richeee: hope you're comfy.
goatfire: Light DOES interact with glass. Most UV light is filtered by glass (and that is an interaction). Transparent materials, like glass, tend to be composed of atoms requiring relatively high energy states. Because visible light carries less energy than the transparent materials, the atoms cannot absorb the light. Some think the lack of interaction is because glass doesn't contain large particles (like less transparent materials) to scatter the light waves. Hold a flashlight up to glass, some of the light is reflected, and some is scattered, although the majority of the light is unaltered, proving that light does indeed interact with glass.
MacGnG: I had a thread about that in the Ladies Lounge
. And everyone knows there's a pot o' gold at the end of the rainbow, silly rabbit. Just find the leprechaun...