(Q5997)

English

fine-structure constant

physical constant quantifying the strength of the electromagnetic interaction between elementary charged particles

  • fine structure constant
  • Sommerfeld's constant
  • Sommerfeld fine structure constant
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Enrico Fermi at the blackboard.jpg
3,250 × 4,198; 2.07 MB
Enrico Fermi lecturing on the fine structure constant (the blackboard contains an error: it should read 𝛼=𝑒²/ℏ𝑐, not 𝛼=ℏ²/𝑒𝑐, in cgs units) (English)
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