A light conservation.
February 18, 2009 3:42 PM Subscribe
Does light (like heat) seep and weaken?
posted by Pennyblack to Science & Nature (5 answers total) 1 user marked this as a favorite
You have two 15' square rooms, no windows, painted white, with a solid wall in between and a bright light in the middle of just one. You also have two 15' square rooms, no windows, painted white, with a glass wall in between and a bright light in the middle of just one.
Would the light in the second lit room be as strong as the light in the first lit room?
I got to thinking about this because I have glass doors leading into my dining room (which is usually unlit). The room is still pretty bright from leakage, and the light even brightens up the windows leading outside. The light then goes into infinite space. Seems a waste.