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The first chemical elements

Big Bang Nucleosynthesis: Cooking up the first light elements
How the first nuclei of helium, lithium and other light elements were cooked up shortly after the big bang
Equilibrium and Change: The physics behind Big Bang Nucleosynthesis
The physics behind Big Bang Nucleosynthesis, the period shortly after the big bang that saw the first production of light elements such as helium and lithium
Elements of the past: Big Bang Nucleosynthesis and observation
How to reconstruct the abundances of light elements shortly after the big bang, and thus test some important predictions of the big bang models against observation