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Several children experience the "air shot" at a science show promoting the concept of energy conservation, environmental protection, and other science knowledge, in Kunming, northwestern Yunnan Province, on Sunday, Sept. 16, 2007.

Children experience the "human body conductor" at a science show promoting the concept of energy conservation, environmental protection, and other science knowledge, in Kunming, northwestern Yunnan Province, on Sunday, Sept.

(CRI.cn September 17, 2007)