Report, edit, etc...Posted by notnuclearrabbit on 2004-12-16 at 21:20:31
I was wondering if there's any connection between the speed of light, and absolute zero. Isn't the speed of light the greatest speed that anything can move at? If so, wouldn't absolute zero be the exact opposite of this? At absolute zero, there is no movement, not even at the atomic level. So, the speed of light is the opposite of absolute zero?
Report, edit, etc...Posted by BeeR_KeG on 2004-12-16 at 21:28:59
There is slight relation between the two.
The faster you move the hotter you get.
Temperature is how fast molecules move.
But how fast an object moves is totaly different. You could throw a block with 0K temperature, it's moving but the temperature is the same. Assuming that the neviroment and your hand are 0K.
There is a slight relation between the two but it's almost irrevelant since you have extremely cold asterioids like -150°C moving through space at thousands of kilometers per second.
The faster you move the hotter you get.
Temperature is how fast molecules move.
But how fast an object moves is totaly different. You could throw a block with 0K temperature, it's moving but the temperature is the same. Assuming that the neviroment and your hand are 0K.
There is a slight relation between the two but it's almost irrevelant since you have extremely cold asterioids like -150°C moving through space at thousands of kilometers per second.
Report, edit, etc...Posted by SaLaCiouS(U) on 2004-12-16 at 22:04:06
The speed of light is the speed limit of the Universe. This is momentum. You can easily have 0 momentum. I have it right now, I'm sitting in this chair, not moving.
Absolute zero is when something has no Kinetic Energy, even at an atomic level, which is also easily reached. Without Kinetic Energy, something doesn't exist. So.. anything that does not exist is at absolute zero.
Absolute zero is when something has no Kinetic Energy, even at an atomic level, which is also easily reached. Without Kinetic Energy, something doesn't exist. So.. anything that does not exist is at absolute zero.
Report, edit, etc...Posted by CheeZe on 2004-12-16 at 22:34:02
It's impossible to reach absolute zero.
OK I removed the other crap so whatever
Yup, it's impossible to reach absolute zero. To have absolute zero is to have 0 volume with a given mass. w00t, divide by zero error. Undefined Density, I like
OK I removed the other crap so whatever
Yup, it's impossible to reach absolute zero. To have absolute zero is to have 0 volume with a given mass. w00t, divide by zero error. Undefined Density, I like
Report, edit, etc...Posted by High on 2004-12-16 at 23:03:06
This is sort of on topic - rabbit said that Light speed is the fastest something can move - is it physically possible to go faster than light?
Report, edit, etc...Posted by EzDay281 on 2004-12-16 at 23:12:21
I've never understood why faster-than-light-speed travel is considered impossible.
Could someone tell me?
Could someone tell me?
Report, edit, etc...Posted by phlemhacker99 on 2004-12-17 at 12:04:38
QUOTE(nuclearrabbit @ Dec 16 2004, 09:20 PM)
I was wondering if there's any connection between the speed of light, and absolute zero. Isn't the speed of light the greatest speed that anything can move at? If so, wouldn't absolute zero be the exact opposite of this? At absolute zero, there is no movement, not even at the atomic level. So, the speed of light is the opposite of absolute zero?
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It depends on who you talk to. Einstiens theorys say yes there is a maximum speed. However things like warp drives make space itself go around the ship, not he ship itself go faster than light thus making it seem like you are going faster than light.
QUOTE(EzDay2 @ Dec 16 2004, 11:12 PM)
I've never understood why faster-than-light-speed travel is considered impossible.
Could someone tell me?
[right][snapback]111434[/snapback][/right]
Could someone tell me?
[right][snapback]111434[/snapback][/right]
If you look up Einsteins theorys it should tell you. A book called The Eligant Universe explains it very well.
Report, edit, etc...Posted by Mini Moose 2707 on 2004-12-17 at 16:05:36
I've actually heard of absolute zero being created in a labratory on earth. Don't really have many details though. 
Report, edit, etc...Posted by Kow on 2004-12-17 at 16:20:44
They came like .0001 degrees close to it, but never actually reaching it 
Report, edit, etc...Posted by Staredit.Net Essence on 2004-12-17 at 16:38:45
And could anyone inform me of the point of reaching zeroness?
Of course, except for the fact that the guy will get a nobel trophy (or w/e equivalent, I forgot) for discovering yet another "great", useless thing...
Oh and BTW, could it be that, if you reach the speed of light (or go faster), then it would be technicaly impossible, bringing you to a state of absolute zero? (since faster is innexistant)...
Confusing.
Of course, except for the fact that the guy will get a nobel trophy (or w/e equivalent, I forgot) for discovering yet another "great", useless thing...
Oh and BTW, could it be that, if you reach the speed of light (or go faster), then it would be technicaly impossible, bringing you to a state of absolute zero? (since faster is innexistant)...
Confusing.
Report, edit, etc...Posted by SaLaCiouS(U) on 2004-12-17 at 16:59:05
The reason the speed of light is the speed limit of the Universe is because that's how fast a photon moves. A photon is light, yep, light is made of particles. A photon has NO mass, and I think that it's safe to assume that something without any mass whatsoever can move faster than anything else, since you can't have negative mass. That would be anti-matter.
Energy and mass are the same thing according to E = m * (c ^ 2). Mass is simply another state of energy. A photon is thus pure energy. When something is at absolute zero, this means it has no energy, meaning that anything that doesn't exist, is at absolute zero. Since you can't normally destroy mass/energy, it is thus impossible to reach absolute zero. Unless you have anti-matter, which is negative energy. Anti-matter plus matter would have the two cancel eachother out, thus you reach absolute zero through non-existence.
It is possible for "space" to expand faster than the speed of light. Hence the Universe is infinite, since we can never reach the edge no matter how fast you go. Thus it may be possible to warn the fabric of the universe, space, to move instantly from one place to another.
Energy and mass are the same thing according to E = m * (c ^ 2). Mass is simply another state of energy. A photon is thus pure energy. When something is at absolute zero, this means it has no energy, meaning that anything that doesn't exist, is at absolute zero. Since you can't normally destroy mass/energy, it is thus impossible to reach absolute zero. Unless you have anti-matter, which is negative energy. Anti-matter plus matter would have the two cancel eachother out, thus you reach absolute zero through non-existence.
It is possible for "space" to expand faster than the speed of light. Hence the Universe is infinite, since we can never reach the edge no matter how fast you go. Thus it may be possible to warn the fabric of the universe, space, to move instantly from one place to another.
Report, edit, etc...Posted by Staredit.Net Essence on 2004-12-17 at 18:40:00
Some of this makes no sense, then, since anti-matter doesn't physicaly exist... It's only an "expression" for something that never, isn't and will not exist, ever. Which brings to the (theoric) conclusion that a null state cannot be achieved...
Report, edit, etc...Posted by notnuclearrabbit on 2004-12-17 at 20:11:04
From what I've read about Einstiens work, once anything reaches light speed, it is converted to pure energy. I've heard about some Japanese experiment where they filled a pool with water, and completly sealed the room to a point where not even a photon could enter it. They set up cameras so they could record if any matter was converted. after about a month of just nothingness, they saw a flash of light, apparently, a photon had just blown out of existence. Noone has really explained this well enough for anyone to understand. Sounds kinda cool, though. If anything were to go FASTER than the speed of light, would it change dimensions? Man, this is freakin' me out...
Report, edit, etc...Posted by SaLaCiouS(U) on 2004-12-17 at 20:24:07
I heard about that experiment too.. they were trying to find out if a proton decays. The experiment failed.
Anti-matter does exist.. apparently there is some sort of "background" universe parallel to our own, and anti-matter spontaneously appears in our Universe by breaking through, especially around black holes. Amazingly, even if it is impossible to break through the barrier between the two Universes, it still is possible. If you launch particles at a wall, without enough energy to make it over teh wall, some of them will still make it over. Wierd.
Anti-matter does exist.. apparently there is some sort of "background" universe parallel to our own, and anti-matter spontaneously appears in our Universe by breaking through, especially around black holes. Amazingly, even if it is impossible to break through the barrier between the two Universes, it still is possible. If you launch particles at a wall, without enough energy to make it over teh wall, some of them will still make it over. Wierd.
Report, edit, etc...Posted by Staredit.Net Essence on 2004-12-17 at 21:20:50
We're not too far from any science fiction movies, then -.-
Report, edit, etc...Posted by DjDTM on 2004-12-17 at 23:31:25
The only thing faster than the speed of light, is the suction of a blackhole.
Absolute zero has to do with temperature. Being 0 Degrees celsius.
Absolute zero has to do with temperature. Being 0 Degrees celsius.
Report, edit, etc...Posted by High on 2004-12-18 at 00:16:15
Gravity doesnt move, it pulls things towards it, to get out of our atmosphere, we need to move fast enough so that gravity cannot pull us down. Black holes' gravity is so strong that not even light - the fastest thing can escape it
Absolute zero temperature wise is around -273 Celcius
Absolute zero temperature wise is around -273 Celcius
Report, edit, etc...Posted by SaLaCiouS(U) on 2004-12-18 at 01:10:18
Zero Kelvin, or yea, around -273 Celcius.
The pull of gravity can't make something faster than light. If you found some way to slingshot yourself around a black hole, you still wouldn't move faster than the speed of light. A black hole is just immensely dense, and the mysterious force of gravity comes into effect. Gravity is wierd, and no one can figure out why it's there in the first place. No one can figure out time, either.
The pull of gravity can't make something faster than light. If you found some way to slingshot yourself around a black hole, you still wouldn't move faster than the speed of light. A black hole is just immensely dense, and the mysterious force of gravity comes into effect. Gravity is wierd, and no one can figure out why it's there in the first place. No one can figure out time, either.
Report, edit, etc...Posted by Helios on 2004-12-18 at 11:42:01
QUOTE
This is sort of on topic - rabbit said that Light speed is the fastest something can move - is it physically possible to go faster than light?
QUOTE
I've never understood why faster-than-light-speed travel is considered impossible.
Could someone tell me?
Could someone tell me?
No its not, it will one day be possible using large amounts of energy to create wormholes, but traveling faster than light is an impossibility. Because you see every time you increase speed you gain mass. Say you are traveling in a space ship, the instant you reach light speed your mass would be infinite.
A photon does not have infinite mass because it had no mass to begin with. If it were otherwise nothing could exist because light would tear it to shreds.
QUOTE
I've actually heard of absolute zero being created in a labratory on earth. Don't really have many details though. mellow.gif
This has not happened, the person would have gotten a Nodel Prize for sure. Its impossible to reach zero Kelvin here on earth, and very nearly anywhere else in the universe. Because energy is always being transfered somehow.
In the tests of trying to reach absolute zero a new state of matter called BosEinstein was discovered. In this state all the electrons that are normally flying around atom come "crashing" down. From that state all the protons,neutrons and elctrons act as one 'super atom'.
and the physics major strikes again ! *flies off into the night...*
Report, edit, etc...Posted by Staredit.Net Essence on 2004-12-18 at 11:59:25
Okay, now you're totally in the field (maybe?).
I pertinantly remember my physic teacher(s) saying that it was perfectly possible to reach the absolute zero; not in the environment, but rather in a favorable environment... Or I was just hallucinating things.
How did we fall here anyway. I thought we were arguing about nothingness and now we fell into sub-zero temperatures? WTF...
I pertinantly remember my physic teacher(s) saying that it was perfectly possible to reach the absolute zero; not in the environment, but rather in a favorable environment... Or I was just hallucinating things.
How did we fall here anyway. I thought we were arguing about nothingness and now we fell into sub-zero temperatures? WTF...
Report, edit, etc...Posted by Helios on 2004-12-18 at 12:13:42
QUOTE
I pertinantly remember my physic teacher(s) saying that it was perfectly possible to reach the absolute zero; not in the environment, but rather in a favorable environment... Or I was just hallucinating things
Well a favorable environment would be one in which the boundaries are made of pure force or of space itself. No boundry made of matter could ever keep something at absolute zero because energy would always seep through.
QUOTE
How did we fall here anyway. I thought we were arguing about nothingness and now we fell into sub-zero temperatures? WTF...
lol
Report, edit, etc...Posted by EzDay281 on 2004-12-18 at 12:14:02
Well, the topic is about speed of light and abso zero, so I don't see why it should be a surprise that we're talking about abso zero...
Hmm...
Personally, I heard that the closest to absolute zero that's been observed is something that was 1/1000000000(billion)th of a degree off.
Hmm...
Personally, I heard that the closest to absolute zero that's been observed is something that was 1/1000000000(billion)th of a degree off.
Report, edit, etc...Posted by Staredit.Net Essence on 2004-12-18 at 12:21:58
Then everyone messed up cuz absolute zero = -273 °C, and people were refering it as "nothingness" earlier on. Completly different things.
Report, edit, etc...Posted by notnuclearrabbit on 2004-12-18 at 14:24:24
Are we saying that protons have no mass? If so, how can a laser power a satelite? If we were to ever reach absolute zero, would light slow to a stop when it was introduced to the space in which absolute zero was acheived? If this were to happen, would that show that the speed of light is NOT constant? This is getting to be kinda high level physics.
Report, edit, etc...Posted by Helios on 2004-12-18 at 14:36:47
QUOTE
Are we saying that protons have no mass? If so, how can a laser power a satelite?
Yes photons dont have mass, thats why they travel at 300,000 kilometres/per second but when hitting something simply bounce off and dont annihalate the target with kinectic energy. A laser doesnt power a satellite, the solar panels do.
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If we were to ever reach absolute zero, would light slow to a stop when it was introduced to the space in which absolute zero was acheived?
Yes that would happen, and has happened. It was on the cover of a Scientific America magazine about a year ago, they brought the photons very nearly to 0 kelvin and the photons were barely moving.
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If this were to happen, would that show that the speed of light is NOT constant?
The speed of light is only a constant in the vacuum of space. When it goes through water it is slowed down, when it travels through the air it slows down.
QUOTE
This is getting to be kinda high level physics.
Not really.. if you want high level physics check out 'Membrane theory'.