Originally Posted by bitcore
Anodizing is freaking cool. Similar to electroplating, an oxide coats the metal and one of the more comon methods of anodizing, varrying the voltage varries the color. It also has a tendancy to reduce a metal's conductivity... so if you ever need to have an anodized piece of metal conduct, then sand off a piece where the wire contacts or whatever. Since this oxide coats the metal, it also prevents oxidation (rusting). The layer is MUCH MUCH thinner than any layer of plated metal can be. It works by being a certain thickness, roughly twice the wavelength of light that reflects off of it, which gives it it's color. So this crap's thin & lightweight.
Hey, that's kinda cool.
(the sad part is I looked up what it was and read about it a few days ago when someone mentioned it, lol)