Coldest place in the universe discovered. Boomerang Nebula ~1.1°C above absolute zero.
113 replies, posted
[QUOTE=Emperor Scorpious II;42658701]Iceland better step it up, else they'll lose their name.[/QUOTE]
We already lost to Greenland.
The universe is so beautiful.
[QUOTE=Pat4ever;42658833]Depends on your definition of time. Light is most definitely slowed so relative to us time there would be slower.[/QUOTE]
I wish facepunch would stop trying to do physics.
[QUOTE=Awesomecaek;42661139]Not really.
Something having a temperature means that it basically constantly wiggles on elementary particle level. If it had no energy, it wouldn't wiggle, the particles would be perfectly still. It can't be any colder.[/QUOTE]
Due to a certain thing called thermodynamics we know that you can't have perfect stillness or 0* K
[QUOTE=Falubii;42661405]I wish facepunch would stop trying to do physics.[/QUOTE]
It almost hurts to read this thread if you even have a very limited understanding of physics. (no, light doesn't get slowed down if there are atoms nearby that are cold).
[QUOTE=EcksDee;42661430]Due to a certain thing called thermodynamics we know that you can't have perfect stillness or 0* K[/QUOTE]
Of course it's impossible to achieve in reality, but that doesn't make it any more complicated.
Wonder how it feels to be there.
[QUOTE=El Dilbert;42658765]1.1 Celsius is pretty high above absolute Keven 0.0[/QUOTE]
Oh no, Rust posters are leaking
[QUOTE=Kirbyfactor;42661452]Wonder how it feels to be there.[/QUOTE]
It simply doesn't feel.
[QUOTE=Kirbyfactor;42661452]Wonder how it feels to be there.[/QUOTE]
Is that a serious question? I really can't tell when people are joking in these threads. You'd die very quickly.
Yes you would die very quickly, but not because of the temperature. The density there is very low, as a human you would not notice any difference between there and space inside of our solarsystem. You would die very quickly because people tend to die in space for many reasons, but not because of the temperature.
[QUOTE=Kirbyfactor;42661452]Wonder how it feels to be there.[/QUOTE]
it's probably cold
Still not as cold as a summer day in Sweden.
Not as cold as the water in my toilet when it splashes to my butt
[QUOTE=Gwoodman;42661924]Not as cold as the water in my toilet when it splashes to my butt[/QUOTE]
Do you even have one after that happens?
[QUOTE=Gwoodman;42661924]Not as cold as the water in my toilet when it splashes to my butt[/QUOTE]
woah, that's a really interesting scenario
if the water was at 0 kelvin and it splashed on your butt, freezing it to 0 kelvin as well, would you be stuck in the air due to the molecules freezing in place?
[QUOTE=PredGD;42662459]woah, that's a really interesting scenario
if the water was at 0 kelvin and it splashed on your butt, freezing it to 0 kelvin as well, would you be stuck in the air due to the molecules freezing in place?[/QUOTE]
If the water is moving, is it still at 0 Kelvin?
[QUOTE=Alxnotorious;42662487]If the water is moving, is it still at 0 Kelvin?[/QUOTE]
that's right, didn't think of that. the water wouldn't be moving in the first place!
I'm curious to know if the light is frozen or if it continues outwards.
[QUOTE=Chernobyl426;42662599]I'm curious to know if the light is frozen or if it continues outwards.[/QUOTE]
It doesn't slow down at all. It's mostly a vacuum.
[QUOTE=Falubii;42663337]It doesn't slow down at all. It's mostly a vacuum.[/QUOTE]
But it wouldn't pull the light in like a black hole, it would just stop the light molecules from moving, right?
[quote](it actually looks more like a bow tie than a boomerang)[/quote]
It looks like bow ties truly are [B][I]cool[/I][/B]
[sp]I'm sorry[/sp]
[QUOTE=Rainhorror;42664169]It looks like bow ties truly are [B][I]cool[/I][/B]
[sp]I'm sorry[/sp][/QUOTE]
[video=youtube;vPGTizdGwSc]http://www.youtube.com/watch?v=vPGTizdGwSc[/video]
[QUOTE=Chernobyl426;42663347]But it wouldn't pull the light in like a black hole, it would just stop the light molecules from moving, right?[/QUOTE]
Uhh, what?
[QUOTE=Robber;42661439]It almost hurts to read this thread if you even have a very limited understanding of physics. (no, light doesn't get slowed down if there are atoms nearby that are cold).[/QUOTE]
Not that it would make a noticeable difference, but if the cold temperatures there were so cold that they formed a solid or liquid from a gas, or even a denser gas, the atoms get closer and the substance denser, the light has to "go through" more atoms in a solid or liquid medium. If the substance was higher temperature them the substance would become less dense and there would be less particles to "greet" in the photons line of fire, making light slower in the colder/denser medium than the hotter/less dense one. Of course this difference is so massively small that you would need some really high tech machines to actually know there was a difference. But thinking time actually slows down (which is not really correct usage of the term either, time moves exactly the same in all of space) is really laughable, in no way is time "slower" there.
[QUOTE=Chernobyl426;42663347]But it wouldn't pull the light in like a black hole, it would just stop the light molecules from moving, right?[/QUOTE]
light isn't a tangible thing
[QUOTE=ZombieWaffle;42664787]light isn't a tangible thing[/QUOTE]
Then why does gravity affect it?
[QUOTE=Chernobyl426;42664934]Then why does gravity affect it?[/QUOTE]
take a really taut bedsheet and roll a tennis ball on it = tennis ball rolls straight but warps a small part of the bedsheet as it rolls
now if you drop a bowling ball on the sheet it warps a large part. if you roll a pingpong ball near the bowling ball, the pingpong ball will curve even though it's not being affected by the bowling ball
EVERYONE JUST STOP YOU'RE OUT OF CONTROL
[editline]27th October 2013[/editline]
[QUOTE=Chernobyl426;42663347]But it wouldn't pull the light in like a black hole, it would just stop the light molecules from moving, right?[/QUOTE]
A particle of light is called a photon. Particles of dust in a nebula are not massive enough to curve space-time around them, so light is not affected.
[QUOTE=supersoldier58;42664391]Not that it would make a noticeable difference, but if the cold temperatures there were so cold that they formed a solid or liquid from a gas, or even a denser gas, the atoms get closer and the substance denser, the light has to "go through" more atoms in a solid or liquid medium. If the substance was higher temperature them the substance would become less dense and there would be less particles to "greet" in the photons line of fire, making light slower in the colder/denser medium than the hotter/less dense one. Of course this difference is so massively small that you would need some really high tech machines to actually know there was a difference. But thinking time actually slows down (which is not really correct usage of the term either, time moves exactly the same in all of space) is really laughable, in no way is time "slower" there.[/QUOTE]
I don't think these dust clouds are contracting due to change in temperature. They are in a vacuum and spread very far apart, so I really don't think that there is going to be any refraction. Also if you're suggesting that time is universal, that's wrong too.
[QUOTE=ZombieWaffle;42664787]light isn't a tangible thing[/QUOTE]
Then how do see anything?[QUOTE=Chernobyl426;42664934]Then why does gravity affect it?[/QUOTE]
Massive objects warp space-time. Light travels in a straight line, but the space it's traveling through is bent.
