https://www.sciencealert.com/a-cracked-piece-of-metal-healed-itself-in-an-experiment-that-stunned-scientists On 7/20/2023 8:37 PM, theforge-request at mailman.qth.net wrote: > a-cracked-piece-of-metal-healed-itself-in-an-ex > periment-that-stunned-scientists