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Nuclear fusion reactor in South Korea runs at 100 million degrees C for a record-breaking 48 seconds
(www.livescience.com)
just science related topics. please contribute
note: clickbait sources/headlines aren't liked generally. I've posted crap sources and later deleted or edit to improve after complaints. whoops, sry
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By cooling down the air that contains it until it's liquid, then distilling that. Actually a standard process though usually you freeze down natural gas not just random air, it's quite helium-rich.