I'm a visual thinker and I use 3D images and animations in my head to think about scientific concepts. Learning is a thousand times easier when accurate, 3D representations are provided for me. I found these videos: http://www.cassiopeiaproject.com/videos2.php which are BRILLIANT! That quantum mechanics series provides ways to think about mathematical concepts visually which is essentially for me since I can only think about things visually. On youtube I came across some really good biochemistry related 3D animations but when I tried to find the full video I see it is a commercial video made by Pearson Ed. I'm gonna buy some of their videos someday soon but until then I'm looking for more free videos like those cassiopeia project ones. Anyone know any?