1990—1991年,作者在美国一所大学当访问学者,工作之余,听了大学一年级的全部基础物理课程。这相当于国内工科院校的物理课程,课堂上观看到讲授此课程的麦克(M.E Browne)教授和其他教授现场表演的全部力、热、声、光、电的演示实验,大小计有100余个。其中大部分我们在国内也能见到。但是,他们在处理、表演、讲解这些演示实验时,确实具有独到之 From 1990 to 1991, the author visited a university in the United States as a visiting scholar. While at work, he listened to all basic physics courses at the first year of university. This is equivalent to the physics course of the domestic engineering colleges. In the classroom, the demonstrations of the full force, heat, sound, light, and electricity of the live performances of Prof. ME Browne and other professors who lectured on this course have seen more than 100 sizes. One. Most of them we can see in the country. However, they did have unique skills in handling, performing, and explaining these demonstration experiments.