. For a solid object, a particle's location will be constrained by the other particles of the object by the forces that hold the object together,...
    Liked On: 12-02-2013, 11:35 PM
  11. mvb
    mvb liked post by Markus Hanke On thread : SPLIT : Special Relativity and Ether
    Actually, it perfectly reflects the modern understanding of what a photon is, based on quantum field theory; photons are excitations of the electromagnetic field. More specifically they are the gauge...
    Liked On: 11-14-2013, 10:36 PM
  12. mvb
    mvb liked post by Markus Hanke On thread : Studying Physics as a Hobby
    Ha ha, I am not a real-life profession has nothing whatsoever to do with science. I am were I am merely out of a personal interest and passion. For me it all started when I was given a...
    Liked On: 11-02-2013, 02:50 PM
  13. mvb
    mvb liked post by Jilan On thread : Double split experiment question
    For at least 24 hours!;)
    Liked On: 10-26-2013, 03:43 PM
  14. mvb
    mvb liked post by Jilan On thread : I have a question about eigenstates of an operator.
    It will have a definite value of x^2, (say 9), but not x, (say it could be +3 or -3).
    Liked On: 10-22-2013, 07:40 PM
  15. mvb
    mvb liked post by KJW On thread : Three Clock Puzzle
    In the frame of reference of the moving third clock, let \tau be the elapsed time of this clock. The amount of time elapsed by the second clock since the first clock met the third clock (simultaneity...
    Liked On: 08-01-2013, 09:28 PM
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