Congress? Past my bedtime, I'll have to check in the morning to see if I was right.
Rachel, in one of my classes today, I was introducing the topic of graph theory, originated by Leonhard Euler when he studied the problem of the 7 bridges of Koenigsberg, Prussia. I was telling the students a little bit about Euler and his many mathematical contributions, and so I brought up Euler's Identity of course, and after extolling the beauty of the identity itself, I showed the class the knife bearing Euler's Identity that you gifted me. They were much impressed, and pointed out that it was probably the only knife of its kind in the entire universe! Thanks!
- GT