The Physicist Who Unified Two Forces of Nature

Steven Weinberg transformed particle physics by showing how the electromagnetic and weak nuclear forces could be described within one quantum field theory. His landmark 1967 paper supplied the structure that later became a central pillar of the Standard Model and predicted weak neutral currents subsequently observed in experiments. This documentary follows Weinberg from Cornell, Copenhagen and Princeton to Berkeley, MIT, Harvard and Texas, tracing the work that earned a share of the 1979 Nobel Prize in Physics.

Electroweak unification proved that forces appearing completely different at ordinary energies can arise from one deeper symmetry. Weinberg's theory helped establish the Standard Model, guided major experiments and shaped the modern search for physics beyond it. He was also a celebrated author who explained cosmology and scientific reasoning to broad audiences without abandoning technical depth. This documentary reveals both the conceptual leap behind unification and the enduring ambition to discover a final theory of.