27 Jun '11, 7am

Stunning Natural Illusion Forms a 'Ghost City' in China

The forces of Nature have shifted continents, sculpted towering mountains and sprawling plains -- but her architectural prowess doesn't end there, at least as it meets the eye. Earlier this month, after heavy rainfall in East China, an entire 'ghost city' appeared to rise up from the flooded Xin'an River near Huanshan, complete with buildings and trees where none had stood before. Stunned locals marveled at the sight, many believing it to be a vortex to a lost civilization. Scientists say, however, that the truth behind this incredible apparition isn't mystical at all. The 'ghost city' that appeared so clearly, yet briefly, over the Xin'an River, scientists believe, was the result of a mirage, not unlike the illusion of water that often appears on roadways during hot weather. Wikipedia offers a brief description of what causes mirages to form: Cold air is denser than warm ...

Full article: http://www.treehugger.com/files/2011/06/stunning-natural-...

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