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Why stalactites are all similar Physicists often go underground to shield their experiments from cosmic rays but a group of researchers in the US has recently been underground for another reason -- to study the growth of stalactites in caves. Raymond Goldstein and colleagues of the University of Arizona have developed a model which predicts that all stalactites basically have the same shape. Observations at the nearby Kartchner Caverns State Park confirmed that real stalactites do indeed have this shape (M B Short et al.
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