'Candyland' stone forests form using deceptively simply physics

The stunning, razor-sharp spires of stone forests can form in deceptively simple conditions, a sugary new experiment finds. 

Using sticks of candy, researchers discovered that cylindrical shapes can naturally sharpen into points in still water as they dissolve — no complicated flow required. This phenomenon could explain why sharp stone pinnacles are often found where easily-dissolvable limestone rock predominates. Examples include the Stone Forest, or Shilin, of Kunming, China, the jagged pinnacles of Tsingy de Bemaraha National Park in Madagascar, and the Pinnacles of Gunung Mulu in Malaysia. 

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