Sentences with phrase «about emission spectra»

(I'm guessing whoever wrote the text in the broadening sections is more used to thinking about emission spectra, and so got lazy and kept referring only to emission.)

Lots of black body curves but not used to thinking about emission spectrum for a gas.

Not exact matches

Beyond the wavelength coverage of the space - borne observatories, the spectra taken in Hawaii even turned up a curious new feature — a boost in emissions of unknown origin at wavelengths of about 3.3 microns.

Sounds about right — right down to your quantum mechanics, the absorption and emission of photons (Einstein was a patent clerk) by matter, the spectra, any inconvenient fact.

Has anyone actually done any «real» laboratory experiments with CO2 mixtures, using a real 288 Kelvin thermal radiation source that is putting out a 10.1 micron peak wavelength emission spectrum at about 390 W / m ^ 2.

With about 90 % of the carbon emissions from our electricity sector coming from coal fired power stations, Australia will need to look beyond just coal towards the full spectrum of available energy solutions.

Thus please, before you accuse someone of trying to mislead, just read some textbook about emissions / absorption spectra or ask it anyone who has knowledge of such things, who you may trust.

Observations of earth emission spectra seen outside the atmosphere from satellites should co0ntain components that are emitted from surface that are 333 K or even higher; and this is important since the Wien displacement Law, would shift these emission peaks even further away from the CO2 15 micron nand as the spectral peak moves from its nominal 10.1 microns at 288 K down to about 8.7 microns at 333 K.

Skeptics do not agree about very much except a few generalities: the absorption / emission spectra of gases measured in laboratories; the laws of thermodynamics, etc..

Second, robotic probes have measured Venus» atmosphere to be about 97 % CO2, and we can see from the image above (click for a larger version) that the absorption spectrum for CO2 (at Earth temperature and pressure — Venusian temperature and pressure increases the width of the absorption bands, making CO2 a stronger absorber in Venus» atmosphere than in Earth's) strongly overlaps the peak emission spectrum of Venus» surface.

The one area in which it seems that I differ from what Phil has said, is that regarding the emission of a (frequency) continuum spectrum of thermal (due to Temperature) radiation by neutral gases; say N2, or O2, or how about a mono - atomic gas like Argon.

But then you really aren't talking about the absorption / emission spectrum of your pure molecule, are you?

I pull this number out of my mind meaning that the N2 - O2 spectrum corresponds to a blackbody with 100um peak, which would correspond to a body at about 40K with total emission of 45mW / m2.