Quote:
Originally Posted by aerohead
PhD Richard Feynman claimed that simple window pane would prevent UV radiation from passing.
Visible spectrum radiation would pass through, then change to long-wave infrared as soon as it touched a surface, and get trapped inside the 'greenhouse.'
Selective coatings on films could be tailored to particular wavelengths, as far as 'radiative forcing' goes.
They could do NOTHING as far as 'conductive heat-gain, or 'heat-loss' were concerned.
Sitting close to the glass, you might not 'feel' your body chilled or heated so much, but the R-Factor ( or it's inverse, heat-transfer coefficient ) of the cabin would be whatever it was.
At some point you need 'insulation.'
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yeah i definitely can feel the cold coming in during winter nights if i put my hand near the window. thats why i was asking if the claims are simply false about IR going both ways