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10-10-2013, 04:31 PM
Quote:It was a result so unexpected that MIT researchers initially thought it must be a mistake: Under certain conditions, putting a cracked piece of metal under tension — that is, exerting a force that would be expected to pull it apart — has the reverse effect, causing the crack to close and its edges to fuse together.http://web.mit.edu/newsoffice/2013/tensi...Czs.reddit Interesting. |
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