Noticed that I hit 500 subs and had nothing prepared so here's some more science. This time, it's something that would actually be covered in a high school physics class, so for all you bronies browsing youtube for ponies instead of studying for finals, this should cover about a chapter and a half of optics. This is the slightly edited version since, despite all the banners telling I'm enabled for uploads longer than 15 minutes and the fact that I've already uploaded longer ones, this keeps getting rejected for length. Youtube needs to get its act together.

I don't own ponies, rainbows, or optics, but I would share them if I did.