Spectroscopy/Spectroscopes

Okay, so Ashley had already posted a video on how to make one version of a spectroscope, but I found this really cool website. Not only does it have two ways to make a different spectroscope, but it also has almost a mini lesson on what spectroscopy in a simple, easy to understand way. I learned a lot with just that small amount of background knowledge.

http://sci-toys.com/scitoys/scitoys/light/cd_spectroscope/spectroscope.html