Butoh dance is a post WWII form of modern Japanese performance art seen as a combination of dance, traditional Japanese theater, and mime, and which is described as provocative and shocking. Sounds like fun! The local Japanese dance group Theater of Yugen presents an evening of Butoh dance tonight, featuring nature-themed performances, along with music by new music ensemble the Nanos Operetta. 2840 Mariposa (between Florida and Alabama, near Project Artaud), 8 p.m., $15. Other......

It's all about the numbers at tonight's Ask a Scientist: The World's Most Fascinating Numbers event. Ask any burning math (from pi to irrational, imaginary, familiar, and beyond) question to Keith Devlin, who is NPR's "Math Guy," as well as a prof and author. There will also be food, drinks, socializing, and chat about "the universe's most fascinating mysteries!" 7 to 9 p.m. Canvas Gallery, 1200 9th Avenue, SF 94122. If greed and scandal,......

Tonight: The Canvas Gallery is hosting "Ask a Scientist," with Nancy Garland, a Technology Development Master at the U.S. Department of Energy, discussing Alternative Energy: A Cleaner Future for Cars. Tuesday: The best thing about bubbles is how they warp concepts like "There's no such thing as a free lunch." Hitachi Data Systems is hosting Lunch 2.0 in Santa Clara -- eat free, play foosball, and if you're so inclined, check out any of ten......

Saturday, there's the Canvas Gallery 5th Anniversary Party. $10 gets you in any time between 6 p.m. and 2 a.m. for food and drink specials, live music, and the chance to rub shoulders with real live artists. Sunday: we're going to the David L Pharr Historic Streetcar Facility's fifth annual Open House celebration. This is such a cool event, we can't thank SFist Matt enough for sending it our way: from 11:00am and 4:00pm,......

Our concert picks for the week of 9/22-9/28. We've got not one, but three CDs to give away to a lucky winner this week, in honor of three upcoming concerts: Bloc Party tonight at the Warfield and Popscene, John Wilkes Booze on Saturday at Thee Parkside, and Jeff Hanson at Cafe Du Nord on Monday. Enter to win Silent Alarm Remixed, Telescopic Eyes Glance The Future Sick and Jeff Hanson. (Contest ends 9/28). This week......

Based on Wonkette's early numbers, it looks like it could be party-time in the Bay Area. But things have a way of changing at the last minute, so who knows. Either way, you're going to be an a mood for inebriation and laughter - either as a salve for your psychic wounds or as a confirmation of your smug contentment. Why not drop by the Canvas Gallery and watch the returns along with comedians......