The site contains three lectures of Professor Hans Bethe. The lecture topics concern the development of quantum theory; relations between the exciting theoretical/experimental breakthrough; and how quantum theory forced...

This online book examines the evolution of the principle of relativity in its classical, special, and general incarnations. It includes both technical and historical perspectives of the topic. Conceptual and mathematical...

The University of California Los Angeles Division of Astronomy and Astrophysics professor Edward Wright maintains the Relativity Tutorial Web site. The site explains the history and general concepts behind relativity....

Developed by Professor Thomas A. Moore of Pomona College, the Six Ideas That Shaped Physics textbook was designed to help students gain a contemporary perspective on the discipline, along with giving them the ability to...

This site was created by two German physicists (Ute Kraus and Corvin Zahn) and it offers a "visual and intuitive approach to the theory of relativity." The site does not offer the basics dealing with the theory of...