David Sereda on UFO Propulsion Systems (Part 2) from American Antigravity

American Antigravity

Tim Ventura

David Sereda on UFO Propulsion Systems (Part 2)

28 minutes Posted Sep 24, 2012 at 5:41 pm.

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David Sereda continues an in-depth discussion on UFO propulsion system reverse-engineering and his vision of the universe, gravity, and how to […]