Photo by mosley.brian

Photo by mosley.brian

AIR SEX: The Air Sex World Championships bring miming like you’ve never seen it before to the Rock and Roll Hotel (1353 H Street NE) tonight. Not sure what to expect? Review our coverage from the 2010 event. Doors 9:00 p.m., show 10:00 p.m. $10.

LASERS: Physicist J. Thomas Schriempf discusses lasers (lasers!), explaining how they work and how they’re used in industry, the arts, and medicine in his talk “The Age of Light” at the Morrison House (116 South Alfred Street Alexandria VA) this evening. This event is the first of a new Cultural Discussion Series sponsored by the Torpedo Factory Artists’ Association, the Alexandria Archaeological Commission, and the Morrison House Hotel. 6:00-8:00 p.m. Free (food and drink available for purchase).
BIKE RIDE: If you’ve been finding it too hot to ride your bike during daylight hours, be sure to join BicycleSPACE (1019 7th Street NW) for their Firefly Ride and Picnic this evening. Beginning at twilight enjoy a group bike ride followed by an evening picnic. RSVP through the Facebook invite. 8:00-11:59 p.m. Free.

MUSIC: Folk-pop Canadian singer-songwriter Justin Hines performs on the Kennedy Center Millennium Stage (2700 F Street NW) tonight. 6:00 p.m. Free.