ext_148648 ([identity profile] clockmongler.livejournal.com) wrote in [community profile] damned_bulletin2009-04-03 02:35 am
Entry tags:

[totally anonymous, wat.]

Light has mass. Prove me wrong.

[Strikeouts illegible, sorry. I just...had to...]

[identity profile] bored-todeath.livejournal.com 2009-04-03 08:38 am (UTC)(link)
What? When did he actually get his own church?

I dunno. Go hold a lightbulb or something.

[identity profile] bored-todeath.livejournal.com 2009-04-03 08:50 am (UTC)(link)
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?

[anon]

[identity profile] deadlyjuliet.livejournal.com 2009-04-03 08:39 am (UTC)(link)
And the purpose of that would be what exactly?

[anon]

[identity profile] deadlyjuliet.livejournal.com 2009-04-03 08:45 am (UTC)(link)
Aahn, I was never much for the sciences. I'm afraid I'll be sitting this one out, darling.

[identity profile] chocomancer.livejournal.com 2009-04-03 08:43 am (UTC)(link)
That sounds about right, actually.

[identity profile] bthebest.livejournal.com 2009-04-03 09:47 am (UTC)(link)
I suppose insisting you specify your definitions of 'light' and 'mass' would ruin the point?

[identity profile] scarletspeedstr.livejournal.com 2009-04-03 10:38 am (UTC)(link)
...huh? What's this about?

- Wally West

[identity profile] see-my-back.livejournal.com 2009-04-03 02:34 pm (UTC)(link)
Haven't we had enough questions on the board? Does this one even have a point?

[identity profile] full-score.livejournal.com 2009-04-03 04:37 pm (UTC)(link)
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.

- Claude

[identity profile] chocomancer.livejournal.com 2009-04-03 06:00 pm (UTC)(link)
If a tree makes the sound of a tree falling in the forest, doesn't that mean it's fallen?

[identity profile] full-score.livejournal.com 2009-04-03 07:36 pm (UTC)(link)
You wouldn't know for a fact unless you've seen the fallen tree for yourself, right?

[identity profile] udo-retrovirus.livejournal.com 2009-04-03 06:23 pm (UTC)(link)
...You really want to start a physics argument here?

BULLETIN IS SRS BZNS

[identity profile] no-barbarian.livejournal.com 2009-04-04 02:05 am (UTC)(link)
No, it doesn't. Jackass.

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

[identity profile] gottabetactile.livejournal.com 2009-04-04 07:47 am (UTC)(link)
Dude you're a pirate and a scientist but you don't know what continents are? You are seriously weird man.

[identity profile] no-barbarian.livejournal.com 2009-04-04 08:32 am (UTC)(link)
Goddamnit, kid, we're not going to start this up again, are we?

Here's another proof for you:

My home = Terra
Terra's landmasses = islands
If there are only islands, then there are no "continents."

idiot

[identity profile] gottabetactile.livejournal.com 2009-04-04 08:33 am (UTC)(link)
Touchy aren't you? I was joking, man. Your world is weird though.

[identity profile] no-barbarian.livejournal.com 2009-04-04 08:42 am (UTC)(link)
Joking or not, you My world is

[identity profile] gottabetactile.livejournal.com 2009-04-04 08:47 am (UTC)(link)
Dude, chill! Seriously, why are you always so uptight?

[identity profile] no-barbarian.livejournal.com 2009-04-04 09:10 am (UTC)(link)
Why are you always such a pest?

[identity profile] gottabetactile.livejournal.com 2009-04-04 09:46 am (UTC)(link)
Just trying to make you lighten up man. It's what friends are for.

[identity profile] no-barbarian.livejournal.com 2009-04-04 05:12 pm (UTC)(link)
Lucky me.

[identity profile] totallytheseme.livejournal.com 2009-04-04 10:09 pm (UTC)(link)
He sure does.

[identity profile] 1imited-edition.livejournal.com 2009-04-06 04:57 am (UTC)(link)
If light had mass, you would be able to alter its velocity as you can any other matter's. You cannot, so it cannot have mass.
Edited 2009-04-06 05:03 (UTC)