- 科学哲学 (ISSN:02893428)
- vol.37, no.2, pp.119-131, 2004-12-25 (Released:2009-05-29)
The main purpose of this essay is an analysis of the methodology in physical research using the semantic concept of scientific theories (SC). The structure of this paper is as follows. First, the antecedent analyses of scientific research by T. S. Kuhn, I. Lakatos and L. Laudan are surveyed. Secondly, I try to define what SC is. According to SC, theory is applied not to real world directly but to model. And next, the methodology of physical research is analyzed by using SC according to the following three steps: 1. improving the approximation between model and the real world, 2. introducing unknown objects (or interactions), 3. alternating basic theory. Finally, the development of physics is discussed. I insist that a criterion to judge which theory is better when theory is modified is the ability to solve empirical problems not conceptual.