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Ice in various shapes and sizes is seen at the Yuqiao Reservoir, Tianjin, North China, January 14, 2009. The water of Yuqiao Reservoir is frozen due to temperature drops and the ice swells because of the negative thermal expansion effect. [Xinhua]
![Ice in various shapes and sizes is seen at the Yuqiao Reservoir, Tianjin, North China, January 14, 2009. The water of Yuqiao Reservoir is frozen due to temperature drops and the ice swells because of the negative thermal expansion effect. [Xinhua]](http://images.china.cn/attachement/jpg/site1007/20090115/000d87ad3cdd0ad8efc90f.jpg "Ice in various shapes and sizes is seen at the Yuqiao Reservoir, Tianjin, North China, January 14, 2009. The water of Yuqiao Reservoir is frozen due to temperature drops and the ice swells because of the negative thermal expansion effect. [Xinhua]")
