This article is a survey of the history and ideas of gauge theory. It discusses the emergence of symmetry, Noether’s theorem, the gauge principle, and the role of gauge fields in mediating interactions. It also examines the electromagnetic field and generalizations to non-Abelian gauge theories, concluding with a look at the dream of total unification.
Tables once ruled web design, with nested tables causing both creativity and chaos. Replaced by CSS for layouts, they’re now a nostalgic tool still essential for data.