Quote:
Originally Posted by Bob F
White paint reflects almost as much energy as a mirror, but not directionally like a mirror, so less of the reflection might make it to space than a mirror's reflection.
|
The difference between light reflecting off a mirror and light reflecting off a white roof is the difference between "specular" reflection and "diffuse" reflection.
Here's an example of "specular" reflection (off the cold calm water of Icy Bay, Alaska).