So when he assigned Problem 5.3-1 (the infamous “evaporation of a glycerin drop into falling air”) for the third straight year, he expected the usual results: a cascade of panicked emails, a few noble failures, and maybe one or two correct solutions from his teaching assistant.
That afternoon, Thorne walked to the university archives. He pulled the faculty copy of Geankoplis, 3rd Edition, donated by the author herself in 1984. Inside the front cover, in faded ink, was a short inscription: So when he assigned Problem 5
“Show me,” Thorne whispered.
Thorne didn’t sleep. He spread the 42 solutions across his dining table. The formatting was perfect. The handwriting? Seven different styles—but the thinking was one. It was as if a single mind had possessed the entire junior class. Inside the front cover, in faded ink, was
Leo hesitated. Then he reached into his backpack and pulled out a slim, unmarked spiral notebook. He opened it to a page covered in the same lambda-dot notation. The formatting was perfect