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物理学史表明,研究气体放电对发现电子、从而揭示原子还有更微小结构具有重要的意义.人教版实验教材《物理》选修3—5正是基于这个理念,在描述电子发现的历史时增加了有关气体放电的内容,对气体放电的机理作了适当解析.此外,还安排了一个用光谱管进行辉光放电的演示实验.新教材完全摆脱了过去教材对这段历史一带而过的作法.应该说,这节内容的增加和气体
The history of physics shows that it is of great significance to study the phenomenon of gas discharge in discovering electrons and revealing even more minute structures of atoms.People’s Education Pilot Experiment Materials Physics Electives 3-5 It is based on this idea that when describing the history of electron discovery The content of the gas discharge was added and the mechanism of the gas discharge was properly analyzed.In addition, a demonstration experiment of glow discharge with a spectral tube was also arranged, and the new teaching material completely got rid of the past teaching materials of this period of history It should be said that this section of the increase and gas