by Dong Bong Yang, Sang Zee Lee, Myung Hwan Oh
Introduction
How many fundamental physical constants are there in nature? And what are they? Despite continuous efforts to resolve such questions, we haven’t reached a clear and consistent answer to explain our physical world. The number of such fundamental physical constants may depend on the theoretical model of nature and the current perspectives of physics. Weinberg [S. Weinberg] defines constants to be fundamental if we can not calculate their values in terms of more fundamental constants, not just because calculation is too difficult, but because we do not know anything more fundamental than they already are.(continue…)