Whose work first measured the magnetic moment of the electron with extreme precision?
Quick Answer
Richard Feynman helped develop quantum electrodynamics, which predicts the electron’s magnetic moment with extraordinary accuracy. This became one of physics’ most precise tests.
The Full Story
Richard Feynman was one of the key founders of modern quantum electrodynamics, the theory describing electromagnetic interactions at the quantum level. QED makes extremely precise predictions for the electron’s magnetic moment, including tiny corrections from virtual particles. These predictions have been tested to astonishing precision and remain among the best agreements between theory and experiment in all of science. Feynman shared the 1965 Nobel Prize in Physics.
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