The job of physicists is to worry about numbers, but one number has perplexed physicists for more than a century. That number is 0.00729735256—approximately 1/137. This is the fine-structure constant. It appears everywhere in the equations of quantum physics.
The fine-structure constant, designated by the Greek letter alpha (?), is one of the many constants of nature that power our laws of physics, l… More…
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