物理学发展的现阶段的特点可用一句话来概括,那就是深入到微观水平。微观阶段包含两重含意:一是研究物质的微观体系的构成和运动规律;二是从微观结构的深度上来研究宏观介质的物理性质以及它们和辐射场(电磁波)的相互作用。本世纪二十年代末,微观粒子运动所服从的量子规律就已经建立。在这个成就的基础上,人们一方面进一步研究各种原子和分子的具体结构和它们的物理、化学的性质,另一方面从向上和向下两个方向大力向外扩展。上是指从微观的深度来研究宏观介质的物理性质以及它们和电磁波的 The characteristics of the current phase of the development of physics can be summed up in one sentence, that is, to the micro level. The microscopic phase contains two meanings: one is the study of the composition and movement of the microscopic system of matter; the other is the study of the physical properties of the macro-media and their interaction with the radiation field (electromagnetic wave) from the microscopic depth. The late twentieth century, microscopic particle movement subject to the quantum law has been established. On the basis of this achievement, people further study on the one hand the specific structures of various atoms and molecules and their physical and chemical properties, on the other hand, they vigorously expand outward and upward in both directions. On the micro-depth is to study the physical properties of macro-media and their relationship with electromagnetic waves