Kaluza-Klein theory

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Proper noun[edit]

Kaluza-Klein theory (plural Kaluza-Klein theories)

  1. (physics) A model (not believed to be literally true) developed by physicists Theodor Kaluza and Oskar Klein that attempted to combine gravity and electromagnetism by adding a fifth dimension to our four-dimensional spacetime.
  2. (physics) Any of a number of theories that try to explain forces by adding extra dimensions to our spacetime.