Posted: Mar 24, 2017 7:10 pm
"Brightness" is a photons per some area thing, isn't it? You'd have the same brightness, but at longer wavelength.
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=2537626#p2537626