fine-structure constant
physical constant quantifying the strength of the electromagnetic interaction between elementary charged particles
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fine-structure constant
Summary
fine-structure constant is a physical constant[1]. It draws 2,727 Wikipedia views per month (physical_constant category, ranking #7 of 43).[2]
Key Facts
- fine-structure constant is credited with the discovery of Arnold Sommerfeld[3].
- fine-structure constant's instance of is recorded as physical constant[4].
- fine-structure constant's instance of is recorded as coupling constant[5].
- fine-structure constant's instance of is recorded as dimensionless quantity[6].
- fine-structure constant's Commons category is recorded as Fine-structure constant[7].
- fine-structure constant's time of discovery or invention is recorded as 1918[8].
- fine-structure constant's numeric value is recorded as {'amount': '+0.0072973525693'}[9].
- fine-structure constant's facet of is recorded as fine structure[10].
- fine-structure constant's facet of is recorded as electromagnetic interaction[11].
- fine-structure constant's maintained by WikiProject is recorded as WikiProject Mathematics[12].
Body
Definition and Type
Recorded instance of include physical constant[4], coupling constant[5], and dimensionless quantity[6].
Why It Matters
fine-structure constant draws 2,727 Wikipedia views per month (physical_constant category, ranking #7 of 43).[2] It has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.[13] It is known by 13 alternative names across languages and contexts.[14]