校园中越少年共结科技情日前,在崇左市龙州县第一中学举行了一场特殊的中越边境青少年科技文化交流活动。来自越南高平省合江中学的学生代表来到龙州一中,和中方的同学们一起携手共结科技情。活动现场,广西科技馆的科技辅导员们带来的“无处不在的震荡”和“神奇的液氮”两个科普实验秀。在表演“神奇的液氮”时,因为是第一次这么近距离接触如此明显的热胀冷 Recently, a large number of Chinese and Vietnamese border youth science and technology exchange activities were held in No.1 Middle School of Longzhou County, Chongzuo City. Student representatives from Hejiang Middle School, Gaoping Province, Vietnam, came to Longzhou One to join hands with Chinese students in the science and technology work. Activities at the scene, Guangxi Science and Technology Museum of science and technology counselors brought “ubiquitous shock ” and “magical liquid nitrogen ” two popular experimental show. In the show “magical liquid nitrogen ”, because it is the first such close contact so obvious thermal expansion