If stumbling into quicksand ranks on your list of worries, don't panic. You won't sink in—at least not all the way. Real quicksand is certainly hard to get out of, but it doesn't suck people under the ...
People or animals caught in quicksand find it very hard to escape 1. Here we show that quicksand acts as a trap because it becomes unstable when it is forced to move — first it liquefies, and then it ...
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