It depends on your definition of mass. Since light's made from particles with no mass (photons), you could argue that, no, light itself doesn't have mass, either.
If you're talking about relativistic mass, then you could argue it has mass.
But since a star's gravitational field can change the path of a photon, not because of a photon's mass, but because the star's mass warps space-time, then you could use that as a reason to justify a "no" answer.
And yet light contributes to the total mass if it's trapped in a box and is shining in all directions.
People might be complaining, but I think it's a pretty interesting question myself.
Photons are massless. mass = E(rest)/c2 Light is never at rest, therefore, the photons it's composed of are never at rest. If it's never at rest, it has no resting energy. If it has no resting energy, it has a mass of zero.
Why don't you try proving that it does have mass before you pull bogus physics out of your ass, smart guy? Mother above, my kid sister could do this proof when she was twelve!
[Strikeouts illegible, sorry. I just...had to...]
What? When did he actually get his own church?I dunno. Go hold a lightbulb or something.
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You happen to be doing it wrong, I am afraid.no subject
Wait.... Lig-So switch it on an off and see if it changes? Jeez, what's with you people and thinking about stupid stuff all the time?
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What?No.
[anon]
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- Wally West
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If you're talking about relativistic mass, then you could argue it has mass.
But since a star's gravitational field can change the path of a photon, not because of a photon's mass, but because the star's mass warps space-time, then you could use that as a reason to justify a "no" answer.
And yet light contributes to the total mass if it's trapped in a box and is shining in all directions.
People might be complaining, but I think it's a pretty interesting question myself.
- Claude
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BULLETIN IS SRS BZNS
Photons are massless.
mass = E(rest)/c2
Light is never at rest, therefore, the photons it's composed of are never at rest.
If it's never at rest, it has no resting energy.
If it has no resting energy, it has a mass of zero.
Why don't you try proving that it does have mass before you pull bogus physics out of your ass, smart guy? Mother above, my kid sister could do this proof when she was twelve!
-T. Bonne
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Here's another proof for you:
My home = Terra
Terra's landmasses = islands
If there are only islands, then there are no "continents."
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Joking or not, youMy world isno subject
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