aman Posted October 19, 2002 Share Posted October 19, 2002 In intergalactic space, is there a temperature? Where would it come from? Just curious. Just aman Link to comment Share on other sites More sharing options...
fafalone Posted October 19, 2002 Share Posted October 19, 2002 Cosmic background radiation. Link to comment Share on other sites More sharing options...
aman Posted October 19, 2002 Author Share Posted October 19, 2002 Is there any natural space in the universe at 0 deg. Kelvin? Just aman Link to comment Share on other sites More sharing options...
blike Posted October 20, 2002 Share Posted October 20, 2002 Probably not, that would mean NO energy right? Link to comment Share on other sites More sharing options...
aman Posted October 20, 2002 Author Share Posted October 20, 2002 Since indications by experiment are that matter at 0 Degrees K or no energy will collapse on itself into a singularity and Black holes with incredible energy can meet the same definition, then are they close to the same thing but from different directions? Maybe mini-black holes are just really cold. Just aman Link to comment Share on other sites More sharing options...
aman Posted October 30, 2002 Author Share Posted October 30, 2002 Would an empty universe have a temperature? Wouldn't it need some energy to maintian its dimensions? I think it would have to be just above 0 kelvin. Just aman Link to comment Share on other sites More sharing options...
blike Posted October 30, 2002 Share Posted October 30, 2002 Would an empty universe have a temperature? Wouldn't it need some energy to maintian its dimensions? Great question, I'll see if I can look it up. Wouldn't be able to say off the top of my head. Link to comment Share on other sites More sharing options...
Ragnarak Posted October 30, 2002 Share Posted October 30, 2002 Deep space has a temperature of 2.7k i believe, which is, as stated above, due to the cosmic background radiation Link to comment Share on other sites More sharing options...
fafalone Posted October 30, 2002 Share Posted October 30, 2002 Isn't "heat" a measure of molecular movement? Or is that "temperature"? Link to comment Share on other sites More sharing options...
Ragnarak Posted October 30, 2002 Share Posted October 30, 2002 both? temp is measure of average KE of particles heat is a type of energy related to motion of particles Link to comment Share on other sites More sharing options...
fafalone Posted October 30, 2002 Share Posted October 30, 2002 Cosmic background radiation obviously exists, but exists where there are no particles, so how could both only apply to particles? Link to comment Share on other sites More sharing options...
Ragnarak Posted October 30, 2002 Share Posted October 30, 2002 Originally posted by fafalone Cosmic background radiation obviously exists, but exists where there are no particles, so how could both only apply to particles? Heat is a form of energy It can be transmitted through space Waves transfer energy from one point to another I think we may be getting into the territory of wave/particle duality thinking. Link to comment Share on other sites More sharing options...
Ragnarak Posted October 30, 2002 Share Posted October 30, 2002 oops forgot to add cosmic background radiation is microwave radiation Link to comment Share on other sites More sharing options...
fafalone Posted October 30, 2002 Share Posted October 30, 2002 Originally posted by Ragnarak Heat is a form of energy It can be transmitted through space Waves transfer energy from one point to another I think we may be getting into the territory of wave/particle duality thinking. That's what I was asking. The difference between heat and temperature. Link to comment Share on other sites More sharing options...
Ragnarak Posted October 30, 2002 Share Posted October 30, 2002 Originally posted by fafalone That's what I was asking. The difference between heat and temperature. heat is the transfer of energy due to a change in temperature ie. convection, radiation, etc I think that's the simplest way to look at it. ps. why can't we delete posts? i accidently quoted this one instead of editing it Link to comment Share on other sites More sharing options...
Ragnarak Posted October 30, 2002 Share Posted October 30, 2002 Originally posted by Ragnarak ooops Link to comment Share on other sites More sharing options...
aman Posted October 30, 2002 Author Share Posted October 30, 2002 I thought the background radiation came from a hydrogen ion cloud expanding at the edge of our universe. The ions still have the heat of existance and a temperature that keeps them from collapsing into singularities. Is the other side a cold singularity or does it have energy to maintain the 4 dimensions? Just aman Link to comment Share on other sites More sharing options...
Ozman Posted January 24, 2003 Share Posted January 24, 2003 If you subscribe to the most popular intrepretation of quantum physics, the number of dimensions and the number of universes is infinite. I say, IF you subscribe..... Link to comment Share on other sites More sharing options...
fafalone Posted January 24, 2003 Share Posted January 24, 2003 I subscribe to the quantum physics that leads you to finding that there are 26 dimensions. Link to comment Share on other sites More sharing options...
JaKiri Posted January 24, 2003 Share Posted January 24, 2003 Originally posted by fafalone I subscribe to the quantum physics that leads you to finding that there are 26 dimensions. I thought it was 10 nowadays? Assuming we're talking about M-theory here. And don't forget Zero Point Energy, y'all. Link to comment Share on other sites More sharing options...
fafalone Posted January 24, 2003 Share Posted January 24, 2003 It depends on how you look at it; as the theory goes it may be possible to simplify, but we're definately not certain yet. Link to comment Share on other sites More sharing options...
§lîñk€¥™ Posted January 24, 2003 Share Posted January 24, 2003 Originally posted by fafalone Cosmic background radiation obviously exists, but exists where there are no particles, so how could both only apply to particles? I was under the impression that the microwave background is made of particles. These being the photons that mark the time when the Universe became "transparent" to radiation (apprx. t=300,000 years. if my memory serves). kind regards Link to comment Share on other sites More sharing options...
§lîñk€¥™ Posted January 24, 2003 Share Posted January 24, 2003 Originally posted by Ragnarak ps. why can't we delete posts? i accidently quoted this one instead of editing it Its is a pain when you click quote instead of edit. Just use "back page" on your browser. kind regards Link to comment Share on other sites More sharing options...
KHinfcube22 Posted April 26, 2003 Share Posted April 26, 2003 wouldn't shooting air into space cause liquid nitrogen and liquid oxegen be formed? Link to comment Share on other sites More sharing options...
fafalone Posted April 26, 2003 Share Posted April 26, 2003 No, it would cause gaseous nitrogen and oxygen to form since the molecules will spread out as far as possible. Link to comment Share on other sites More sharing options...
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