5: Einstein’s Field Equations

Lecturer: Edmund Bertschinger

6: Tracing Einstein’s Development of the Special Relativity Theory - No video

Lecturer: Gerald Holton

Einstein’s SR Paper: First Three Pages of Einstein’s Original 1905 Paper on Special Relativity.

7: Supermassive Black Hole at the Center of Our Galaxy –Sagittarius A* - No video

Lecturer: Frederick K. Baganoff

Slides (PDF - 1.9 MB) Courtesy of Frederick Baganoff.