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Dieter Brill (born 1933) is currently a Professor of Physics at University of Maryland, College Park.

Early life
Dieter Brill grew up in Heidelberg, Germany during World War II.

He received a B.A. from Princeton University in 1954, and a Ph.D. in Physics from the Princeton University in 1959.

In collaboration with James Hartle, in 1964 he discovered the Brill-Hartle geon. A geon is an electromagnetic or gravitational wave, held together by the gravitational attraction of its field energy. First postulated by John Wheeler, but explicit geon solutions to the vacuum Einstein field equation were not found. The Brill-Hartle geon provides theoretical physicists with a temporary approximate solution.

[edit] See also http://en.wikipedia.org/wiki/John_Archibald_Wheeler

Notable Research
Brill, D. R.; and Hartle, J. B. (1964). "Method of the Self-Consistent Field in General Relativity and its Application to the Gravitational Geon". Phys. Rev. 135: B271. doi:10.1103/PhysRev.135.B271. http://dx.doi.org/10.1103%2FPhysRev.135.B271