David Alzofon is a technical writer with twenty years' experience in Silicon Valley. He was also a witness to the development of Dr. Frederick Alzofon's gravity-control technology, from an Air Force report on his father's research in 1960, through publication of a lengthy paper on the technology at the 17th Joint Propulsion Conference in 1981, through clandestine experiments that validated it in 1994. After his father's death in 2012, Mr. Alzofon began a quest to mainstream the technology, with the aim of opening the space frontier, energizing the global economy, and reversing climate change. This resulted in the publication of "How to Build a Flying Saucer (And Save the Planet)" in 2017, followed by "The Top-Ten UFO Riddles - Solutions from Science" in 2018. Mr. Alzofon is currently a speaker at alternative energy conferences.