4 ms·
I'm probably missing something in the definition of "thermal window".
by disbelief 12y ago
I'm probably missing something in the definition of "thermal window".
- icegreentea 12y agoThe thermal windows refers to the fact the earth's atmosphere is pretty good at letting through longer wavelength IR than shorter wavelength IR. http://en.wikipedia.org/wiki/File:Atmosfaerisk_spredning.png http://en.wikipedia.org/wiki/File:Atmosfaerisk_spredning.png As an example. Visible light is that little bit all the way to the left. That entire big chunk on the right is the thermal window that they're talking about.