KQED created this video of the 2013 Science Hack Day San Francisco organized by BB pal Ariel Waldman! More than 200 people — makers, scientists, artists, designers, etc. — spent the night at the California Academy of Sciences and hacked on a fantastically diverse and compelling assortment of prototypes, demos, and experiments. Ariel says "Here's how you can organize a Science Hack Day in your own city!"