|
|
Post by trbixler on Aug 8, 2011 2:23:20 GMT
Since there has never been a sighting of any object at absolute zero, what does your post have to do with anything real? Awww......but it does have everything to do with everything real Richard. If you don't understand how radiative energy works, all you have to do is understand that with a lack of energy, the temp of an object would be absolute zero. The reason it hasn't been observed is because the sun sends us energy. When the sun and stars stop emitting energy, the result will be absolute zero. So.....in effect, radiative energy provides a slowdown to the required absolute zero that would happen with no energy provided. A simple explanation. For some it is hard to get past convection, which is a different way to transfer heat, but yet very much the same. sig You are jumping ahead on Alice's story. Others here thought I was tripping on the spherical topological calculation concept I was not! Now this revelation that heat can be transported by convection, really will physical reality never cease. |
|
|
|
Post by thermostat on Aug 8, 2011 2:23:30 GMT
BRAVO! Nice rant. can you provide a shred of evidence on this point? Trenberth's budget Richard. Or do you think there is a question about clouds reflecting IR? Nope, he can't; nice rant on his part though; it's called a misdirect. |
|
|
|
Post by richard on Aug 8, 2011 2:24:41 GMT
Since there has never been a sighting of any object at absolute zero, what does your post have to do with anything real? Awww......but it does have everything to do with everything real Richard. If you don't understand how radiative energy works, all you have to do is understand that with a lack of energy, the temp of an object would be absolute zero. The reason it hasn't been observed is because the sun sends us energy. When the sun and stars stop emitting energy, the result will be absolute zero. So.....in effect, radiative energy provides a slowdown to the required absolute zero that would happen with no energy provided. A simple explanation. For some it is hard to get past convection, which is a different way to transfer heat, but yet very much the same. That's a stretch. The universe would have to expand to infinity in order to get to absolute zero. |
|
|
|
Post by magellan on Aug 8, 2011 2:26:03 GMT
So now steve, our resident physicist and modeler, says convection doesn't transfer heat and radiation only transfers heat?
ROTFLMAO!!
W00t That's a good one steve. Where did you get your degree? And you are teaching students this stuff? Sorry, but since you've been telling icefisher over and over he doesn't understand "basic physics", this latest is over the top.
I haven't taken a physics class in 30+ years, so have an excuse, but even as Dr. Thermostat says I don't understand anything about physics, perhaps he could straighten this all out since he has a PhD and all.
|
|
|
|
Post by thermostat on Aug 8, 2011 2:36:06 GMT
So now steve, our resident physicist and modeler, says convection doesn't transfer heat and radiation only transfers heat? ROTFLMAO!! W00t That's a good one steve. Where did you get your degree? And you are teaching students this stuff? Sorry, but since you've been telling icefisher over and over he doesn't understand "basic physics", this latest is over the top. I haven't taken a physics class in 30+ years, so have an excuse, but even as Dr. Thermostat says I don't understand anything about physics, perhaps he could straighten this all out. misdirect. yet again |
|
|
|
Post by magellan on Aug 8, 2011 2:38:07 GMT
So now steve, our resident physicist and modeler, says convection doesn't transfer heat and radiation only transfers heat? ROTFLMAO!! W00t That's a good one steve. Where did you get your degree? And you are teaching students this stuff? Sorry, but since you've been telling icefisher over and over he doesn't understand "basic physics", this latest is over the top. I haven't taken a physics class in 30+ years, so have an excuse, but even as Dr. Thermostat says I don't understand anything about physics, perhaps he could straighten this all out. misdirect. yet again Is steve right thermostat? What is your PhD in again? |
|
|
|
Post by thermostat on Aug 8, 2011 2:50:23 GMT
Is steve right thermostat? What is your PhD in again? My PhD is in science. Tell me again Magellan, what do you know? |
|
|
|
Post by sigurdur on Aug 8, 2011 3:06:12 GMT
Is steve right thermostat? What is your PhD in again? My PhD is in science. Tell me again Magellan, what do you know? Thermostat: You will have to be more deffinitive as to what your Phd is in. Science encompasses Physcology......astronomy.....to name just a few. |
|
|
|
Post by sigurdur on Aug 8, 2011 3:06:59 GMT
And are you sure that it is a Phd....or not just a B.S. degree?
|
|
|
|
Post by sigurdur on Aug 8, 2011 3:08:51 GMT
Awww......but it does have everything to do with everything real Richard. If you don't understand how radiative energy works, all you have to do is understand that with a lack of energy, the temp of an object would be absolute zero. The reason it hasn't been observed is because the sun sends us energy. When the sun and stars stop emitting energy, the result will be absolute zero. So.....in effect, radiative energy provides a slowdown to the required absolute zero that would happen with no energy provided. A simple explanation. For some it is hard to get past convection, which is a different way to transfer heat, but yet very much the same. That's a stretch. The universe would have to expand to infinity in order to get to absolute zero. Richard: You are correct. If you can help in showing how radiative energy is transferred, that would be most helpful. I was trying to do it in the simpliest possible steps. Throttleup has Alice helping as well. She is a smart lady with a PHD in Thermodynamics. |
|
|
|
Post by sigurdur on Aug 8, 2011 3:09:47 GMT
Escuse me!.........it is TRBIXLER.....that tea drinking junkie!
|
|
|
|
Post by magellan on Aug 8, 2011 3:14:33 GMT
Is steve right thermostat? What is your PhD in again? My PhD is in science. Tell me again Magellan, what do you know? Convective heat transfer is grade school physics. If I'm wrong in lambasting steve, surely you, with a PhD in "Science" can set me straight and put this to a halt here and now. I'm not too proud to be wrong. I think you fibbing again Dr. Thermostat. |
|
|
|
Post by trbixler on Aug 8, 2011 3:38:30 GMT
Escuse me!.........it is TRBIXLER.....that tea drinking junkie! sig You got me laughing on that one. But Alice is waiting for for the next installment. Somehow I think we have covered how convection and radiation basically work. Unfortunately after the basics the details get, well very detailed. I think it is why everyone myself included bails on the details. What I am unwilling to do is suggest that the details do not exist. Some of the details involve fluid dynamics layered upon the heat transfer calculations. Throw that in with the various gas partial pressures that are not evenly distributed globally... well you get the point. What I object to is the trivialization of the science. Part of the trivialization is the 'greenhouse' without glass in the face of convection. I am sure you have witnessed a tornado or a thunder head cloud formation. The energy presented is dramatic, but think of the heat transfer calculations. As an aside someone mentioned documentation. All of the work at my company is Version Controlled. All code is commented and released including archiving each release dataset. Currently I have been working on Visa PADSS certification. Even my field techs S&Is have been photographed and reviewed looking for credit card security breaches. But hey I ran a section at the bank that did 8 to 9 billion a day. Of course that was 30 some odd years ago when a billion was a billion and represented a little more reality than today. Everything I do today is real time for mostly private customers but still involves financials. Yes it runs my own OS in rom as other approaches are not too reliable in my estimation (MS and Linux). |
|
|
|
Post by richard on Aug 8, 2011 3:42:16 GMT
That's a stretch. The universe would have to expand to infinity in order to get to absolute zero. Richard: You are correct. If you can help in showing how radiative energy is transferred, that would be most helpful. I was trying to do it in the simpliest possible steps. All matter emits photons which carry the energy away. They bang into other atoms and those atoms heat up. Alternatively the radiation can be visualized as waves, but the same basic process applies. Icefisher's hypothesis that radiation somehow knows the temperature of the destination, which could be many light years away, and refuses to start the journey unless the destination is at a lower temperature than the source, is just plain daft. |
|
|
|
Post by magellan on Aug 8, 2011 3:49:36 GMT
Richard: You are correct. If you can help in showing how radiative energy is transferred, that would be most helpful. I was trying to do it in the simpliest possible steps. All matter emits photons which carry the energy away. They bang into other atoms and those atoms heat up. Alternatively the radiation can be visualized as waves, but the same basic process applies. Icefisher's hypothesis that radiation somehow knows the temperature of the destination, which could be many light years away, and refuses to start the journey unless the destination is at a lower temperature than the source, is just plain daft. Richard, Does convection transfer heat? A simple yes or no will do. |
|
