Questions about light

Discussion in 'Physics & Math' started by jcc, Jul 24, 2015.

  1. jcc Registered Senior Member

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    412
    1. If light is photon particle, why is the strongest laser beam cannot bend a flame or move smoke?

    2. If light is em wave, why is laser beam not bending by strongest em fields?

    Thanks in advance.
     
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  3. origin Heading towards oblivion Valued Senior Member

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    If the laser were powerful enough it would move the smoke particles, like little tiny solar sails.

    Because photons do not have a charge.
     
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  5. jcc Registered Senior Member

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    412
    The laser is strong enough to cut steel plate, yet not able to bend a flame or move smoke?

    If photon has no charge, how it carries em waves?
     
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  7. origin Heading towards oblivion Valued Senior Member

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    Correct.

    A photon does not 'carry' an EM wave. A photon is an EM wave.

    It seems this is just all a bit to difficult for you to puzzle out. Sorry...
     
  8. jcc Registered Senior Member

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    412
    Why is particle beam/laser able to cut steel not able to move smoke? What the answer?

    If a photon is an em wave, how em wave knock out electron in photoelectric effect? Like sound waves knock out dust from the wall?
     
  9. Russ_Watters Not a Trump supporter... Valued Senior Member

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    Why do you think it should?
     
  10. jcc Registered Senior Member

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    If a particle beam able to cut steel, it should be able to move smoke and bend flame easily, it should be able to produce strong air flow.

    You blow a little air to kill the candle flame but you can never blow air to cut steel, am I have a point?
     
  11. AlexG Like nailing Jello to a tree Valued Senior Member

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    Here we go again with jcc.
     
  12. Daecon Kiwi fruit Valued Senior Member

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    You not even have a good grammar.

    Lasers aren't made of air.
     
  13. jcc Registered Senior Member

    Messages:
    412
    Laser is photon particle beam, those photons have momentum, able to cut through steel plate, but why not able to even move smoke particles or bend a flame?

    Isn't flame atoms should absorb photons momentum and move at photons direction?
     
  14. arfa brane call me arf Valued Senior Member

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    Do you understand why a laser beam cuts through steel? Might be a place to start.

    Of course, the same laser beam cuts through air, and smoke and flame quite easily. This is to do with steel being quite a different material, it takes a lot more heating than air or smoke does.
    Why should a flame bend if you send a laser beam through it, I have no ides.
     
  15. paddoboy Valued Senior Member

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    27,534
    Have you ever heard of a magnifying glass?
    Have you ever focused a magnifying glass between the light from the Sun and say your hand/...or a bit of paper?
    Steel is compacted atoms and is literally melted by the concentrated emission and amplification of the EMR.
    Smoke is not as dense and is pretty sparse and the LASER mostly passes through it.
     
  16. origin Heading towards oblivion Valued Senior Member

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    11,693
    How could a laser produce a strong air flow?
    No.
     
  17. origin Heading towards oblivion Valued Senior Member

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    11,693
    How do you think a laser could be able to move smoke particles or bend a flame?

    I don't see how that could happen. Why do you think that should happen?
     
  18. krash661 [MK6] transitioning scifi to reality Valued Senior Member

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    jcc, quite being a pathetic joke... YOU KNOW BETTER.
     
  19. origin Heading towards oblivion Valued Senior Member

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    11,693
    Why do you insist on asking the same questions over and over with out ever discussing or acknowledging the answers you are given? What is the answer.
    Because a photon can act like a particle.
    No.
     
  20. origin Heading towards oblivion Valued Senior Member

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    Jcc is like the 2 year old that just learned how to use the word 'why'.
     
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  21. jcc Registered Senior Member

    Messages:
    412
    How radio wave/photon hit antenna and produce current?

    The photons hit electrons in the antenna, so electrons change energy level and produce current?

    Or the photon transfer momentum/energy to electrons to produce current?
     
  22. paddoboy Valued Senior Member

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    http://www.explainthatstuff.com/antennas.html

    If you are unable to comprehend what the link explains then you need to seek attention for one or more of the following problems.
    [1] You have a serious learning/comprehension disability,[2] You are a child and as yet your learning/comprehension ability is not developed sufficiently.[3]You have an agenda that blinds you to accepted science.[4] You are trolling.
     
  23. Russ_Watters Not a Trump supporter... Valued Senior Member

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    "am I have a point"? Jeez.

    No, you am have no point. Why would a laser produce airflow?
     

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