Water Phase Diagram: Stop, Collaborate, and Listen

Clearly, I need to use XKCD's water phase diagram the next time I am teaching statistical physics.

When my students are too loud, I'll tell them to stop, collaborate, and listen.

Also notice the really great pun at the bottom. I really love that!

Bolzano-Weierstrass Rap

I was looking at the website of mathematician Dave Richeson (after browsing through one of his papers), and I decided to take a look on his blog. In a recent entry, he links to an "awesome" rap performance of the entire proof of the Bolzano-Weierstrass theorem by mathematician Steve Sawin. This is wrong on so many levels. (Tomorrow we have our dinner with the new Somerville frosh, so we could use this to scare away the new math majors...)