Sigma Series Lectures The Sigma Series Lectures, presented at the Virginia Air and Space Center in downtown Hampton, provide to the general public monthly presentations related to science and technology. If you would like to be notified by e-mail of upcoming Sigma Lectures, please go to the VASC homepage (http://www.vasc.org/) and there is a place to "Sign me up for VASC e-news" and you should get an email for each Sigma.
	Upcoming Lectures (In Chronological Order) Sigma Series Lectures June 5, 2012, 7:30 p.m. Cave of the Winds: The Remarkable History of the Langley Full-Scale Wind Tunnel by Joe Chambers July 10, 2012, 7:30 p.m. Langley's Contribution to Human Spaceflight: Orion Pad Abort 1 Flight Test by TBA August 7, 2012, 7:30 p.m. International Space Station by Mark L. Uhran September 11, 2012, 7:30 p.m. Aeronautical Entrepreneuring with UAVs by Steven M. Sliwa October 2, 2012, 7:30 p.m. TBD by TBD November 6, 2012, 7:30 p.m. Commonwealth Center for Advance Manufacturing's business model and mission by David R. Lohr
	Recent Past Lectures (In Reverse Month Chronological Order) Sigma Series Lectures May 2, 2012, 7:30 p.m. The U-2 Incident: A Son's Perspective by Gary Powers, Jr. April 3, 2012, 7:30 p.m. Where The Cloud Meets the Ocean by Bill Vass, CEO of Liquid Robotics March 6, 2012, 7:30 p.m. Expanding the Envelope: Challenges and Opportunities in Aerospace Research by Dr. Mark Lewis, University of Maryland
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