Nuclear Fusion
Nuclear fusion is a process in which two light atomic nuclei combine to form a heavier nucleus, releasing a significant amount of energy. It is the reaction that powers stars, including the Sun, by fusing hydrogen isotopes into helium under extreme temperature and pressure. Fusion has the potential to provide a nearly limitless, clean energy source on Earth, but achieving controlled fusion for practical energy production remains a major scientific and engineering challenge. Research efforts include magnetic confinement (tokamaks) and inertial confinement methods.
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Q: What world-changing idea, small or big, would you like to see implemented by humanity?
A: This is easy. I would like to see the development of fusion power to give an unlimited supply of clean energy, and a switch to electric cars. Nuclear fusion would become a practical power source and would provide us with an inexhaustible supply of energy, without pollution or global warming.
— Stephen Hawking (Brief Answers to the Big Questions)
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ENGLISH COLLECTIONSEPTEMBER 15, 2025 AT 15:38:23 UTC