Back to the article index
- TITLE PAGE
- PREFACE
- 1. HISTORICAL BACKGROUND
- 1.1. Introduction: the Energy Problem
- 1.2. The Discovery
- 1.3. The Nature of Redshift
- 1.3.1. Doppler Shift
- 1.3.2. Gravitational Redshift
- 1.3.3. Cosmological Redshift
- 1.4. Physical Characteristics: Quasars
- 1.5. Physical Characteristics: Active Galactic Nuclei
- Chapter Contents
- PREFACE