The Professor teaches at Mars University and has worked for Momcorp on several occasions but spends most of his time inventing ridiculous devices and sending the Planet Express delivery crew on suicide missions. What he is a professor of is never explicitly stated. In the episode " Mars University ", when asked what he is teaching, he responds: "The same thing I teach every semester, the mathematics of quantum neutrino fields. I made up the title so no student would dare take it"; however, this declaration has not precluded the professor from demonstrating mastery of whatever field of science is convenient for a given episode's plot, as shown in Bender's Big Score when he proclaims, "I can wire anything directly into anything! I am the Professor!", proceeding to link Hermes' disembodied head to the ship's computer. Approximately 100 years before the series' timeline, he taught a young (not yet Professor) Wernstrom, whom Farnsworth regarded as a prized student. After he returned a pop quiz to Wernstrom with a grade of A-minus (for poor penmanship), the two became bitter rivals (established in " A Big Piece of Garbage ").