Unsealed: Alien Files – Antigravity episode 52: Experts discuss the possibility of advanced alien technology that could allow UFOs to fly at blinding speed or hover effortlessly a few feet above the ground.
In April 2011 the FBI declassified decades’ worth of secret government documents that contain thousands of reports of UFO sightings and alien activity. Each episode of this half-hour series tackles one alien case by investigating the previously off-limits government files. The program re-examines key evidence and follows developing leads based on newly released information.
Mass UFO sightings, personal abductions, government cover-ups, and alien news from around the world are some of the topics covered by the show’s panel of specialists, who include journalists, researchers, and radio and TV hosts. After watching an episode of `Unsealed: Alien Files’, you may begin to believe that `we are not alone’.
Unsealed: Alien Files – Antigravity episode 52
Anti-gravity
Anti-gravity (also known as non-gravitational field) is a hypothetical phenomenon of creating a place or object that is free from the force of gravity. It does not refer to the lack of weight under gravity experienced in free fall or orbit, or to balancing the force of gravity with some other force, such as electromagnetism or aerodynamic lift. Anti-gravity is a recurring concept in science fiction, particularly in the context of spacecraft propulsion. Examples are the gravity blocking substance “Cavorite” in H. G. Wells’s The First Men in the Moon and the Spindizzy machines in James Blish’s Cities in Flight.
“Anti-gravity” is often used to refer to devices that look as if they reverse gravity even though they operate through other means, such as lifters, which fly in the air by moving air with electromagnetic fields.
What’s commonly misconstrued is that while anti-gravity is the nullification of gravity, it is not repulsive gravity or negative gravity. Gravity plates and compensators as envisioned in contemporary science fiction also are not anti-gravity.
In Newton’s law of universal gravitation, gravity was an external force transmitted by unknown means. In the 20th century, Newton’s model was replaced by general relativity where gravity is not a force but the result of the geometry of spacetime. Under general relativity, anti-gravity is impossible except under contrived circumstances.
