A distinguished American physicist and teacher delivers a landmark study thatdevelops three essential scientific themes on each subject.

This high-level study discusses Newtonian principles and 19th-century views on electrodynamics and the aether. Additional topics include Einstein's electrodynamics of moving bodies, Minkowski spacetime, gravitational geometry, time and causality, and other subjects. Highlights include a rich exposition of the elements of the special and general theories of relativity.

The book opens with a description of the smooth transition from Newtonian to Einsteinian behaviour from electrons as their energy is progressively increased, ...

Onians' remarkable work of scholarship sought to deal with the very roots of European civilization and thought: the fundamental beliefs about life, mind, body, soul, and human destiny that are embodied in the myths and legends of the ancients. The volume is remains a fascinating collection of ideas and explanations of cultures as diverse as the Greeks and the Norse, the Celts and the Jews, and the Chinese and the Romans.

Se explican dos ideas capitales de la epistemología de Bachelard y su relación mutua: la ciencia es fenomenotécnica, la ciencia inventa sus conceptos La producción de fenómenos con arreglo a esos conceptos certifica su idoneidad.We explain two main ideas of Bachelard’s philosophy of science and their mutual relation. Science produces phenomena and creates its own concepts. Production of phenomena according to these concepts certifies their aptness.