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Key terms: antigravity antimatter babson bondi conspiracy demonstrated devices diverging drives efforts electromagnetism equations et al field fifth force funding general relativity geometry gravitational gravitational field gravitational force gravitational mass gravity gravity research heim levitation magnetic mass mathbf matter nazi bell negative mass newtonian normal matter physics point mass proportional propulsion rotating superconductor solutions spacetime superconductor tensor thomas townsend brown tidal force torr under general relativity unified field theory unlikely widely accepted Search external links cited by footnotes on Wikipedia page Anti-gravity: |
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