[totally anonymous, wat.]

[clockmongler.livejournal.com]

Light has mass. Prove me wrong.

Comments

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

[bored-todeath.livejournal.com]

What? When did he actually get his own church?

I dunno. Go hold a lightbulb or something.

[clockmongler.livejournal.com]

Light. Not a lightbulb. You happen to be doing it wrong, I am afraid.

[bored-todeath.livejournal.com]

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?

[clockmongler.livejournal.com]

What?

No.

[anon]

[deadlyjuliet.livejournal.com]

And the purpose of that would be what exactly?

[clockmongler.livejournal.com]

Simply an experiment, my dear. I am waiting for those supposed geniuses to crawl out of their holes.

[anon]

[deadlyjuliet.livejournal.com]

Aahn, I was never much for the sciences. I'm afraid I'll be sitting this one out, darling.

[clockmongler.livejournal.com]

That's quite alright.

[chocomancer.livejournal.com]

That sounds about right, actually.

[bthebest.livejournal.com]

I suppose insisting you specify your definitions of 'light' and 'mass' would ruin the point?

[clockmongler.livejournal.com]

Precisely.

[scarletspeedstr.livejournal.com]

...huh? What's this about?

- Wally West

[see-my-back.livejournal.com]

Haven't we had enough questions on the board? Does this one even have a point?

[full-score.livejournal.com]

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

[chocomancer.livejournal.com]

If a tree makes the sound of a tree falling in the forest, doesn't that mean it's fallen?

[full-score.livejournal.com]

You wouldn't know for a fact unless you've seen the fallen tree for yourself, right?

[udo-retrovirus.livejournal.com]

...You really want to start a physics argument here?

BULLETIN IS SRS BZNS

[no-barbarian.livejournal.com]

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

[gottabetactile.livejournal.com]

Dude you're a pirate and a scientist but you don't know what continents are? You are seriously weird man.

[no-barbarian.livejournal.com]

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

[gottabetactile.livejournal.com]

Touchy aren't you? I was joking, man. Your world is weird though.

[no-barbarian.livejournal.com]

Joking or not, you My world is

[gottabetactile.livejournal.com]

Dude, chill! Seriously, why are you always so uptight?

[no-barbarian.livejournal.com]

Why are you always such a pest?

[gottabetactile.livejournal.com]

Just trying to make you lighten up man. It's what friends are for.

[no-barbarian.livejournal.com]

Lucky me.

[totallytheseme.livejournal.com]

He sure does.

[1imited-edition.livejournal.com]

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.