conuly

Heh, our chemistry professor told us something similar when we were discussing the structure of atoms. I don't remember his exact words, but they were something like: "This is not how an atom looks. However, it works for what we want to do here, so we'll use that model anyway."

As for that blood article, I thought it was quite interesting! My mother always used to tell me that my brother had some sort of rare blood group... supposedly the blood he donates is categorized differently than what we would get if he needed a transfusion. Or something. I still don't really get that.

All I know is that I'm B-, which is rather uncommon here, but unfortunately I'm so low on red blood cells myself that I couldn't give blood even if I wanted to.

Reposted because of a typo.