布朗运动实验中常见的问题与解决的方法

布朗运动实验中经常出现微粒取材不易、凹坑制作不便、浊液容易干涸、光源易受影响等问题，这些问题困扰着教师。按照观察实验设计的基本理念——取材容易、结构简单、制作方便、重复性强、现象观察效果较好，从理论和实践上较详细地阐述了切实可行的解决问题的方法。

The Common Problems and Solving Methods in Brown Movement Test

In Brown Movement experiment many problems arouse, such as difficulties in obtaining particle materials, inconveniences in making concave hole, the incidental drying up of turbid liquid, and precarious light sources, all of which may be of puzzles to the teacher. This text has explained some feasible methods in solving the above-mentioned problems from theory to practice, and which is based on the basic concepts of observing experimental design: easiness in obtaining materials, simple structuring, convenient operating, high frequency of repetitiveness, and a better observing result.