Theory that describes both the electromagnetic force and the weak force . Though the forces appear to be different, they are actually different facets of a more fundamental force. This theory, formulated in the 1960s by Sheldon Glashow
born 1932
, Steven Weinberg
born 1933
, and Abdus Salam
born 1926
, represents a 20th-century scientific landmark and won its authors a 1979 Nobel Prize.
It was validated in the 1980s with the discovery of the W particle and Z particle , which it had predicted. See also fundamental interaction , unified field theory .