Researchers have found a universal law that predicts how objects shatter, from glass bottles to liquid drops.
Archived version: https://archive.is/newest/https://interestingengineering.com/science/french-scientists-law-how-objects-shatter
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Apparently my information was outdated. But for decades scientists were unable to explain why spaghetti usually breaks into more parts than two, when bended.
Here, have something to read: link to news.mit.edu article