Classical unified field theories since antisymmetry seemed essential for electromagnetism, the symmetry requirement was relaxed for one or both fields. Einstein's proposed unified-field equations (fundamental laws of physics) were generally derived from a variational principle expressed in terms of the Riemann curvature tensor for the presumed space-time manifold. In field theories of this kind, particles appear as limited regions in space-time in which the field strength or the energy density are particularly high. Einstein and coworker Leopold Infeld managed to demonstrate that, in Einstein's final theory of the unified field, true singularities of the field did have trajectories resembling point particles. However, singularities are
Unified Theory (band) "a little too much like its members' former projects." However, "there are a couple of unique gems in the derivative dust." "The Stranger" stated that the album "sounds like Jane's Addiction, but not as hard." "Classic Rock" stated that the band's "self-titled debut has to be one of the most exciting, spiritual albums of recent times" and that "their sound combines flashes of the off-the-wall genius that was Blind Melon's calling card, the odd reminder of the 90s Seattle scene and a whole host of fascinating influences." In support of the album, Unified Theory performed a number of dates in