High Quality Content by WIKIPEDIA articles! Electrogravitics is a hypothesis proposed by Thomas Townsend Brown and Brown`s subsequent extensive experimentation and demonstrations of the effect. The term was in widespread use by 1956. The effects of electrogravity have been searched for extensively in countless experiments since the beginning of the 20th century; to date, other than Brown`s experiments and the more recent ones reported by R. L. Talley,Eugene Podkletnov, and Giovanni Modanese, no conclusive evidence of electrogravitic signatures has been found. Recently, some investigation has begun in electrohydrodynamics (EHD) or sometimes electro-fluid-dynamics, a counterpart to the well-known magnetohydrodynamics, but these do not seem a priori to be related to Brown`s "electrogravitics" .