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最近,看到一篇少年科学论文,作者是杭州市十四中学的一位学生刘晓华,论文的题目十分新颖有趣——《火车叫声引起我的注意》。它,也引起了我们注意。这篇别开生面的论文,讲述了这样一件事情:作者每天经过西湖之畔。忽然有一天,他听见了火车的叫声。作者敏锐地抓住这一现象,深入研究,发现那天浓雾弥漫。他认为,水比空气传播声音的本领大。由于空气的湿度大,所以他在西湖边听见
Recently, I saw an article on juvenile science by Liu Xiaohua, a student at Hangzhou No.14 Middle School. The topic of the essay is very original and interesting - “The train cry caused my attention.” It also caught our attention. This uncompromising essay recounts one such thing: the author goes by the banks of the West Lake every day. Suddenly one day he heard the train’s cry. The author keenly seize this phenomenon, in-depth study and found that thick fog filled the day. He believes that water is more capable of transmitting sound than air. He heard it by the West Lake because of the humidity of the air