Children visit the science and technology museum in Zhengzhou, central China's Henan Province, Jan. 3, 2010. Many children visited the science and technology museum to learn scientific knowledge during the three-day New Year holidays. (Xinhua/Zhu Xiang)
Children visit the science and technology museum in Zhengzhou, central China's Henan Province, Jan. 3, 2010. Many children visited the science and technology museum to learn scientific knowledge during the three-day New Year holidays. (Xinhua/Zhu Xiang)
Children visit the science and technology museum in Zhengzhou, central China's Henan Province, Jan. 3, 2010. Many children visited the science and technology museum to learn scientific knowledge during the three-day New Year holidays. (Xinhua/Zhu Xiang)
