Volume 43, 2008
Philosophy of Natural Sciences
Nature Science and “Three Changes”
Once Zheng Xuan, a man of Han dynasty, made notations of “Yiwei”, he said: “The word ‘change’ contains three meanings: the first is simplifying, the second is transformation, and the third is unchanging ”, thus called to “three changes”. The wording “three changes” is able to be the different explanations of “Zhouyi”, and also can be understand to three meanings of the word “change” in “Zhouyi”. Everywhere in the nature, and in nature science, there are incalculable examples about “three changes”. The process of “simplifying”, it is that nature science obtains the principles by means of summing up the multitudinous complex spontaneous phenomena. There is “the fundamental of thinking economy”, and “Aucum razor” in the west, then they emphasize to wipe off the miscellaneous and keep up the simple, and to eliminate the false and retain the true. Therefore, it can say where there is no “simplifying”, there is no nature science. “Transformation” means movement and change. This is the essentiality of the nature. From the biggest such as the universe to the smallest such as cells, all these are the outcomes of evolution, and are changing continueously. Physics researching from static objects to dynamic objects, and mathematics calculation from the constant to the variable, all of these studies are closing up to the essentiality of the natural “transformation” nearer and nearer. If there is no “transformation”, nature science world stop, and the nature world be deathly stillness. “Unchanging” means that the static state exists in the dynamic state, and the constant exists in the variation. The various theorems and laws, such as the theorem of constant of light velocity and the law of conservation of energy, are the summation and accumulation of the regularities of which the relative stabilization is kept in changeable movement. Various kinds of equation are all linked by equal-sign, and based on the condition recognizing which the two sides is equal constantly. Therefore the calculation of the relations between matter characteristics can be set up. Otherwise, not only the nature world be disorder and unsystematic, but also the science world have no laws to go by.