This launched his 30-year voyage in search of the so-called unified field theory that he hoped would show that these two forces are really manifestations of one grand underlying principle.

His scientific interests were always broad, but his most noted work has been in unified field theory. Four forces were believed to drive the laws of physics: gravity, electromagnetism, the strong ...

Quantum field theory marries the ideas of other ... Quantum electrodynamics (QED) is the unified “electroweak” theory of electromagnetism and the weak nuclear force, which governs nuclear ...