Sydney Coleman

In Nov 2007, the Harvard physics department received the sad news that prof. Sydney Coleman had passed away.

Sydney was one of the most entertaining lecturers ever, and an extremely colorful character. The physics department had an impromptu memorial service the next day, when his lecture "Quantum Mechanics in your Face" was played on video on the widescreen of the Jefferson 256 lecture hall.

I highly recommend the video linked above even for people who did not have the pleasure of knowing Sydney.