| 翻訳と辞書 |
| caisson lighthouse ： ウィキペディア英語版 |
caisson lighthouse
A caisson lighthouse is a lighthouse whose superstructure rests on a concrete or metal caisson.
Caisson lighthouses were developed in the late nineteenth century as a cheaper, more efficient alternative to screwpile lighthouses; they could better withstand harsh weather, and were not as fragile. Generally speaking, the house was made of cast iron, although some brick examples are known.
Most caisson lighthouses were built at fairly exposed stations, but a few exist closer to shore.
Wolf Trap Light and Baltimore Light, both in the Chesapeake Bay, are examples of caisson lighthouses.
==See also==
*Sparkplug lighthouse
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「caisson lighthouse」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|