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 send your address to 4sigma dash list at logicteacher dot com.
	Upcoming Lectures (In Chronological Order) Sigma Series Lectures July 8, 2008, 7:30 p.m. The Life and Works of Galileo: A Guided Tour by Dr. Kerry V. Magruder, University of Oklahoma August 12, 2008, 7:30 p.m. MESSENGER Mission by Ralph McNutt September 2, 2008, 7:30 p.m. TBD by TBD October 7, 2008, 2:00 p.m. NASA at 50: A Celebration of Science, Technology and the Spirit of Human Exploration by Ken Reightler, Former Astronaut and now, Vice President, Lockheed Martin Space Systems Co.-Human Space Flight: NASA Human Spaceflight: Past, Present, and Future October 14, 2008, 2:00 p.m. NASA at 50: A Celebration of Science, Technology and the Spirit of Human Exploration by Dr. James W. Head III, Professor, Geological Sciences, Brown University: The Exploration of the Moon and Planets October 21, 2008, 2:00 p.m. NASA at 50: A Celebration of Science, Technology and the Spirit of Human Exploration by Dr. Jeffrey D. Sachs, Professor and Director, Earth Institute, Columbia University: Title forthcoming October 28, 2008, 2:00 p.m. NASA at 50: A Celebration of Science, Technology and the Spirit of Human Exploration by Roy V. Harris, former Director of Aeronautics, NASA Langley: 50 Years of Aeronautics Research in NASA
	Recent Past Lectures (In Reverse Chronological Order) Sigma Series Lectures June 3, 2008, 7:30 p.m. Impacts of Climate Change on Coastal Virginia and Chesapeake Bay: Physical, Chemical and Ecological Processes by Dr. James Bauer, College of William & Mary May 6, 2008, 7:30 p.m. An Update on Strategic Initiatives in Modeling and Simulation in Hampton Roads, the Commonwealth of Virginia and Nationally by Dr. Michael McGinnis, Executive Director of the Virginia Modeling Analysis and Simulation Center April 1, 2008, 7:30 p.m. An Energy Revolution for the Greenhouse Century by Dr. Martin Hoffert Professor Emeritus of Physics New York University March 4, 2008, 7:30 p.m. Why the World's Information Technology Leader Can't Count Votes by Professor Bryan Pfaffenberger, University of Virginia
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