Gravity amplifier
Propulsion component associated with
Bob Lazar
's
S-4
testimony
In the S-4 narrative first aired by Bob Lazar on KLAS-TV in May 1989, a gravity amplifier (/ˈɡrævɪti/ /ˈæmplɪˌfaɪər/) is one of three rotating, 180°-steerable devices arranged in a triangular pattern around a central antimatter reactor on the upper level of a disc-shaped craft reverse-engineered at the S-4 facility near Papoose Lake, channeling a "gravity wave" (alternately described as an "anti-gravity wave") produced by an element 115-fueled reactor and enabling the craft to travel belly-first into its own self-generated gravity-distortion field while evading visual detection via gravitational lensing.
According to Lazar, the amplifiers sit on the craft's lower level, with "gravity emitters" coupled to the reactor's central antenna rising through the upper deck; the emitters rotate up to 180 degrees to project a focused gravity beam, allowing the craft to "fall" belly-first along the distortion gradient and, at the same time, to bend light around the hull such that the craft may appear effectively invisible from certain angles.
Configurations
Lazar has reportedly described two operational configurations in which the three amplifiers can be run. In the "Omicron" configuration, a single amplifier is engaged, sufficient to lift the craft from the ground and perform low-altitude maneuvers. In the "Delta" configuration, all three amplifiers are engaged simultaneously, reportedly enabling the gravity-wave distortion required for interstellar travel.
Reactor coupling
According to Lazar, the amplifiers are allegedly fed by the disc's antimatter-based reactor, roughly the size of a basketball hoop and topped by a sphere or semi-sphere reportedly emitting a force field that repulses human flesh. The reactor, purportedly fueled by a stable isotope of element 115, is said to produce the gravity wave that the amplifiers then rotate and project.
Physics constraints
Mainstream physicists and skeptics have noted that no such "gravity wave" propulsion effect has been demonstrated experimentally, and that the element on which the alleged reactor purportedly runs — moscovium, first synthesized in 2003 — has in practice shown only highly unstable isotopes with half-lives measured in hundreds of milliseconds, rather than the stable form Lazar's testimony requires. The gravity-amplifier concept has nonetheless become a widely referenced element of UFO and electrogravitics discourse, alongside other purportedly anti-gravity propulsion concepts such as alien reproduction vehicles and unconventional electrogravitics patents.