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World 6 · The Sun's Furnace: Fusion · 14 min · PRO

How the Sun makes light

The proton-proton chain, step by step

PRO · Atom Core

World 6: The Sun's Furnace: Fusion is part of PRO

The first world of Atom Core is free. PRO opens the other 23 lessons in 6 worlds — simulations, quizzes and all.

  • Why fusion needs extreme heat
  • Deuterium, tritium and the tokamak
  • Why isn't fusion power on the grid yet?
  • Smoke detectors, tracers and sterilisation
  • Carbon-14 dating
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  • All 60 labs — every world, every lesson
  • Practice exams and certificates

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