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Battle Island Light : ウィキペディア英語版 | Battle Island Light
Battle Island Light is a lighthouse on the Canadian shore of Lake Superior. It is located on the westerly point of Battle Island, east-northeast from Lamb Island Light. It was built as a white light, visible for in clear weather. When built, it operated as a bright flash, four-second interval, bright flash, four-second interval, and then bright flash, 16-second interval, with a concurrent lower-strength light operating at 12-seconds constant/ 12 seconds eclipsed. Its fog horn (originally referred to as a "fog diaphone") blasted for 3½ seconds and was then silent for 26½ seconds. The lighthouse was rebuilt in 1915-16 in response to increased demand from local wood pulp carriers and commercial fishing boats. ==References==
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「Battle Island Light」の詳細全文を読む
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