Lighthouses and Lightships
- Downloads
- Under 100
- Pages
- 245
About this book
Lighthouses and Lightships offers a descriptive and historical account of lighthouse construction and organization, with illustrations drawn from photographs and other sources. The explanation of revolving lights describes a three- or four-sided frame with large reflectors grouped on each side and their axes parallel.
The intermittent light suddenly appears, continues steadily for a short time and is suddenly eclipsed for half a minute. The construction account describes a rough-stone jetty about 170 feet long in one haven, built to facilitate frequent embarkations and disembarkations. The account locates the harbour of La Corderie exactly opposite the Héaux. The account records granite arriving from the Ile-Grande, about ten leagues westward, and lime from the basin of the Loire.
About the author
More from this genre
See all- A The American PrinterThe American Printer
- J The Jacquard Machine Analyzed and ExplainedThe Jacquard Machine Analyzed and Explained
- L Laboratory Manual of Glass-BlowingLaboratory Manual of Glass-Blowing
- P Practical Pointers for PatenteesPractical Pointers for Patentees
- A Aërial NavigationAërial Navigation
- A The Age of InventionThe Age of Invention
Discussion
No comments yet. Share a thought, a question or a favourite passage.
Copyright concern? Read our DMCA policy
Read or download
Public domain book This work is in the public domain and free of copyright. Anyone may read, download and share it.
- PDF 5.5 MB
- EPUB 4.2 MB
Downloads start right away. How to open EPUB on your phone
Book facts
- Author
- W. H. Davenport Adams
- Pages
- 245
- Language
- English
- Genre
- Engineering
- Formats
- PDF, EPUB, Read online