"The 49th National Primary and Secondary School Science Fair and 2009 Jiayi City Creative Zhuluo, Science 168" press conference was held on July 21. Teacher Mei Qi-guang from Taipei Municipal Zhongzheng Junior High School was invited to demonstrate "the fountain effect of liquid nitrogen", with the assistance of Deputy Minister Wu Tsai-shung (2nd from right), Jiayi Mayor Huang Ming-hui (2nd from left) and Chen I-Hsing, Director of National Taiwan Science Education Center (right).