 But that's the kind of a deal. Things that you had to memorize in high school, perhaps, and maybe some odd stuff in college that just pops up out of nowhere. Yeah, there is a, and I used to know it. I want to say there was a song. This is the dumbest thing. It was from Chemistry. Hang on. Was it Avogadro's number? Avogadro number. There was a song for that.