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Message: <blockquote data-quote="imhotep" data-source="post: 29116303" data-attributes="member: 562115">True... But you never know. Just 10 years ago this was impossible. Now someone demonstrated at least it's not impossible. No one can expect anything for the next two or three decades. Scientists are aware of it. A competing fusion reactor design is under construction. The International Thermonuclear Experimental Reactor (ITER) is under construction in France. The ITER reactor uses a Tokamak reactor design, whose main distinction is the use of a magnetic field to constrain hydrogen into a very concentrated space, while heating up that hydrogen to insanely high temperatures. The ITER reactor is slated to be "switched on" in 2025. The engineering lift for this is immense. The project uses 3,000 tons of superconducting magnets, connected by 200 kilometers of superconducting cables, all kept at minus-269 degrees C by the world’s largest cryogenic plant. The temperature needed to get the hydrogen atoms to fuse is thought to be about 150 million degrees C, or 10 times hotter than the sun.</blockquote>

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