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Submission + - Room Temperature Superconductivity Found in Graphite Grains (technologyreview.com)

siddesu writes: Here's an interesting recipe. Take a spoonful of graphite powder and stir it into a glass of water. Leave for 24 hours at room temperature and then filter the powder. Finally, bake overnight at 100 degrees C and allow to cool.

And voila! A material that superconducts at over 300 kelvin--room temperature. At least that's the claim today from Pablo Esquinazi and buddies at the University of Leipzig in Germany.

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