why do you keep bringing up examples that obscure basic principles? when we are discussing radiation you put up examples of convection and conduction. when we are talking about blackbodies you bring up examples of non-blackbody emission. what is with you? are you purposely being dishonest or is your attention span so short that you cannot stay on topic? it pisses me off that you just want to lay down red herrings all the time.
After ~ a week that`s the best you can do?
Get pissed off ?
Instead of getting "pissed off" you should have given it some rational thought instead of basing your "conclusion" on your emotions.
I keep telling you that the "heat" energy equivalent of a photon is not heat unless it encounters a system that converts it into heat.
How many times do you have to be told that the only system that is able to do that is AN IDEAL BLACK BODY.
Name 1 square inch of the earth`s surface that qualifies as such and while you are at it point out a location where convection and conduction can be ruled out.
What`s the matter with you..what`s so "obscure" with that basic principle:
When you heat matter, the higher the temperature, the higher the kinetic energy and if more "black body photons" are permitted to carry away energy from the system, while you are heating it, the lower the temperature that can be achieved with a given amount of energy.elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies after the encounter is equal to their total kinetic energy before the encounter. Elastic collisions occur only if there is no net conversion of kinetic energy into other forms. Averaged across the entire sample, molecular collisions can be regarded as essentially elastic as long as black-body photonsare not permitted to carry away energy from the system.
Was that sentence too long for your attention span ?
Take some Prozac and try read it without "getting pissed off" because you get confused if there are more than 3 words in a sentence.
If it finally dawned on you then there is no need to further explain, that the same applies if conduction and convection occurs at the same time.
That`s not a "red herring". It's a "red herring" flaunting an ideal black body radiation profile copied& pasted from Wkipedia, like you keep doing it, insisting that
the energy within this envelope is converted from radiation into heat as in increasing the temperature of an absorbing gas which in the real world is removing most of the "black body" heat via conduction and convection, not giving a rat`s ass how many
ppm CO2 that gas contains.
I gave you a whole bunch of examples and by now even a fifth grader would have understood these " obscured basic principles"
that a heated object heats up air (or you hand if you get near it) almost at the same rate (in watts) as you feed heat to the object
with a heater as opposed to radiation even if you feed more watts as radiation into the system as you do by directly heating it.
The only time radiation heats an object at the same rate is with a purely theoretical black body while no work is performed.
Show me 1 square inch of planet earth`s surface that matches this condition.
I dont believe you are stupid so you must be acting dense on purpose. radiation is not conduction or convection. we also know radiation is much less efficient for transfering energy than conduction or convection. is that your 'amazing revelation' that you think I dont understand? maybe you are retarded, or at least getting senile.
you want a realistic example? let's compare radiant floor heating to forced air. radiant floor heating is much more comfortable but it is slow to warm up (or cool down) because it is comprised of a large heat sink that needs to be charged, then it heats the rest of the room by passive transfer. there is still conduction and convection but only by natural processes. there are no cold spots and there is a much smaller temperature gradient from the floor to the ceiling. on the other hand, forced air heating adds a bolus of hot air which quickly changes air temp but often leaves cold spots in areas where the forced convection doesnt reach, and the floor is always much cooler than the ceiling.
you are comparing large temperature differential, specific location transfers of heat by mostly conduction and convection with a little radiation whereas I am talking about a small temperature gradient, diffuse transfer of heat over large areas which reduces the action of conduction and convection, and increases the proportion of radiative transfer.
all of the SLoT 'truthers' are screwed up for the same reason. they confuse the two way flow of radiation from the surface to the atmosphere as something special but it is diffuse, small temperature gradient, low energy radiation that is not capable of doing work. sunlight is ordered, large temperature gradient, high energy radiation that is capable of doing work. none of them seemed to understand enough to comment on my thread about how small changes in solar output are much more likely to change areas of the climate system than the same nominal amount of change in the IR side of the equation because the IR does nothing besides hinder the outflow of surface IR to space. blocking IR escape can change the temperature of the heat sink by allowing it to absorb and hold more sunlight energy but not much else.
so, while it was amusing to me that you noticed my absence polarbear, I am not really interested in your stupid off topic red herrings that do nothing to clarify any issues. you dont even try to explain what they are supposed to be an example of.
1.) Where did I say that radiation is the same a conduction?
Don`t attribute your stupid statements to me !
You are the one that keeps using an ideal radiation profile that you copy from wiki which only applies for a system where there is no heat conduction and no work is performed.
Take a look at the title of this thread...!
"Atmospheric physics" (!)
Now that it finally did dawn on you how insignificant the radiative transfer from the ground to the atmosphere is as compared to heat conduction you try lecture me on heat flow in a room with forced air heating as opposed to room with a radiator....and where the cold spots are.
While I was showing you that an arc light heats another object quicker when it is shunted and acts primarily as a heater.
Only if you disallow all heat conduction... will the # of watts of the filament load be dissipated by radiative transfer.
It just does not dawn on you, does it ?
2.) After all heat conduction is disallowed that shunted arc light will heat another nearby object much quicker by RADIATIVE heat transfer in the IR range than it would do if the contact rods open and the arc light radiates way less IR but peaks the output at much shorter wavelength.
3.) Now try and heat something that is a less than ideal black body with that radiation profile...!!!
Good luck
4.) Even if heat conduction is disallowed, for ex. if that arc light were mounted on a satellite pointed at another close by object that object would be heated quicker when the radiation profile is shifted towards IR as opposed to emitting most of the energy as UV photons.
All the while the "back-radiation" concept you subscribe to along with the other naive Roy Spencer "yes Virginias" is using the entire energy profile of the second, the colder object to heat the radiator beyond it`s original temperature because there are a few photons at the high end spectrum coming back....which could only heat an ideal black body that performs no work.
Both objects in that stupid "thought experiment" you use as your gospel expand when they are being heated.
When heat expands an object it performed work
Not only have you been too stupid to grasp that, but you even went beyond and kept claiming with your copy&paste black body wiki radiation profile that there is the same radiative heat transfer from the source to the absorber even if the spectrum is shifted to the shorter wavelength.
And you still don`t understand the most basic thermodynamic principle that governs radiative heat transfer:
elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies after the encounter is equal to their total kinetic energy before the encounter. Elastic collisions occur only if there is no net conversion of kinetic energy into other forms. Averaged across the entire sample, molecular collisions can be regarded as essentially elastic as long as black-body photonsare not permitted to carry away energy from the system.
Did you ever hear of the "standard lapse rate"...???all of the SLoT 'truthers' are screwed up for the same reason. they confuse the two way flow of radiation from the surface to the atmosphere as something special but it is diffuse, small temperature gradient, low energy radiation that is not capable of doing work.
Obviously not
And according to you and all the rest of the AGW idiots a 120 km path length atmosphere "blocks" only outbound IR from the surface that how did you put it..:IR does nothing besides hinder the outflow of surface IR to space. blocking IR escape can change the temperature of the heat sink by allowing it to absorb and hold more sunlight energy but not much else.
"allowing it to absorb and hold more sunlight "
That's almost as funny as the "nuclear admiral`s" black objects don`t radiate faster or his volcano drilling project to prevent eruptions.
*As soon as a photon was emitted by a radiator that radiator just lost energy...it does not care what kind of detours that photon takes on its way out into space
*If you got air at 20 C then it emits the same frequency profile EMR with or without CO2.
* So how do you wind up with more photons with more CO2 ppm ?
Or did you discover in some sort of "thought experiment" that CO2 distorts Planck`s law ????
You like ideal black bodies ?
Okay then, let`s take an ideal black body at 4000 K and is so because it receives (incident) radiation from the 5000 K radiator
And place another one which is at 3000 K next to it.
You say the photons from the 3000 K b.b. are heating the 4000 K b.b.
which means that after it (the 4000 K) did it must emit more thermal radiation as before ( emit more, as in exceeding)
Max Planck says:
Planck's law - Wikipedia, the free encyclopedia
Poor Max never envisioned that Marihuana would be widely used and that there would be idiots like Roy Spencer who would say that a 4000 K black body with a 3000 K neighbor can exceed the thermal radiation of a 4000 K black body that was heated by the incident radiation of a 5000 K body...while the only radiation source feeding the whole system was the 5000 K body ...first the lone 4000 K and then the 4000K + another 3000 K .Very strong incident radiation or other factors can disrupt thermodynamic equilibrium or local thermodynamic equilibrium. Local thermodynamic equilibrium in a gas means that molecular collisions far outweigh light emission and absorption in determining the distributions of states of molecular excitation.
{Remark..but you say that none of that has any effect on emission and absorption...and that I was changing the topic
Fuck you are just as dumb as "numan" and his mob}
No physical body can emit thermal radiation that exceeds that of a black body, since if it were in equilibrium with a radiation field, it would be emitting more energy than was incident upon it.
Or are you trying to tell me that our heat does not just come from the sun, but that the earth and the "greenhouse gas" atmosphere are "extra heat sources" that somehow add up to more than what the sun delivered...(or than the 5000 K source in the example)
I might as well try discuss physics and chemistry with the "brilliant numan" who can oxidize limestone with oxides in the earth`s crust and generate enough CO2 to get a 120 psi atmosphere.
Discussing physics with you is like trying to teach somebody who can`t chew gum while walking to fly a multi-engine aircraft by instruments.
You would never be able to make sense what 6 different instruments are telling you and not know the difference if the airplane just rolled out of a steep turn or is loosing altitude...because you are not able able to process more than one thing at the same time and defend your inability by claiming that the VSI has nothing to to with the turn coordinator, just like you have been doing it with every example I showed you so far.
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