re: Hardest and most interesting class you took in college

P Chem for the hardest and one of the most interesting. I think the switch from traditional physics to the quantum level with particle in the box equations shell shocked a lot of students. I think the average grade in a class of engineers was around a 45.

Also what pushed me out of pursuing a worthless Math minor was Elementary Mathematics. Basically the entire class was about writing proofs for why math works. 1 is greater than 0 because 0+1=1 and 1+1=2.

Almost forgot about my most interesting environmental science class: Hurricanes. Taught by Dr. Lui who helped write the book on paleotempestology (the study of prehistoric tropical cyclone landfalls using geological proxies).