Publisher's Synopsis
One of the most fundamental problems facing theoretical physics is the synthesis of string theory, quantum gravity, and the conventional field theory. Recent developments in string theory make it possible to have a finite formulation of quantum gravity. Yet, it is still unclear how this edifice can be tested experimentally. From May 29 to June 4, 1989, many of the world's experts gathered to give lectures on this subject. The lectures emphasized the foundations of these fields, their interconnection, the progress made so far, and the current challenging problems.;The proceedings may serve both as a text for beginners and as a reference volume for active researchers.