One-Day Calculus Lecture

Dan's brief one-day calculus lecture (1-page PDF): link.

Morse Code

Visited the USS Intrepid aircraft carrier museum yesterday (here in New York City). Among the numerous exhibits in the hangar deck is this one on Morse Code. The scrolling digital blue lines are supposed to be translations of each other. What's rather glaringly wrong with this?

Now I Use More Greek Letters

Here's one of the full-page ads currently running on the Virgin Mobile USA home page. Thanks, you jackasses.