The Exploratorium is a San Francisco landmark where science and art are examined in a hands-on way. Tonight they will be hosting a night-time event about skateboarding. Deluxe team riders will be doing a demo on a mini ramp while Paul Schmitt and Exploratorium scientist Paul Doherty talk about the physics behind it. SLAP's Mark Whiteley will also be giving a talk on historical and social aspects of skateboarding culture, and how skateboarding has changed the urban landscape of San Francisco. 18+, with bar. Get more info from the Exploratorium.