The electron magnetic moment—a measurable property describing how quickly an electron's spin axis rotates when placed in a magnetic field—has been measured experimentally and calculated theoretically with an agreement of approximately 12-13 significant figures, representing the most precise agreement between theory and experiment anywhere in science.
factualpending
Evidence Quote
“there's nothing like this anywhere else in science with an agreement between uh the theoretical calculation and the experimental measurements. It's sort of I think it's it's 12 or 13 uh significant figures.”
Source
Quantum Fields: The Real Building Blocks of the Universe - with David Tong— The Royal InstitutionCreated: 8/10/2026, 10:55:31 PM
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