Fizzy Drinks and Light Bending hijinks

So I had a sprite today in a cup while I was doing my homework. It just so happens that there was a lamp that was on my desk that was shining light on the cup of soda. Here, I realized that the beams of light coming from the lamp, (red, blue, green) were going through the plastic of the cup, the fluid, the bubbles, and the ice. They were probably being bent in all sorts of directions because they were moving through different mediums. When the light hit the liquid it probably slowed down, and if it traveled through the ice it probably slowed down even more. The plastic of the cup also probably caused it to refract. I'm unsure about how it would move through the bubbles however, or if it would even go through. The bubbles are air, but of a different composition then the one of the surrounding room. The light probably travels through it at a different speed, being bent.

Inside the wire

In this downward spiraling economy, i try to cut corners on spending. This week, i did so by trying to cut open one of my broken headphone connections and reattach it to another. Cutting open the wire, I noticed that there were three wires, green, red, and a copper looking one. From past physics knowledge i know that the green wire is reflecting green waves and absorbing the red and blue ones, and that the red wire is reflecting red and absorbing green and blue. The copper wire is reflecting red and green and absorbing blue. I got to thinking that when enclosed, these wires probably don't have any color since there is no light to reflect off of them.