American Antigravity
Tim Ventura
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Steve McGrath on Vanguard Spacecraft
17 minutes
Posted Sep 24, 2012 at 3:07 pm.
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X-Prize Team Leader & Founder of Vanguard Spacecraft Steve McGrath joins us to talk about his plans for breakthrough propulsion […]
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Mark McCandlish on UFOs
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Gary Stephenson on Gravity Control
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