Welcome • User Guide
ToS • Privacy • Canary
Donate • Bugs • License

©2026 Poal.co

λmax= 2.8977729×103mK 193.0

=15014.367357513 nanometers

https://www.vcalc.com/wiki/sspickle/Blackbody+wavelength+from+Temperature

But when I do it on the calculator I end up with 150.14 and not unless I go 105 I get the right number.

eta: I'm asking\ because I'm going to show climate retards that co2 absorbs only low energy photons and I can't be fucking up the equation, Thanks

λmax= 2.8977729×10^3mK 193.0 =15014.367357513 nanometers https://www.vcalc.com/wiki/sspickle/Blackbody+wavelength+from+Temperature But when I do it on the calculator I end up with 150.14 and not unless I go 10^5 I get the right number. eta: I'm asking\ because I'm going to show climate retards that co2 absorbs only low energy photons and I can't be fucking up the equation, Thanks

(post is archived)

You are currently inside a comment thread.
Click here to see all the comments (40).
[–] • 2 pts

>Black body radiation isn’t how it transfers energy to the atoms around it.

I'm aware. The point of this exercise is to show the temperatures involved for emitting wavelengths that co2 is able to intercept aren't from the surface. Too warm to produce 15µ.

[–] • 3 pts

Your argument makes no sense.

[–] • 2 pts

The argument for global warming is the sun heats the earth , the IR travels to space but co2 "traps" longwave IR and sends it back to "reheat" the earth. Despite the thermodynamic errors in their description, they assume all IR is intercepted by co2 when that is not the case. Only wavelengths that are 15µm.

Any disagreement?

[–] • 4 pts

Yes. You’ve got the theory wrong in a few ways.

Sunlight doesn’t pass through our atmosphere without interaction with it and only heat the earth. It heats every molecule that absorbs a photon. Solid, liquid, or gas, so it heats the atmosphere, the oceans, and the land.

CO2 can absorb more photons that just 15um. There are two more transitions in the IR alone. But those are just vibrational modes. It also has electronic and rotational modes that allow it to absorb or emit energy from the sun or other sources.

CO2 is a very good IR absorber and can transfer than energy in a lot of ways to other atoms/molecules. It has a ton of vibrational relaxation modes. Methane is an even bigger problem this way.

A better way to think of it is not as a shield around the earth but like holding a black metal rod in your hand. The sun heats the rod and transfers the energy efficiently to your hand. It’s not totally preventing the energy from leaving your hand but it’s adding a lot to the system. That’s a rough analogy because I’m tired but you have a ton more energy getting pulled into the atmosphere/earth system and getting spread around and changed. So it’s not just 15um in vs 15um out. Molecules and atoms just don’t work that way.

IR Spectra https://webbook.nist.gov/cgi/cbook.cgi?ID=C124389&Type=IR-SPEC&Index=1#IR-SPEC

This may also interest you.

https://aviris.jpl.nasa.gov/proceedings/workshops/01_docs/2001Green_co2_web.pdf