He`s actually the only person in Alabama who understands the ideal gas law. Everyone probably thinks he misspelled perversely. I know the ideal gas law is something of chemistry, but I guess it`s supposed to be some kind of joke with mathematics. Any ideas? In a ring, «$(a)$» is a common notation for the principal ideal generated by $a$. (See en.wikipedia.org/wiki/Principal_ideal.) At the same time, I worked with a computer programmer from Alabama who quit and became a lawyer, and he was married to a Hooters waitress who became a psychiatrist. If only there was a way to tell who took that picture. I also recently saw the only person in Alabama who can afford a lotus on a blackboard in the math department building: The War of Stereotypes: NASA engineers in Alabama or stupid, racist rednecks. Probably Huntsville. 9/10 people in Huntsville seem to be engineers. Mole is the number of atoms divided divided by 602,200,000,000,000,000,000,000,000 (6,022 ×10^23) Wow, when I saw that the person who originally photographed this put a watermark, I thought it was a bit crazy, but it seems that people always find a way to steal content. imgur.com/a/PMkNm/ Except for all the best rocket scientists and engineers in the world and the Marshall Space Flight Center. Pressure×volume=(number of moles)×(a certain constant depending on the pressure measurement)×(temperature in Kelvin).