Students experience the Magdeburg hemispheres experiment during a science festival at a primary school in Wuzhou, south China"s Guangxi Zhuang Autonomous Region, Sept. 29, 2026. The science event was held on Tuesday at the primary school to mark the upcoming National Day. (Xinhua/Huang Xiaobang)

　　Students watch a robot dog performance during a science festival at a primary school in Wuzhou, south China"s Guangxi Zhuang Autonomous Region, Sept. 29, 2026. The science event was held on Tuesday at the primary school to mark the upcoming National Day. (Xinhua/Huang Xiaobang)

　　Students build circuits during a science festival at a primary school in Wuzhou, south China"s Guangxi Zhuang Autonomous Region, Sept. 29, 2026. The science event was held on Tuesday at the primary school to mark the upcoming National Day. (Xinhua/Huang Xiaobang)

　　A student flies a model plane during a science festival at a primary school in Wuzhou, south China"s Guangxi Zhuang Autonomous Region, Sept. 29, 2026. The science event was held on Tuesday at the primary school to mark the upcoming National Day. (Xinhua/Huang Xiaobang)

　　(Web editor: Zhang Kaiwei, Liang Jun)