Engineering students test flying human-powered helicopter - College Park, MD

COLLEGE PARK, MD - MAY 11: David Chang, left, and Ben Woods, far right, make last minute checks with others as pilot, Judy Wexler, center, prepares to test a human-powered helicopter named "Gamera" on Wednesday May 11, 2011 inside an auxiliary gym at the Comcast Center on the campus of the University of Maryland in College Park, MD. The team was comprised of graduate and undergraduate students from the University of Maryland's A. James Clark School of Engineering. Wexler is a biology student, who volunteered to pilot the craft. (Photo by Matt McClain/For The Washington Post via Getty Images)