Beschreibung:
Orreries-mechanical models of the Solar System and its motions-are found everywhere. They appear in paintings, on computers, across natural landscapes, and in museums all over the world. The more you look, the more you find, yet their significance is often overlooked aside other great astronomical inventions.
Chapter 1. Setting the Scene.- Chapter 2. Honest George, Chronometers and the Mystery of the Disappearing Proto-Orreries.- Chapter 3. Orrery: the Man and the Model.- Chapter 4. A Closer Look at Gear Calculations, Time Corrections, Escapements and Orbital Resonance.- Chapter 5. The Clockmaker's London.- Chapter 6. Modern and Orrery Times Compared.- Chapter 7. The Planetarium: A Journey into Space.- Chapter 8. Postface.- Appendix 1: A Select Timeline.- Appendix 2: Glossary.- Appendix 3: Bibliograph.- Index