Нашли опечатку? Выделите ее мышкой и нажмите Ctrl+Enter
Название: The Electromagnetic Field
Авторы: Mason M., Weaver W.
In a detailed theory of a group of physical phenomena an analogy is exhibited between observed facts and the logical consequences of a self-consistent mathematical structure. The analogy constitutes the theory. A theory is valued for the diversity of the phenomena which it describes and correlates, and for the stimulus it furnishes for the discovery of new experimental facts. The mathematical structure should be of such nature that the analytical manipulations required in the derivation of the theorems can be readily performed.