2017年7月7日 星期五

Winds Trigger Pond Growth


Wind is a force to be reckoned with. It can stir up monsoons, carry dust thousands of miles, and sculpt rock into sinuous arches. But sometimes, the effects of wind go unnoticed for years, like when it carves away slowly at the edges of a pond. via NASA http://ift.tt/2suFpH8

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