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Lighthouses In Rhode Island
This is a list of all lighthouses in the U.S. state of Rhode Island as identified by the United States Coast Guard. There are fifteen active lights in the state as well as two skeleton towers erected to replace earlier staffed lighthouses. The first lighthouse in the state was erected in 1749 and the last in 1962 (ignoring automated towers erected later); the oldest surviving structure is the much-modified Poplar Point Light, although the tower now standing at Prudence Island Light was first erected at Goat Island (Rhode Island), Goat Island in 1824. The tallest extant tower is that at Beavertail Light, though the focal plane of the Block Island Southeast Light is much higher on account of the bluffs upon which it sits. If not otherwise noted, focal height and coordinates are taken from the United States Coast Guard ''Light List'', while location and dates of activation, automation, and deactivation are taken from the United States Coast Guard historical information site for light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouse
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lens (optics), lenses and to serve as a beacon for navigational aid for maritime pilots at sea or on inland waterways. Lighthouses mark dangerous coastlines, hazardous shoals, reefs, rocks, and safe entries to harbors; they also assist in aerial navigation. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and the advent of much cheaper, more sophisticated, and more effective electronic navigational systems. History Ancient lighthouses Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since elevating the fire would improve visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs and promontory, prom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
