Date: Mon, 11 Feb 2002 10:56:54 -0600 (CST)

Author: Paul Nord

Subject: Re: Weird Color Phenomena


By the same token... the sky appears blue when you view the light that the
atmosphere scatters. But when viewed in transmittion (sunset) it appears
red, orange, and pink.


On Mon, 11 Feb 2002, Paul Nord wrote:

> Sounds like a standard old demo. I understand (from the Feynman Lectures)
> that it can be done with strong dyes. The color reflected is the
> complement of the color transmitted. A red dye will make the surface
> appear red because it is reflecting the red light very strongly. But
> viewed in transmittion, you see no red. So the transmitted light might
> look green or blue.
> Paul