You know those tips you can find in magazines or newspapers under the "Did you know that..." title? Well, I was thinking to try to have a thread about such things. You know, post things that are usually unknown to many, doesn't matter what field. Just make some sort of database of knowledge. The only rule is that each post must containt a true "did you know" statement.
Did you know that... it is impossible to lick your elbow?
