May 11, 2011 6:22 pm Human-Powered Helicopter University of Maryland engineering students try to get their human-powered, lightweight helicopter off the ground. Local 1:43 ‘Black Swan Impact' author tells why she named a character Jummy 5:28 GW's encampment reaches a week as other college protests turn violent 1:59 Smart devices make accidental 911 calls, emergency communications centers say 2:03 DC leaders introduce bill to require registration for mopeds 3:05 ‘An Evening With Leslie Odom Jr.' coming to Strathmore Friday