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Post by sigurdur on Aug 7, 2011 1:38:06 GMT
And even in the microwave, color does make a difference as to the absorbtion of the magnetic activity.
Hence, the albedo effect of clouds....cloud height and color make a huge difference in this.
And this is all radiation based.
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Post by richard on Aug 7, 2011 2:55:10 GMT
Of course you're so wrong as to be below high school level. Photons don't know in advance the temperature of their destination. They travel from their source, which could be cold, to their destination, which could be warm, in a straight line (barring the minor relativistic curving). So tell me how a photon, or if you don't like that word, a quantum of radiative energy, know the temperatures of the source and the destination ahead of time?Richard you obviously do not understand the difference between theory and fact. How does it know? I don't know but it is Electro MAGNETIC radiation! A better question would be since I have not concluded on the matter is how you did conclude that there is no attraction? Please explain your last sentence. "conclude that there is no attraction" of what to what? We're talking about whether radiation flows in two directions or only one. Your point about theory vs fact is silly at best. EVERYONE here already knows that theory describes fact to the best of our knowledge, and that in science there are NO facts. We simply can't prove that the sun exists. Now, we know to about a zillion decimal places that the sun exists, so to bring up the difference between theory and "fact" is, well, pointless at best. Now, it is accepted theory/fact that radiation flows in both directions, both from the colder to the hotter and from the hotter to the colder. The simple hand test over water/dry ice shows that. Ever sit in a room in the winter? Move near a window and you'll cool off. Your alternative to established theory/fact is bottom of the barrel junk. |
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Post by icefisher on Aug 7, 2011 3:26:23 GMT
icefisher:
You have to remove convection as a process from your thoughts. Convection is movement of heat, while radiation is transfer of heat...or slowing down the cooling off per se.
First off where was I talking about convection?
Second I fail to see what you are getting at.
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Post by trbixler on Aug 7, 2011 5:13:44 GMT
I get it, there is no molecular energy transfer only radiative. Interesting model with everything sitting at absolute zero. I then asked Alice what she thought of this perception and as there was no energy to transfer I heard nothing and felt nothing.
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Post by richard on Aug 7, 2011 7:23:40 GMT
I get it, there is no molecular energy transfer only radiative. Interesting model with everything sitting at absolute zero. I then asked Alice what she thought of this perception and as there was no energy to transfer I heard nothing and felt nothing. That is essentially true when talking about how energy enters and leaves the planetary system. |
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Post by steve on Aug 7, 2011 11:19:36 GMT
icefisher,
With all respect to your undoubted skills as a financial auditor, the above is just nonsense. That's why I've given up. It's like me telling you that companies just need to invest in a good quality dollar bill printer, and their guaranteed to make profits.
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Post by trbixler on Aug 7, 2011 13:38:19 GMT
I get it, there is no molecular energy transfer only radiative. Interesting model with everything sitting at absolute zero. I then asked Alice what she thought of this perception and as there was no energy to transfer I heard nothing and felt nothing. That is essentially true when talking about how energy enters and leaves the planetary system. Ah yes but how does it get there for it final radiant exodus? As a help a body sitting at absolute zero will not radiate anything as mute Alice has reported. |
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Post by icefisher on Aug 7, 2011 14:23:08 GMT
Your point about theory vs fact is silly at best. EVERYONE here already knows that theory describes fact to the best of our knowledge, and that in science there are NO facts. We simply can't prove that the sun exists. Now, we know to about a zillion decimal places that the sun exists, so to bring up the difference between theory and "fact" is, well, pointless at best.
Hmmmm, its been my experience that somebody smart enough to spell can't possibly be that stupid. So that marks you as a troll.
And my experience has also taught me it is wise to not feed the trolls. Goodbye!
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Post by trbixler on Aug 7, 2011 18:14:29 GMT
Ah Alice confided to me a secret "temperature is a measure of the kinetic energy of molecules". The secrets she bears. I think I will now have a cup of tea.
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Post by sigurdur on Aug 7, 2011 19:17:31 GMT
trbixler:
Oh wise Alice has her facts correct so far. The measure of temperature is the kinetic energy expressed above absolute zero. A fine measurement it is.
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Post by trbixler on Aug 8, 2011 0:18:46 GMT
So Alice whispered in confidence that sometimes people at the party bumped into one another sometimes giving up energy while others received energy. Kind of a kinetic dance of molecules so to speak. While others gave up their energy to who knows where. That energy was either received or not by other dancers. When not received it went off into the great unknown. She also whispered something to me about density as if it made a difference as to if the energy was likely to be kinetically exchanged, radiatively exchanged or just going to who knows where (chaos reigns). So she says to me it all depends as to who you are and where you are. Of course she was concerned as to how you got there.
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Post by richard on Aug 8, 2011 1:26:38 GMT
That is essentially true when talking about how energy enters and leaves the planetary system. Ah yes but how does it get there for it final radiant exodus? As a help a body sitting at absolute zero will not radiate anything as mute Alice has reported. Since there has never been a sighting of any object at absolute zero, what does your post have to do with anything real? |
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Post by richard on Aug 8, 2011 1:27:54 GMT
Your point about theory vs fact is silly at best. EVERYONE here already knows that theory describes fact to the best of our knowledge, and that in science there are NO facts. We simply can't prove that the sun exists. Now, we know to about a zillion decimal places that the sun exists, so to bring up the difference between theory and "fact" is, well, pointless at best. Hmmmm, its been my experience that somebody smart enough to spell can't possibly be that stupid. So that marks you as a troll. And my experience has also taught me it is wise to not feed the trolls. Goodbye! Yep. You have nothing to say since you probably looked up the definition of theory and found out that I am 100% correct, so you resorted to lowly insults. |
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Post by trbixler on Aug 8, 2011 2:15:14 GMT
Ah yes but how does it get there for it final radiant exodus? As a help a body sitting at absolute zero will not radiate anything as mute Alice has reported. Since there has never been a sighting of any object at absolute zero, what does your post have to do with anything real? Alice being remotely concerned with her guests noted that transportation to that final exodus needed review. For indeed there would be no radiation if there was not some excitement. Why looking at the great maw of space sitting as close to a real black body that could be found provided an ideal platform for that exodus. But the party raged on below. Where were the tea cups and were they hot or cold and were they flying about. Could it be that they were being held hostage by some unknown force. Even as they received energy from others they lost contact with them as they floated skyward. The echos of an earlier post rattled on Alice's mind as she deftly recalled P1V1 = P2V2. And ever so quickly their density changed and they were transported. Oh would the guests achieve the final exodus into that vast emptiness and fall spent free falling back into wren from whence they came? Of course Alice could hardly give introductions as many guests seemed to be on different wave lengths. How could all this dynamic madness persist. It seemed so surreal to Alice. Guests kept arriving and departing some shining brightly only to bump into some new guest and then leave abruptly. Of course even Alice could not see the state of every person at the party. But she did know that they came and left sometimes much as they arrived and other times quite changed. This is Alice's view of the real world. |
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Post by sigurdur on Aug 8, 2011 2:16:38 GMT
Ah yes but how does it get there for it final radiant exodus? As a help a body sitting at absolute zero will not radiate anything as mute Alice has reported. 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. |
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