Video PlayerClose

A student experiences an interactive exhibit in a mobile science museum in Shuangluan District of Chengde, north China's Hebei Province, Oct. 10, 2017. (Xinhua/Wang Liqun)

A student experiences an interactive exhibit in a mobile science museum in Shuangluan District of Chengde, north China's Hebei Province, Oct. 10, 2017. (Xinhua/Wang Liqun)