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Screw-pile Lighthouse
A screw-pile lighthouse is a lighthouse which stands on piles that are screwed into sandy or muddy sea or river bottoms. The first screw-pile lighthouse to begin construction was built by the blind Irish engineer Alexander Mitchell. Construction began in 1838 at the mouth of the Thames and was known as the Maplin Sands lighthouse, and first lit in 1841. However, though its construction began later, the Wyre Light in Fleetwood, Lancashire, was the first to be lit (in 1840). In the United States, several screw-pile lighthouses were constructed in the Chesapeake Bay due to its estuarial soft bottom. North Carolina's sounds and river entrances also once had many screw-pile lights. The characteristic design is a -storey hexagonal wooden building with dormers and a cupola light room. History Non-screwpile (straightpile) tubular skeletal tower lighthouses were built, usually of cast-iron but also of wrought-iron piles, both onshore and offshore, typically on soft bottoms such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delaware Bay
Delaware Bay is the estuary outlet of the Delaware River on the northeast seaboard of the United States. It is approximately in area, the bay's freshwater mixes for many miles with the saltwater of the Atlantic Ocean. The bay is bordered inland by the states of Delaware and New Jersey, and the Delaware Capes, Cape Henlopen and Cape May, on the Atlantic. Delaware Bay is bordered by six counties: Sussex, Kent, and New Castle in Delaware, along with Cape May, Cumberland, and Salem in New Jersey. The Cape May–Lewes Ferry crosses Delaware Bay from Cape May, New Jersey, to Lewes, Delaware. The bay's ports are managed by the Delaware River and Bay Authority. The shores of the bay are largely composed of salt marshes and mudflats, with only small communities inhabiting the shore of the lower bay. Several of the rivers hold protected status for their salt marsh wetlands bordering the bay, which serves as a breeding ground for many aquatic species, including horseshoe crabs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louisiana
Louisiana , group=pronunciation (French: ''La Louisiane'') is a U.S. state, state in the Deep South and South Central United States, South Central regions of the United States. It is the List of U.S. states and territories by area, 20th-smallest by area and the List of U.S. states and territories by population, 25th most populous of the List of U.S. states, 50 U.S. states. Louisiana is bordered by the state of Texas to the west, Arkansas to the north, Mississippi to the east, and the Gulf of Mexico to the south. A large part of its eastern boundary is demarcated by the Mississippi River. Louisiana is the only U.S. state with political subdivisions termed List of parishes in Louisiana, parishes, which are equivalent to County (United States), counties, making it one of only two U.S. states not subdivided into counties (the other being Alaska and its List of boroughs and census areas in Alaska, boroughs). The state's capital is Baton Rouge, Louisiana, Baton Rouge, and its larges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohio
Ohio () is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Of the List of states and territories of the United States, fifty U.S. states, it is the List of U.S. states and territories by area, 34th-largest by area, and with a population of nearly 11.8 million, is the List of U.S. states and territories by population, seventh-most populous and List of U.S. states and territories by population density, tenth-most densely populated. The state's capital and List of cities in Ohio, largest city is Columbus, Ohio, Columbus, with the Columbus metropolitan area, Ohio, Columbus metro area, Cincinnati metropolitan area, Greater Cincinnati, and Greater Cleveland being the List of metropolitan statistical areas, largest metropolitan areas. Ohio is bordered by Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the west, and Michigan to the northwest. Ohio is historically known as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Erie
Lake Erie ( "eerie") is the fourth largest lake by surface area of the five Great Lakes in North America and the eleventh-largest globally. It is the southernmost, shallowest, and smallest by volume of the Great Lakes and therefore also has the shortest average water residence time. At its deepest point Lake Erie is deep. Situated on the International Boundary between Canada and the United States, Lake Erie's northern shore is the Canadian province of Ontario, specifically the Ontario Peninsula, with the U.S. states of Michigan, Ohio, Pennsylvania, and New York on its western, southern, and eastern shores. These jurisdictions divide the surface area of the lake with water boundaries. The largest city on the lake is Cleveland, anchoring the third largest U.S. metro area in the Great Lakes region, after Greater Chicago and Metro Detroit. Other major cities along the lake shore include Buffalo, New York; Erie, Pennsylvania; and Toledo, Ohio. Situated below Lake Huron, Eri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maumee Bay
Maumee Bay on Lake Erie is located in the U.S. state of Ohio, just east of the city of Toledo. The bay and the surrounding wetlands form most of the Maumee River basin, and in 1975 part of the area was incorporated into Maumee Bay State Park. The park is not huge, covering , but its wetlands feature some of the best bird watching in the United States. The Maumee Bay area is a popular vacation spot in the Midwest, featuring several resorts and a golf course. North Maumee Bay North Maumee Bay is a smaller part of Maumee Bay which combines the outflow of the Ottawa River The Ottawa River (french: Rivière des Outaouais, Algonquin: ''Kichi-Sìbì/Kitchissippi'') is a river in the Canadian provinces of Ontario and Quebec. It is named after the Algonquin word 'to trade', as it was the major trade route of Eastern ..., Halfway Creek, Rapideau Drain, Flat Creek, Little Lake Creek and Bay Creek. Historical Images of Maumee Bay File:Scene on Maumee Bay, Toledo, Ohio - DPLA - b18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Island Sound
Long Island Sound is a marine sound and tidal estuary of the Atlantic Ocean. It lies predominantly between the U.S. state of Connecticut to the north and Long Island in New York to the south. From west to east, the sound stretches from the East River in New York City, along the North Shore of Long Island, to Block Island Sound. A mix of freshwater from tributaries and seawater, saltwater from the ocean, Long Island Sound is at its widest point and varies in depth from . Shoreline Major Connecticut cities on the Sound include Stamford, Connecticut, Stamford, Norwalk, Connecticut, Norwalk, Bridgeport, Connecticut, Bridgeport, New Haven, Connecticut, New Haven, and New London, Connecticut, New London. Cities on the New York side of the Sound include Rye (city), New York, Rye, Glen Cove, New York, Glen Cove, New Rochelle, New York, New Rochelle, Larchmont and portions of Queens and the Bronx in New York City. Climate and geography The climate of Long Island Sound is warm t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Mexico
The Gulf of Mexico ( es, Golfo de México) is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States; on the southwest and south by the Mexican states of Tamaulipas, Veracruz, Tabasco, Campeche, Yucatan, and Quintana Roo; and on the southeast by Cuba. The Southern U.S. states of Texas, Louisiana, Mississippi, Alabama, and Florida, which border the Gulf on the north, are often referred to as the " Third Coast" of the United States (in addition to its Atlantic and Pacific coasts). The Gulf of Mexico took shape approximately 300 million years ago as a result of plate tectonics.Huerta, A.D., and D.L. Harry (2012) ''Wilson cycles, tectonic inheritance, and rifting of the North American Gulf of Mexico continental margin.'' Geosphere. 8(1):GES00725.1, first published on March 6, 2012, The Gulf of Mexico basin is roughly ov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-steel
Semi-steel casting is a lower cost method to produce a casting that is not quite as strong as a steel casting but less expensive to manufacture. It was used more commonly as a marketing term. The carbon and silicon percentages are reduced to the amount approximately consistent with those in steel. This is done using pig iron or gray iron casting scrap and reducing the amount of carbon through the addition of relatively pure steel or wrought iron scrap in a well heated cupola furnace. The percentage of carbon is typically between foundry cast iron and wrought iron. 6-pounder and 12-pounder Wiard rifles designed by Norman Wiard and used in the American Civil War (1861–1865) were made of semi-steel ( puddled wrought iron Wrought iron is an iron alloy with a very low carbon content (less than 0.08%) in contrast to that of cast iron (2.1% to 4%). It is a semi-fused mass of iron with fibrous slag inclusions (up to 2% by weight), which give it a wood-like "grain" ...).Olmstead, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida Keys
The Florida Keys are a coral island, coral cay archipelago located off the southern coast of Florida, forming the southernmost part of the continental United States. They begin at the southeastern coast of the Florida peninsula, about south of Miami, and extend in a gentle arc south-southwest and then westward to Key West, Florida, Key West, the westernmost of the inhabited islands, and on to the uninhabited Dry Tortugas. The islands lie along the Florida Straits, dividing the Atlantic Ocean to the east from the Gulf of Mexico to the northwest, and defining one edge of Florida Bay. At the nearest point, the southern part of Key West is just from Cuba. The Florida Keys are between about 24.3 and 25.5 degrees North latitude. More than 95 percent of the land area lies in Monroe County, Florida, Monroe County, but a small portion extends northeast into Miami-Dade County, Florida, Miami-Dade County, such as Totten Key. The total land area is . As of the United States Census, 2010, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seven Foot Knoll Light
The Seven Foot Knoll Light was built in 1855 and is the oldest screw-pile lighthouse in Maryland. It was located atop Seven Foot Knoll in the Chesapeake Bay until it was replaced by a modern navigational aid and relocated to Baltimore's Inner Harbor as a museum exhibit. Location It was initially installed on a rocky shoal called Seven Foot Knoll (at ), in the mouth of the Patapsco River. The northern tidal reach of this river is the Baltimore Harbor, where the now-decommissioned lighthouse has been placed as a museum exhibit. In 1997 the lighthouse was transferred to the Baltimore Maritime Museum (now the Historic Ships in Baltimore museum) and is permanently installed at the south end of Pier 5. Construction Constructed of rolled iron, the lighthouse consists of three main sections. The gallery deck was located above the average high tide waters. The house was the second section, sitting directly atop the gallery deck. This is where the keeper and his family would li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
