在物理学中存在着大量的临界问题.所谓临界问题,一般是指物体的运动从一种形式转变为另一种形式,或者一种物理现象转变为另一种物理现象,或者一种物理过程转变为另一种物理过程的过程中,存在着分界限的问题.例如:物体所处的平衡状态的破坏; There are a large number of critical problems in physics, the so-called critical problems, generally refers to the movement of objects from one form to another form, or a physical phenomenon into another physical phenomenon, or a physical process In the process of changing to another kind of physical process, there are some problems such as the demarcation of the balance state of the object,