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Re: [Phys-L] Absorption and Scattering of IR By CO2 Gas




> On 2024/Jul/30, at 17:48, Timothy Folkerts via Phys-l 
> <phys-l@mail.phys-l.org> wrote:
> 
> I can think of two important issues off-hand with re-creating a demo like
> this.
> 
> 
> And since most cameras would be designed to see THROUGH the atmosphere,
> they are probably designed to operate AWAY from the bands that CO2 and H2O
> absorb.
> 
> Tim



What a pain!  

If the above is not the case then, perhaps — remember, I have the Biden 
Syndrome and am 7 years older —   one may make use of the greater density of 
CO2 by using a vertical column.  The IR source at the bottom and the camera 
above.  Perhaps there are band pass filters for only absorption region(s).  



bc … exhibiting his BS by choosing to vac. in Paris on the hottest day(s) of 
the year, he thinks. [1]  He can’t wait to get to London, a little cooler.  

p.s.  I have this idea from the column at the Exploratorium, for which purpose 
I’ve forgotten (BS again).  It had ”dry ice” at the bottom.  

I once tried to float an Al foil ”boat” on butane.  

BTW  I advertise for a Chinese company’s hand held, yes!, MCA.  with a CsI xtal 
  It also has a PIN diode for alpha, Beta.   The contrast with my Canberra 35 
boat anchor is amazing.  

https://physicsopenlab.org/2024/04/14/kc761b-the-new-gamma-spectrometer-from-deepace/
 
<https://physicsopenlab.org/2024/04/14/kc761b-the-new-gamma-spectrometer-from-deepace/>
  



[1]  35 C.    A  heat wave (misnamed) in Salinas (CA) is 23 C.