1.) @wirebender...I have not had a chance yet to read the whole thread who said what ...but I`m going to...this is a very interesting discussion...and I`ll try answer that to the best of my ability...
I`ll start out by saying that in Physics text can be expressed as equations, and anyone who truly understands an equation has no trouble to substitute the equation with words..., that anybody can understand..
That is especially true with all the German Physics literature...it is a lot easier to understand than reading the same statements in English.
Many therefore prefer to study Physics and certain Math in German although that is not their mother tongue.
I could do this either way, in Text form or with equations...I do have all the necessary symbols in my alternate keyboard tables...which do You prefer..??
Thanks. Given a choice, I would prefer an explanation in words. I took a good deal of math, chemistry and physics in college, but when I decided to go into medicine, most of that fell by the wayside. I can do the math, but it is an endeavor every time I do. I don't make my day to day living with the math; I bend wires (orthodontics).
I do remember though from physics class that we weren't allowed to just use algebraic properties with physics problems because we found the problem easier to work out as a result of applying the property. When you alter the equation, even when the answer is the same, you have altered the physical meaning of what is happening.
Specifically, the claim that p=sigma (T^4 - T^4) represents the same physical processes as P=(sigma T^4)-(sigma T^4). To my understanding, the first represents the SB law as published by SB, that being a blackbody at a warmer temperature radiating into a colder background (no back-radiation); whle the second represents the net difference between a black body at a warmer temperature radiating into a colder background and a colder background which is represented to be a black-body radiating into a warmer black-body which is represented as a colder background. The answer is the same, but the physical processes they describe seem to me to be very different. One representing reality and the other representing a means of promoting AGW alarmism.
If you don't have back-radiation, you don't have AGW alarmism.
GW also uses back-radiation where nothing is missing from convective heat transfer, which is a massive amount...
But as You noticed they are also using the same proportionality factor (sigma) of the ideal black body to make the case for CO2 as a black body
radiator....
a black body can absorb light energy at all wavelength, that`s why it is called a "black body"
CO2 does not even qualify as a so called "grey body"
the Bolzmann law quantifies "j" as a THEORETIC thermodynamic Temperature
"Thermo-dynamic temperature" has the dimension of watts per square meter AT a GIVEN Temperature and the Bolzman law states it the original German text, that a black body, which absorbed X amount of watts in the form of radiation will re-radiate the amount (j) again at so many watts per
square meter...
The original Bolzmann equation therefore expresses the ENERGY FLUX DENSITY, which is a far cry from the ACTUAL TEMPERATURE which has the single dimension deg K...and even more of a far cry is to claim as
GW alarmists do, that CO2 acts as if it ACTUALLY had been IRRADIATED by a black body which by an actual black body that,... as their latest claim would have it
ACTUALLY at 288 deg Kelvin.
First of all if anyone wants to go from a flux density which is watts / m^2 at any temperature to express it as an actual temperature, this calculation cannot possibly done, unless we also assign
on what receiving mass the (j) watts per square meter is acting.
If we use for an area, let`s say 1 m^2, that still leaves us with a number that expresses Watts.
Which is a POWER UNIT,...the same as calories per time is....
So to get rid of the dimension for time let`s say we choose 1 second, now we have an energy unit as in (j) Watt seconds or (j) calories...
But in order to be able to calculate the EFFECT, by how much the ACTUAL TEMPERATURE (j) Watt-seconds would be raised per one second there is no way around specifying on what mass these (j) Watt-seconds
have been exerted.
And that is the only way ACTUAL TEMPERATURE could be calculated from Bolzmanns THERMODYNAMIC TEMPERATURE equivalent energy flux.
And again that would assume that the other mass is absorbing
THE ENTIRE Bolzmann energy flux...
And only an ideal black body could do that
"climatology" does make this (blatant) assumption and then goes on to
run this second "black body" the CO2 yet again through the same Bolzmann equation and feed energy back to the first original radiating body
without assigning a value for the mass yet again and try tell You, that this will now heat this radiation body to an even higher temperature as it could have achieved without the second body, which has received only a
portion of the energy from the first radiator ...
So they have a lot more watts (= Energy per time)
and have it generated by another
passive body, yielding in total now more than
the original watts (Energy per time) coming in from the sun which has fed the entire system.
I don`t care who is using what kind of rhetoric, but neither Bolzmann, Planck or any other Physisist would try tell You, that You can take X amount of Energy (watt-second) and simply by placing another object (...which does not
GENERATE any
ADDITIONAL energy whatsoever...)
that some how You can now have X+x /y energy ...
or X+x /y power as in watts or calories per second.
Then every engineer to date has been stupid...we could have squeezed X+1 times x/y Energy out of every fuel known to man, had we only increased the mass of the apparatus, that burns these fuels.
Why stop with one single passive receiver- or so called "back radiator"...lets use 10 of them,...then we can apply the Bolzmann and the Planck equations not just twice as these quacks are, but 10 times...
Then we boost the energy with 10 more "back radiation" steps to to a new X which in their logic is now X= X + x/y + (x/y)^2 + (x/y)^3....and so on till + (x/y)^10
and all we need to start with is just X watt-seconds.
This is the very same 'logic" that novices to higher math fall for, Aristotle has used it to test the intellect of his pupils in a very similar mathematical manner with this statement:
Although the sprinter can run faster than the turtle he can never overtake the turtle...
because while he is running x amount of time, covering x times his speed (v1) the distance d1, but the turtle has meanwhile moved x times its speed (v2) =d2.
So now the distance separating them is not just the original distance d-d1 but is d-d1+d2.
This will add to the time when the sprinter can overtake the turtle the time
delta t = d2/ (v1-v2)....
but after the sprinter has run for delta t, the turtle yet again has added the "extra distance" delta t * v2 =d3 to the distance
and so on...all the way to 1/infinity....
And that is exactly the same joke "climatology" has performed with the "extra" -"back-radiation" energy.
Yes I know in the strange world of finance "math" this is routinely done and You can "generate"
million$ more starting with way less $$ without even spending any energy as in "work"..simply by using compound interest $$$%%%% which like "back radiation" is not just an interest percentage of the original principal amount of $ they started with but is the principal + p% and then
doing it again ...and now they have $$$= principal$ +p% + (Princ.$ + the new $+p%)* p%...and so on and on...and by repeating this step over and over again they "generated" many million$ from next to nothing
without any additional input...so they claim...but we all know by
now what really does happen with this "magic money" generator...the same as any other perpetual motion machine that have supposedly been invented...they all stall after having
consumed the original energy,...and then it`s up to us tax payers to fork over our money which we earned with real & hard work to "re-stimulate"
this magic interest "back-radiation" money machine , ...and are supposed to believe, that if we participate we`ll get more out of it as we put in to begin with...
Hey You could even apply the same "black body" and "back-radiation" analogy to the way banks should work in theory.
By the way no matter where You look but especially so at "wikipedia"...every definition of almost every law of Physics that may be applied to "climatology" has been shit and
pissed over by "climatologists" adding their own assertions...
Example:
Stefan
Stefan–Boltzmann law
From Wikipedia, the free encyclopedia
"Since the
emissivity with greenhouse effect (weighted more in the longer wavelengths where the Earth radiates) is
reduced more than the absorptivity (weighted more in the shorter wavelengths of the Sun's radiation) is reduced, the equilibrium temperature is higher than the simple black-body calculation estimates. As a result, the Earth's actual average surface temperature is about 288 K (14 °C), which is higher than the 255 K effective temperature, and even higher than the 279 K temperature that a black body would have."
No math, no measurements, no proof, nothing more than an assertion and a very ridiculous one at that...
and that was written by P. K. Das,
retired Metereologist @ the U of Nairobi (retired)
in a publication ",
The Earth's Changing Climate"
before that he was a meteorologist @ the meteorological department of India...
a bureaucrat.
The problem is, that people who`s major is not in physics will interpretate that as a valid amendment to Staphan Bolzmann`s laws
because Wikipedia lists his garbage on the same page.
No matter where You look, these people have been pissing ink by the barrel fulls all over the internet and
it would take a lifetime and the entire physics community to go through all the red tape involved with editing
invalid claims like these from Wikipedia.
These bastards are taking full advantage secure in the knowledge that most people don`t have their own
books or have access to a University library where they could read up on Bolzmann without these garbage attachments disguised as amendments which "climatologists" have added almost everywhere You look.
@ IanC...
No I don`t cite "my own opinion" as You accuse me of how I "back up my own claims"...
I do`nt need the internet for this either, but I do have shelves full of Physics & Chemistry books that I needed for my work and I do have access to my Universities Library even though I am now retired.
Come see me and I`ll show You what`s really in the book that for example publishes the original German Text, say regarding Stephan Bolzmann`s laws.
So, but when a "Meteorologist" who worked as a civil servant in India adds his crap opinion and that is now being used as a reference by all the rest of this "climatology" crowd to back their rather strange opinion You accept that as a "proven fact of science".
But hey...I don`t care, stay the course...and let these clowns "educate" You,...if You so prefer...
I doubt it though, that this way You would pass even an entry exam in Physics...maybe at some holy cow town U in India where You can tip them like a a waitress expects a tip and then get passed the exam... or maybe in "climatology"...
I passed my exams probably long before You were even born and then went on to teach Physics & Chemistry at several U`s in North America...but I never ever taught my OPINIONS to anybody.