Unified field theory classical field theory and, two years later, that of Theodor Kaluza, who extended General Relativity to five dimensions. Continuing in this latter direction, Oscar Klein proposed in 1926 that the fourth spatial dimension be curled up into a small, unobserved circle. In Kaluza–Klein theory, the gravitational curvature of the extra spatial direction behaves as an additional force similar to electromagnetism. These and other models of electromagnetism and gravity were pursued by Albert Einstein in his attempts at a classical unified field theory. By 1930 Einstein had already considered the Einstein–Maxwell–Dirac System [Dongen]. This system is (heuristically) the super-classical [Varadarajan] limit
Unified primary Primary For All Candidates." Several variations of this measure have been filed to date: 2014 Initiative Petitions 38 and 51. The campaign did not collect the 87,213 signatures required to get Petition 54 onto the ballot. (The "Open Primary" proposal that used plurality voting did collect enough signatures, but was defeated.) Frohnmayer later joined the campaign for STAR voting, an alternate voting method which would replace blanket/unified primaries with a single election that uses a score ballot and automatic runoff, though still promoting the unified primary under the name "Equal Top Two". Unified primary A unified primary is a proposed