ironmaiden666 Posted August 16, 2007 Share Posted August 16, 2007 I recently watched a program on BBC4 about absolute zero, the coldest possible temperature, and it showed some really interesting things. The closest we've been to absolute zero (whcih is -273.16 celsius, also know as 0 kelvin) is within a tenth of a trillianth of it, which is 0.0000000001 kelvin. At this point the atoms became a thing called Bose-Einstein condensate, where the atoms are a wave and a particle. They made the atoms this cold by shooting them with a laser to slow them down. Does anyone else find this sort of science extremely fascinating, or am i just really geeky? :-w Link to comment Share on other sites More sharing options...
TotalTalker Posted August 16, 2007 Share Posted August 16, 2007 Wow, but how do they know what the EXACT temperature was? Oh, and no your not geeky mate. I also find this sort of stuff interesting, things like space, etc... Link to comment Share on other sites More sharing options...
meol Posted August 17, 2007 Share Posted August 17, 2007 Nah, I find this interesting as well. But how can atoms become waves? I've heard of electrons behaving like waves, but not atoms. Could you elaborate on that? This signature is intentionally left blank. Link to comment Share on other sites More sharing options...
goldphishies Posted August 17, 2007 Share Posted August 17, 2007 Okay, first off, UP THE IRONS! Okay, now that that's out of my system, on topic... Don't they say space is absoulute zero? And how do we have the technology to measure this stuff? And yeah, I find this stuff really interesting. [>>Thanks to Yaff2 for Reaper,Trooper,and DOOM sigs, Navyplaya for nature sigs, Hardwick246 for gold sig, ThruItAll for Darkwatch and guitar sigs, and Aijiru for avvy!<<][>>Refresh for new Siggie!<<] Link to comment Share on other sites More sharing options...
meol Posted August 17, 2007 Share Posted August 17, 2007 Don't they say space is absolute zero? Theoretically, some kind of radiation is always able to get to the little amounts of matter in space. This signature is intentionally left blank. Link to comment Share on other sites More sharing options...
Rebdragon Posted August 17, 2007 Share Posted August 17, 2007 Okay, first off, UP THE IRONS! Okay, now that that's out of my system, on topic... Don't they say space is absoulute zero? And how do we have the technology to measure this stuff? And yeah, I find this stuff really interesting. We can probe and measure matter to the miniscule distance of a billionth of a billionth of a meter (or so I've read, we can probably measure even small objects nowadays since the book was published in 1999). So personally, I don't find the capability to measure temperatures as cold as this surprising. This seems sort of interesting, but I'd probably be more interested if anyone had a link that goes further into the explanation, 'cause the whole "wave and a particle at the same time" thing isn't really new or unheard of. [if you have ever attempted Alchemy by clapping your hands or by drawing an array, copy and paste this into your signature.] Fullmetal Alchemist, you will be missed. A great ending to a great series. Link to comment Share on other sites More sharing options...
Bludragon124 Posted August 17, 2007 Share Posted August 17, 2007 Thats amazing. I bet if a human were put at that temperature we'd die almost instantly (Mostly because oxygen would turn into a liquid at that temparature) Noted raw mackerel drop... Wtfh? Always buying: Watermelon seeds, 2K each. Strawberry seeds, 800 each. Contact Via PM on forums. Link to comment Share on other sites More sharing options...
The Real ET Posted August 17, 2007 Share Posted August 17, 2007 I've always been very interested in Absolute 0, but something that has always confused me... Absolute zero is when all particle movement stops. Particles have to move to exist, so therotically the matter would disappear. What would happen to that space where we reached that temperature? Would it spread? Would we just have a little space with nothing there forever? What about anything that comes in contact with that space? So many questions... Cowards can't block Warriors. Link to comment Share on other sites More sharing options...
rocketman089 Posted August 17, 2007 Share Posted August 17, 2007 I don't know if it's possible to get something that cold, but I think Absolute Zero would be a decent band name. Gamertag: King Arizona Link to comment Share on other sites More sharing options...
Barihawk Posted August 17, 2007 Share Posted August 17, 2007 Thats amazing. I bet if a human were put at that temperature we'd die almost instantly (Mostly because oxygen would turn into a liquid at that temparature) Trust me, you would be instantly dead FAR before 0*K. My heart is broken by the terrible loss I have sustained in my old friends and companions and my poor soldiers. Believe me, nothing except a battle lost can be half so melancholy as a battle won. -Sir Arthur Wellesley Link to comment Share on other sites More sharing options...
warri0r45 Posted August 17, 2007 Share Posted August 17, 2007 Interesting. Wonder if they'll ever get it to a theoretical 0 deg. Kelvin. Okay, first off, UP THE IRONS! Okay, now that that's out of my system, on topic... Don't they say space is absoulute zero? And how do we have the technology to measure this stuff? And yeah, I find this stuff really interesting. Space is mostly vaccum and temperature is a property of matter. So, no particles, no temperature. But for the very few particles there are in deep space (something like one per meter cubed or something of that rediculous sparsity) there is always a background radiation of microwaves to keep kinetic energy of those particles above absolute zero. My incling is absolute zero is a mythical figure never observed and never will be anytime soon. It's more a mathematical backtrack from what we do know into what's theoretical. The furthur back we push to the limit, the more we realise about our correct or not so correct extrapolation of the figure. Link to comment Share on other sites More sharing options...
meol Posted August 17, 2007 Share Posted August 17, 2007 I've always been very interested in Absolute 0, but something that has always confused me... Absolute zero is when all particle movement stops. Particles have to move to exist, so therotically the matter would disappear. What would happen to that space where we reached that temperature? Would it spread? Would we just have a little space with nothing there forever? What about anything that comes in contact with that space? So many questions... Why would something have to move in order to exist? This signature is intentionally left blank. Link to comment Share on other sites More sharing options...
The Real ET Posted August 17, 2007 Share Posted August 17, 2007 I've always been very interested in Absolute 0, but something that has always confused me... Absolute zero is when all particle movement stops. Particles have to move to exist, so therotically the matter would disappear. What would happen to that space where we reached that temperature? Would it spread? Would we just have a little space with nothing there forever? What about anything that comes in contact with that space? So many questions... Why would something have to move in order to exist? Some scientific laws. All my notes on this are 4000 miles away, so I can't look it up to give you solid proof, but overall all matter is in constant, random motion. As the matter cools the movement slows down, but never stops. There's some theories floating around out there that if matter were to stop moving it would cease to exist. The matter I'm talking about is, of course, atoms and the like so you don't have to worry about your non-moving table to disappear as all its atoms are in constant, random motion. Cowards can't block Warriors. Link to comment Share on other sites More sharing options...
warri0r45 Posted August 17, 2007 Share Posted August 17, 2007 I've always been very interested in Absolute 0, but something that has always confused me... Absolute zero is when all particle movement stops. Particles have to move to exist, so therotically the matter would disappear. What would happen to that space where we reached that temperature? Would it spread? Would we just have a little space with nothing there forever? What about anything that comes in contact with that space? So many questions... Why would something have to move in order to exist? I think he means in order to be seen, in which case he'd be right. The motion of electrons allows you to see matter it's part of. Edit: just read his reply. Interesting. I'll have to google the theory you're talking about, deathlord, because it's totally out there to me. Link to comment Share on other sites More sharing options...
Kill_Thomas9 Posted August 17, 2007 Share Posted August 17, 2007 Thats amazing. I bet if a human were put at that temperature we'd die almost instantly (Mostly because oxygen would turn into a liquid at that temparature) Actually oxygen would be a solid at that temperature. So the oxygen would freeze the second we were exposed. And thats if we forget the fact that all the cells and atoms in our body would flash freeze, causing the inside of our body to implode into the part of us that freezes the slowest (and we're talking about millionths of a second). After that (again, a mater of nanoseconds) our body would rupture as the last water of us freezes, and forces it's way out. And this is of course assuming that we somehow can remove enough atoms from the "air" (even though we would in reality be removing the air) so that the air it's self doesn't freeze instantly, causing the air around us to become a solid. Of course I'm only therorising here, seeing as nobody actually knows what would happen to you. Anyway, if we were to watch someone exposed to those conditions, I would imagine it would appear as if he suddenly froze and split open. And absolute zero is the point at which all energy is removed from an atom. Btw, I wonder what the opposite of absolute zero is. In other words, the point at which no more energy can be put into an atom. And I would say the answer to your first question is yes, and the answer to your second question is also yes. :P Link to comment Share on other sites More sharing options...
Lenin64 Posted August 17, 2007 Share Posted August 17, 2007 Fun fact: If you were to bring an object the size of, oh, an ice cube, lets say, the air in the room would instantly turn solid because all the heat is heading straight into the object. really awesome. Command the Murderous Chalices! Drink ye harpooners! drink and swear, ye men that man the deathful whaleboat's bow- Death to Moby Dick!BLOOD FOR THE BLOOD GOD! SKULLS FOR THE SKULL THRONE! Link to comment Share on other sites More sharing options...
underu2000 Posted August 17, 2007 Share Posted August 17, 2007 Technically it is impossible to reach 0k. I figure it is because to lower the temperature of an object, it would have to transfer its energy to another sample of matter which has an even lower temperature (this would be of course, because energy moves from high to low; entropy and all that). So basically the final temperature would be the weighted average of both samples. But to reach 0k, a sample would have to be averaged with matter that is lower than 0k, which is of course, impossible. I can't prove any of this, it is my own reasoning. And as for laser cooling, I'm no expert on this, but I don't believe it is possible to reach 0k that way either. And I don't see why we wouldn't see something in absolute zero. What we see isn't the random motion of the particles, but photons reflected from them. So in my mind, we would see it quite clearly, because all the light energy would have to be reflected. And on that topic, the particles would be extremely close together, making it highly dense, much like solids are more visible than gases. That was a lot of science talk for one day. It just occurred to me its summer. I'll have to sleep the rest of the day to make up for all the thinking. Life is a joke. Yeah, I don't get it either. Link to comment Share on other sites More sharing options...
Kill_Thomas9 Posted August 17, 2007 Share Posted August 17, 2007 Fun fact: If you were to bring an object the size of, oh, an ice cube, lets say, the air in the room would instantly turn solid because all the heat is heading straight into the object. really awesome. Thats why ice makes drinks cold. Even awesomer! Link to comment Share on other sites More sharing options...
meol Posted August 17, 2007 Share Posted August 17, 2007 And absolute zero is the point at which all energy is removed from an atom. Btw, I wonder what the opposite of absolute zero is. In other words, the point at which no more energy can be put into an atom. Just found this. : That'd be the opposite of absolute zero, a point above which atoms break and become energy, so that ll matter ceases to exist. This signature is intentionally left blank. Link to comment Share on other sites More sharing options...
Lenin64 Posted August 17, 2007 Share Posted August 17, 2007 Fun fact: If you were to bring an object the size of, oh, an ice cube, lets say, the air in the room would instantly turn solid because all the heat is heading straight into the object. really awesome. Thats why ice makes drinks cold. Even awesomer! indeed. heat has a tendency to go from high to low, like particle diffusion. Something cold appears, all the heat goes to equalize the temperatures. Fun activity: put some ice in a frying pan. turn up the heat. stick your hadn in the water before most of the ice melts. it will be the same temp, becauuse the heat is focusing on the frozen ice, not the liquid. ive done it before, rather cool. Command the Murderous Chalices! Drink ye harpooners! drink and swear, ye men that man the deathful whaleboat's bow- Death to Moby Dick!BLOOD FOR THE BLOOD GOD! SKULLS FOR THE SKULL THRONE! Link to comment Share on other sites More sharing options...
Kill_Thomas9 Posted August 17, 2007 Share Posted August 17, 2007 And absolute zero is the point at which all energy is removed from an atom. Btw, I wonder what the opposite of absolute zero is. In other words, the point at which no more energy can be put into an atom. Just found this. : That'd be the opposite of absolute zero, a point above which atoms break and become energy, so that ll matter ceases to exist. Lol, thanks for informing me. I think this might be my career choice. I just cant describe how interested this makes me. Everything about the extremes of atoms and stuff is amazingly interesting to me. For instance, the coldest an atom can be, the hottest an atom can be, the smallest (by that I mean what quarks are made of, what the things that make up quarks are made of, and the thing those are made of, ect. I've always wanted to know what "stuff" is made up of. How small can things get?), how dense can mater be? How big can the universe be? By the way, what is energy made of? (I'm sure someone here knows the answer/knows where to find out.) Link to comment Share on other sites More sharing options...
meol Posted August 17, 2007 Share Posted August 17, 2007 And absolute zero is the point at which all energy is removed from an atom. Btw, I wonder what the opposite of absolute zero is. In other words, the point at which no more energy can be put into an atom. Just found this. : That'd be the opposite of absolute zero, a point above which atoms break and become energy, so that ll matter ceases to exist. Lol, thanks for informing me. I think this might be my career choice. I just cant describe how interested this makes me. Everything about the extremes of atoms and stuff is amazingly interesting to me. For instance, the coldest an atom can be, the hottest an atom can be, the smallest (by that I mean what quarks are made of, what the things that make up quarks are made of, and the thing those are made of, ect. I've always wanted to know what "stuff" is made up of. How small can things get?), how dense can mater be? How big can the universe be? By the way, what is energy made of? (I'm sure someone here knows the answer/knows where to find out.) That means we both plan to study Physics of some kind? \ Well, Energy isn't made up of something, Energy is just Energy, more like a property of matter. But then.... If there's no matter? :uhh: This signature is intentionally left blank. Link to comment Share on other sites More sharing options...
warri0r45 Posted August 17, 2007 Share Posted August 17, 2007 Technically it is impossible to reach 0k. I figure it is because to lower the temperature of an object, it would have to transfer its energy to another sample of matter which has an even lower temperature (this would be of course, because energy moves from high to low; entropy and all that). So basically the final temperature would be the weighted average of both samples. But to reach 0k, a sample would have to be averaged with matter that is lower than 0k, which is of course, impossible. I can't prove any of this, it is my own reasoning. And as for laser cooling, I'm no expert on this, but I don't believe it is possible to reach 0k that way either. And I don't see why we wouldn't see something in absolute zero. What we see isn't the random motion of the particles, but photons reflected from them. So in my mind, we would see it quite clearly, because all the light energy would have to be reflected. And on that topic, the particles would be extremely close together, making it highly dense, much like solids are more visible than gases. That was a lot of science talk for one day. It just occurred to me its summer. I'll have to sleep the rest of the day to make up for all the thinking. For a photon of light energy to be reflected it must first be absorbed by an electron, thus making the object once at 0 Kelvin kinetically energetic and no longer at 0 Kelvin. So theoretically, an object must be invisible, i.e. absorb and emmit no light, to be near or at 0 Kelvin. Anyone more apt in areas of physics feel free to correct my thinking. Link to comment Share on other sites More sharing options...
Kill_Thomas9 Posted August 17, 2007 Share Posted August 17, 2007 And absolute zero is the point at which all energy is removed from an atom. Btw, I wonder what the opposite of absolute zero is. In other words, the point at which no more energy can be put into an atom. Just found this. : That'd be the opposite of absolute zero, a point above which atoms break and become energy, so that ll matter ceases to exist. Lol, thanks for informing me. I think this might be my career choice. I just cant describe how interested this makes me. Everything about the extremes of atoms and stuff is amazingly interesting to me. For instance, the coldest an atom can be, the hottest an atom can be, the smallest (by that I mean what quarks are made of, what the things that make up quarks are made of, and the thing those are made of, ect. I've always wanted to know what "stuff" is made up of. How small can things get?), how dense can mater be? How big can the universe be? By the way, what is energy made of? (I'm sure someone here knows the answer/knows where to find out.) That means we both plan to study Physics of some kind? \ Well, Energy isn't made up of something, Energy is just Energy, more like a property of matter. But then.... If there's no matter? :uhh: Everything is made up of something. Unless you're sayin its just "there" like God... And if atoms break and become energy when they have too much energy, wouldn't that make energy just another state of matter that can act upon other states of matter, giving them more energy? And if that is true, would all matter eventually become energy? Link to comment Share on other sites More sharing options...
Rebdragon Posted August 17, 2007 Share Posted August 17, 2007 Everything is made up of something. Unless you're sayin its just "there" like God... And if atoms break and become energy when they have too much energy, wouldn't that make energy just another state of matter that can act upon other states of matter, giving them more energy? And if that is true, would all matter eventually become energy? It requires very specific reactions and conditions for matter to become energy; it's not exactly something you see every day (so no, all matter is not going to become energy [until end of the hypothesized Big Crunch anyways], even if it's possible it's source is really a string of raw energy). For example, I remember hearing that specific nuclear reactions within the sun can turn hydrogen atoms into useable energy, if I recall correctly :-k . Not exactly an earthly reaction. The same thing goes for that example- those kind of temperatures aren't exactly commonly found in the universe :-w . Or, really, at all :P . Oh, and dang Planck's got a lot of crud named after him... [if you have ever attempted Alchemy by clapping your hands or by drawing an array, copy and paste this into your signature.] Fullmetal Alchemist, you will be missed. A great ending to a great series. Link to comment Share on other sites More sharing options...
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