摘要
Thirteen-year-old Zhou Licheng is a pupil at the Beijing Xicheng Experimental School, and recently won second prize in the "Future Scientist Award" for his invention - a device that prevents smoke from coming down the flue. He won a 10,000-yuan cash prize, and his school was also awarded 40,000 yuan. The "Future Scientist Award" was set up through the joint efforts of the Ministry of Education, the China Association for Science and Technology, and the Hong Kong H. S. Chau Foundation. Its aim is to
