All known matter consists of various chemical elements, each present with different abundance, so that the problem arises, experimental at first, theoretical later, of understanding why some elements are abundant and others rare.

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Third Lecture Theories on the Origins of the Elements

  • Enrico Fermi

摘要

All known matter consists of various chemical elements, each present with different abundance, so that the problem arises, experimental at first, theoretical later, of understanding why some elements are abundant and others rare.