Photo of the Week: Jammin' by the Gate "This week we're calling ourselves 'Apocalyptic,' said this group of musical, chemistry grad students playing near Sather Gate. It was a Saturday and foot traffic was sparse, but they had already collected $5.25 in a guitar case. The performers -- Ken Brown, vocals; David Huong and Tom McCormick, guitar; Mike McCarthy, trombone; and Adam Moule, on plastic bucket -- started playing together last semester. They now have 19 songs on their play list. Peg Skorpinski photo.

On Superbowl Sunday, right as the big game was about to start, 30 teenagers and about a dozen mathematicians, teachers and parents gathered on the Berkeley campus -- not to watch football, but to study mathematics. (continues)