Flashlight at the speed of light

Discussion in 'Physics & Math' started by Magical Realist, Jul 17, 2015.

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  1. GeoffP

    GeoffP Caput gerat lupinum Valued Senior Member

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    I do quite agree. The sad conclusion I think is closing in is that we are stuck on our own little lifeboat here.
     
    GeoffP, Jul 23, 2015
    #61

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  3. GeoffP

    GeoffP Caput gerat lupinum Valued Senior Member

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    Can they be given artificial mass? Even transiently?
     
    GeoffP, Jul 23, 2015
    #62

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  5. Bruinthor

    Bruinthor Registered Member

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    Try googling helium hyperfine structure.

    The energy spectrum of such transitions can be calculated without reference to any sort of superluminal effects
     
    Bruinthor, Jul 23, 2015
    #63

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  7. James R

    James R Just this guy, you know? Staff Member

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    No.

    You can have interactions between two photons if other particles (e.g. matter) are involved.
     
    James R, Jul 24, 2015
    #64
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