As a retired airline pilot (United), and USAF/ANG pilot, I remain fascinated by objects that defy and yet use gravity. Model aircraft and high school physics at my military high school led me to the USAF Academy, graduating in 1963. My understanding and very tolerant wife has listened to me speculate on aliens and gravity for our 53 years of bliss. As an instructor pilot in both the Air Force and at United, I became comfortable with some of the technical jargon necessary to write my little bed-time story.