高中物理绪论课介绍物质的研究对象时,经常会使用这幅彩图(图1),图中的蛇形象非常奇怪,蛇头咬住蛇尾,人们称之为“衔尾蛇”.衔尾蛇,作为世界上最为古老的神话符号之一,在不同的文明中有不同的象征意义.物理学中,这条蛇则形象地表示物理研究对象的尺寸层次;蛇头和蛇尾分别代表物质形态的两种极限——宇宙与粒子.随着现代物理的发展,我们了解到宇宙学问题的解决依赖于粒子物理的发展,而宇宙又是粒子 When the senior high school physics introduction class introduces the material research object, it often uses this color picture (Figure 1). The picture of the snake is very strange, and the snake head bites the snaketail. People call it “ghost snake”. Snake, as one of the oldest mythological symbols in the world, has different symbolic meanings in different civilizations. In physics, this snake visually represents the size of the physical study object; snakeheads and snaketails represent material forms, respectively. The two limits - the universe and the particles. With the development of modern physics, we understand that the solution to the cosmological problem depends on the development of particle physics, which is also a particle