The following paper reviews development of antigravity research and notes how published research disappeared by the mid 1950s, for political reasons, apparently to be resumed in secret. The author, T. C. Loder Ph.D. (professor at Univ. of New Hampshire) then addresses recent scientific findings and witness testimonies showing that electrogravity research is now part of a growing black budget industry. See  http://www.seaspower.com/Outsidethebox-Loder.htm