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fine-structure constant
From Wiktionary, the free dictionary
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English
Noun
fine-structure constant (uncountable)
- (electrodynamics) The fundamental physical value α, presumed to be constant, that characterizes the strength of the electromagnetic force. Equal to about 1/137 = 0.0072973525.
- Synonyms: Sommerfeld's constant, electromagnetic coupling constant
Translations
fine-structure constant
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