On June 17 the weekly “Night Life” social event at the California Academy of Sciences will feature the “Physics Circus” with ringmaster Zeke Kossover. From the event listing: “Can you really break the bottom out of beer bottle just with your hand? Are personal hovercrafts the wave of the future? Can you light a bulb in liquid nitrogen? Is walking on glass as safe as physicists claim? These questions and more will be answered as Zeke and his crew will explain the physics behind the dazzling experiments.” Music by Disco Shawn. Tickets for people 21 and over only are $12; information here, ticket purchases here.