Friday Physics #14 - Triangle Edition

Summer classes are in session?

You've got to expect me to be in and out quite a bit today with all the concentrated teaching I have to do (omg), but bring on the questions!

As always, I don't claim that my answers are definitive, that I know everything, or that anything I say belongs on the mainpage. This is just having a beer and talking crazy stuff with your local neighborhood science geek.

ETA: Give me ideas here, because I'm still writing the first exam, and I want something silly to go on it!

ETA2: Big Thank You (very very very sincerely) to whoever on Charlie Jane (or whoever unshared it) for not leaving this on the io9 mainpage. I might not have survived that.