Summary #1382

Physicists Nail Down the ‘Magic Number’ That Shapes the Universe

quantamagazine.org
  • Physicists are coming closer to nail the exact value of the fine-structure constant, alpha, which was known to be close to 1/137.
  • Many famous physicists were enamored with it, saying it’s the golden ratio.
  • It’s everywhere, and controls how electromagnetic forces affect charged particles like electrons and protons.
  • “In our everyday world, everything is either gravity or electromagnetism. And that’s why alpha is so important”.
  • The new super precise measurement puts the value of alpha at 1/137.03599920611.

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