This is a good indication that at incredibly high energies, the strengths of the electromagnetic, weak and strong forces are probably the same. Will the unification of other forces emerge at even higher energies? Experiments already show that the effect of the strong force becomes weaker as energies increase. Further support came from the Nobel-prize-winning discovery of the W and Z particles, which carry the electroweak force.īut it is only at the higher energies explored in particle collisions at CERN and other laboratories that the electromagnetic and weak forces begin to act on equal terms. Support for these ideas came first from the Gargamelle experiment at CERN – when physicists found the first direct evidence of the weak neutral current, which required the existence of a neutral particle to carry the weak fundamental force. A similar discovery came a century later, when theorists began to develop links between electromagnetism, with its obvious effects in everyday life, and the weak force, which normally hides within the atomic nucleus. In the 1860s, James Clerk Maxwell recognized the similarities between electricity and magnetism and developed his theory of a single electromagnetic force.
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