Stunned Researchers Discover that Metals Can Heal Themselves ‘Without Human Intervention’

Scientists for the first time have witnessed pieces of metal crack, then fuse back together without any human intervention, overturning fundamental scientific theories in the process. If the newly discovered phenomenon can be harnessed, it could usher in an engineering revolution—one in which self-healing engines, bridges, and airplanes could reverse damage caused by wear and […]

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