Does light have mass?

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Thread: Does light have mass?

  1. #1
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    Lightbulb Does light have mass?

    Do you think light has mass? I do. If you don't you're an idiot.

    edit
    does light have relative mass is what I was getting at and if you don't think it has mass, then you are an idiot.
    /edit

  2. #2
    Senior Member RoadClosed's Avatar
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  3. #3
    Webius Designerous Indiginous
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    <---- an idiot

  4. #4
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    Me --> Idiot with degree in physics . . . .

  5. #5
    Senior Member RoadClosed's Avatar
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    <-------- advanced idiot with labotomy
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  6. #6
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    O kI guess I will join with the greatest scientific minds of our age as an idiot and say that light has no mass.
    Who is more trustworthy then all of the gurus or Buddha’s?

  7. #7
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    I told you, clintonsucks, but don't listen to me....

  8. #8
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    Actually I think light does have Mass. clintonsucks is a jerk for phrasing his question in such a way that it would cause anger amongst fellow geeks. Light has mass because it is a particle wave. It follows both the actions of a wave and a particle therefore it could have mass. But it is also assumable that it does; either way measuring the mass of light would be difficult if not impossible. Thats just my opinion, so don't flame me.
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  9. #9
    Macht Nicht Aus moxnix's Avatar
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    There is a reproduceable experment that shows light does have mass. You must have a very sensitive scale, a transparent near vacume enclosure, and a very strong light source.
    I read an artical on this in 'Scientific American' and seen the experiment reproduced on some TV show (perhaps 'Discovery' or 'PBS' (sorry, I don't remember exactly where)
    The scale will show that light striking the scale will cause it to show a weight, and when the light is removed, the weight goes away.
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  10. #10
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    Now then, do I join with the rest of the scientific world, and most of hte respondents here, or do I go with someone who considers those who don't agree with them to be idiots?

    Tough one there.

    moxnix - the first link that RoadClosed posted suggested a reason why this experiement would appear to have mass - because it has momentum without mass, and can therefore exert a pressure on a scale ( if I understood the article right ).

    Does anyone want to support the idea? I would be interested in arguments in favour, that did not relate to my inteligence level.

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