Small Fonts.
While NBS students get to bring tons of notes plus textbook for every open-book exam (well, some even bring dictionary), peeps at the engine side can only bring one piece of A4-size paper and basically cram the living hell out of the stuff they wish they knew from birth.
Hey hey, not easy hor, especially when they have so many formulas while we only need to crap our way home.
I salute you engineers.