The public lecture on particle boundary theory took place the following night. Unlike undergraduate elective courses, this class had no credits or enrollment restrictions. Anyone interested could attend. Given the difficulty the course had been advertised with on the official school website, only a few undergraduates had shown up to join in on the fun. The majority of the attendees were master's and doctoral students from the School of Sciences.
The large classroom in the graduate building could accommodate four hundred people. With many faculty members from the School of Sciences present, the room was almost full.
The lecture time had arrived.
Zhao Yi pushed open the back door and walked in. The classroom erupted in warm applause.