I feel blessed to have found this old man. He's such a good teacher, something that makes this RU-vid account to be such a good channel worth of my attention and subscription.
Johnnie, this was a very nice educative video, again. Unlike in the U.S., universities in Germany usually do not have mascots. (The university of Rostock only has Alma the Owl) Fitting to this Lesson 3, you may take Heinrich Hertz as kind of a mascot, as he first experimentally detected electro magnetic waves on 13th November 1886, when he was working at the university of Karlsruhe.