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托里拆利实验是初中物理教学中一个非常重要的演示实验,长期以来由于这个实验操作不便,演示过程中人体直接接触水银危害教师的身体健康,给教学带来很大困难。便携式大气压强演示仪是笔者与二位老师合作,自制的一个初中物理教具。该教具操作方便,安全快捷,比较圆满地解决了教学中的难题。在2000年9月举行的第五届全国自制教具展评活动中被
Torricelli experiment is a very important demonstration experiment in junior middle school physics teaching. For a long time, due to the inconvenience of this experiment, the human body directly exposed to mercury during the demonstration process harmed the physical health of the teacher and brought great difficulties to teaching. The Portable Atmosphere Demonstration Instrument is a junior high school physics aid developed by the author in cooperation with two teachers. The teaching aid is easy to operate, safe and quick, and it solves the difficult problems in teaching satisfactorily. In the fifth national self-made teaching aid exhibition and review held in September 2000,