Tracing the History of Anti-Gravity Propulsion: Experiments, Theories, and Covert-Technology Myths

To the point

Anti-gravity research is a long, controversial history of bold claims and conspiracy theories, spanning Roger Babson and Thomas Townsend Brown's early capacitor experiments, Theodor Kaluza and Oskar Klein's fifth‑dimension ideas, mid‑century UFO lore and “G‑engine” fantasies, Podkletnov and Ning Li's gravitational‑shield tests, Dynamic Nuclear Polarization, and later private efforts led by Hal Puthoff and Salvatore Pais to explore new frameworks like geometric electromagnetism, yet there is no widely replicated, accepted demonstration of gravity manipulation.