David Sereda got his start in the technology industry and eventually began developing eco-friendly technologies. He began his research into UFOs when he was asked to look at NASA footage that apparently had UFOs in them. This fascinated David and inspired him examine and try to understand the technology he was witnessing in these strange craft. He has since developed documentaries about his discoveries, and a great 2 hour documentary with Dan Aykroyd who discusses his decades of research into this field. He also discusses UFO secrets revealed to him by defense industry insiders. David has conducted scientific investigations with NASA and through other sources about alleged UFO sightings. He is convinced that NASA has evidence of alien contact captured on video.
http://www.americanantigravity.com - David Sereda discusses his research into solid-state physics and how to build a Zero-Point Energy generator based on what he's learned.
Sereda cites Paul Dirac's work on semiconductor holes which indicated these to be the source of free electrons in crystalline semiconductor materials. According to Sereda, these holes can be manipulated and artificially enlarged, which would allow semiconductor crystals to produce an unending stream of electrons from the "Dirac Sea" of Zero Point Energy.
Sereda also describes John Hutchison's crystal power cells, and cites conversations with Hutchison which have led him to believe that the crystal power cells are converting ambient electrical field energy into current rather than tapping directly into the Zero Point Energy field.
Sereda's views on Zero Point Energy originate from his work in resonant harmonic electronic fields and the electromagnetic properties of solid-state crystals.