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Originally posted by FireMoon
A clouds albedo can vary from less than 10% to more than 90% hard to know the albedo of the supposed plane as they have different paint jobs and often don't actually have that much bare aluminium surfaces. I believe bare aluminium has an albedo of around 75%. So the answer is yes, there are times when clouds can be more reflective than aluminium.
Originally posted by FireMoon
reply to post by Phage
A clouds albedo can vary from less than 10% to more than 90% hard to know the albedo of the supposed plane as they have different paint jobs and often don't actually have that much bare aluminium surfaces. I believe bare aluminium has an albedo of around 75%. So the answer is yes, there are times when clouds can be more reflective than aluminium.
Originally posted by Phage
Clouds do not produce specular reflections. Painted or polished aluminum does.
Originally posted by Phage
Originally posted by FireMoon
reply to post by Phage
A clouds albedo can vary from less than 10% to more than 90% hard to know the albedo of the supposed plane as they have different paint jobs and often don't actually have that much bare aluminium surfaces. I believe bare aluminium has an albedo of around 75%. So the answer is yes, there are times when clouds can be more reflective than aluminium.
Clouds do not produce specular reflections. Painted or polished aluminum does.
Really now?
Specular reflection is distinct from diffuse reflection, where incoming light is reflected in a broad range of directions. An example of the distinction between specular and diffuse reflection would be glossy and matte paints. Matte paints have almost exclusively diffuse reflection, while glossy paints have also a fraction (not great, however) of specular reflection. A surface built from a non-absorbing powder, such as plaster, can be a nearly perfect diffuser. On the opposite side, polished metallic objects can reflect specularly light very efficiently (the reflecting material of mirrors is aluminum or silver).
Originally posted by zorgon
Well as long as NORAD is telling me "It's not a missile" I will take their word for it. If THEY are lying then we are doomed anyway and we might as well learn to speak CHINESE
or shall we take this to the debate forum ?
....NORAD, don't you think that for a day and a half they might have referenced a radar tower with ATC and found out it was a plane instead of claiming they didn't know....
Originally posted by network dude
sorry Zorgon, I hate to go against you and Phage, it is a recipe for disaster 99.9% of the time.
It also surprises me that so many at ATS do not understand or recognize perspective or what real rocket launches act like.
Originally posted by berkeleygal
I have been searching hi and low for other eyewitness accounts and there seems not to be too many.