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Sevona (shipwreck)
''Sevona'' was a steel-hulled lake freighter that sank in Lake Superior off the coast of Sand Island in Bayfield County, Wisconsin, United States. The wreckage site was added to the National Register of Historic Places in 1993. History ''Sevona'', originally named ''Emily P. Weed'', was launched in 1890. She was renamed ''Sevona'' in 1897. On September 1, 1905, ''Sevona'' left Allouez, Wisconsin, bound for Erie, Pennsylvania, with a cargo of iron ore and a crew of twenty men and four women. Later that night, an unexpected storm hit the area. By midnight, the wind had reached gale-force strength. At around 6:00 a.m. on September 2, ''Sevona'' ran aground on a shoal and broke in half. No other vessel was in the area to aid ''Sevona'', so crew members on the stern section of the ship boarded the lifeboats. Crew members on the bow section, separated from the lifeboats, were forced to construct a raft out of hatch covers and doors. All crew members on the makeshift raft later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flag Of The United States
The national flag of the United States, United States of America, often referred to as the ''American flag'' or the ''U.S. flag'', consists of thirteen equal horizontal stripes of red (top and bottom) alternating with white, with a blue rectangle in the Glossary of vexillology#Flag elements, canton (referred to specifically as the "union") bearing fifty small, white, five-pointed stars arranged in nine offset horizontal rows, where rows of six stars (top and bottom) alternate with rows of five stars. The 50 stars on the flag represent the 50 U.S. states, and the 13 stripes represent the Thirteen Colonies, thirteen British colonies that declared independence from Kingdom of Great Britain, Great Britain, and became the first states in the U.S. Nicknames for the flag include the ''Stars and Stripes'', ''Old Glory'', and the ''Star-Spangled Banner''. History The current design of the U.S. flag is its 27th; the design of the flag has been modified officially 26 times since 1777. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gale
A gale is a strong wind; the word is typically used as a descriptor in nautical contexts. The U.S. National Weather Service defines a gale as sustained surface winds moving at a speed of between 34 and 47 knots (, or ).National Weather Service Glossary s.v "gale" Forecasters typically issue s when winds of this strength are expected. In the , a gale warning is specifically a maritime warning; the land-based equivalent in N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apostle Islands National Lakeshore
The Apostle Islands National Lakeshore is a U.S. national lakeshore consisting of 21 islands (Apostle Islands) and shoreline encompassing on the northern tip of Wisconsin on the shore of Lake Superior. It is known for its collection of historic lighthouses, sandstone sea caves, a few old-growth remnant forests, and natural animal habitats. It is featured on the America the Beautiful Quarters series. The Apostle Islands National Lakeshore is located in Bayfield, Wisconsin, on Lake Superior, the "largest, cleanest, and coldest of the Great Lakes." The lakeshore comprises beaches, cliffs, water, and 21 islands. Madeline Island, with commercial establishments of the town of La Pointe, is the only one of the Apostle Islands not included in the national lakeshore, although a portion of the island is protected as Big Bay State Park. Ecologically, the islands contain some old growth, but primarily secondary Northern hardwood forest. There are elements of the oak, hickory, and hemlock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wisconsin Historical Society
The Wisconsin Historical Society (officially the State Historical Society of Wisconsin) is simultaneously a state agency and a private membership organization whose purpose is to maintain, promote and spread knowledge relating to the history of North America, with an emphasis on the state of Wisconsin and the trans-Allegheny West. Founded in 1846 and chartered in 1853, it is the oldest historical society in the United States to receive continuous public funding. The society's headquarters are located in Madison, Wisconsin, on the campus of the University of Wisconsin–Madison. __TOC__ Organization The Wisconsin Historical Society is organized into four divisions: the Division of Library-Archives, the Division of Museums and Historic Sites, the Division of Historic Preservation-Public History, and the Division of Administrative Services. Division of Library, Archives, and Museum Collections The Division of Library-Archives collects and maintains books and documents about t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scuba Diving
Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface air supply. The name "scuba", an acronym for "Self-Contained Underwater Breathing Apparatus", was coined by Christian J. Lambertsen in a patent submitted in 1952. Scuba divers carry their own source of breathing gas, usually compressed air, affording them greater independence and movement than surface-supplied divers, and more time underwater than free divers. Although the use of compressed air is common, a gas blend with a higher oxygen content, known as enriched air or nitrox, has become popular due to the reduced nitrogen intake during long and/or repetitive dives. Also, breathing gas diluted with helium may be used to reduce the likelihood and effects of nitrogen narcosis during deeper dives. Open circuit scuba systems discharge the breathing gas into the environment as it is exhaled, and consist of one or more diving cylinders containing breat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamite
Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay), and Stabilizer (chemistry), stabilizers. It was invented by the Swedish people, Swedish chemist and engineer Alfred Nobel in Geesthacht, Northern Germany, and patented in 1867. It rapidly gained wide-scale use as a more robust alternative to gun powder, black powder. History Dynamite was invented by Swedish chemist Alfred Nobel in the 1860s and was the first safely manageable explosive stronger than black powder. Alfred Nobel's father, Immanuel Nobel, was an industrialist, engineer, and inventor. He built bridges and buildings in Stockholm and founded Sweden's first rubber factory. His construction work inspired him to research new methods of blasting rock that were more effective than black powder. After some bad business deals in Sweden, in 1838 Immanuel moved Nobel family, his family to Saint Petersburg, where Alfred and his brothers were educated privately under Swedish and Russi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Corps Of Engineers
, colors = , anniversaries = 16 June (Organization Day) , battles = , battles_label = Wars , website = , commander1 = LTG Scott A. Spellmon , commander1_label = Chief of Engineers and Commanding General of the U.S. Army Corps of Engineers , commander2 = MGbr>Richard J. Heitkamp, commander2_label = Deputy Chief of Engineers and Deputy Commanding General , commander3 = MGKimberly M. Colloton, commander3_label = Deputy Commanding General for Military and International Operations , commander4 = MGbr>William H. Graham, commander4_label = Deputy Commanding General for Civil and Emergency Operations , commander5 = COLbr>James J. Handura, commander5_label = Chief of Staff for the U.S. Army Corps of Engi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pretoria (ship)
''Pretoria'', an United States, American schooner barge, was one of the largest wooden ships ever constructed. She was 103 meters (338 ft) long, had a beam of 13.4 meters (44 ft), and 7 meters (23 ft) in depth. She was built by James Davidson in West Bay City, Michigan, West Bay City, Michigan, for use on the Great Lakes. To strengthen her wooden frame and hull, ''Pretoria'' was constructed using steel keelson plates, steel chords, and steel arches. She also was strapped diagonally with steel. She needed a donkey engine to run a pump to keep her interior dry. The Saginaw, Michigan newspaper "The Courier-Herald" described "Pretoria"'s Ship naming and launching, launch on July 26, 1900 in the following way: On 1 September 1905, ''Pretoria'' took on cargo at a pier in Superior, Wisconsin, Superior, Wisconsin. Another notable ship, the lake freighter ''Sevona (shipwreck), Sevona'', took on cargo at the same pier shortly after ''Pretoria''. Both ships sank the ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barge
Barge nowadays generally refers to a flat-bottomed inland waterway vessel which does not have its own means of mechanical propulsion. The first modern barges were pulled by tugs, but nowadays most are pushed by pusher boats, or other vessels. The term barge has a rich history, and therefore there are many other types of barges. History of the barge Etymology "Barge" is attested from 1300, from Old French ''barge'', from Vulgar Latin ''barga''. The word originally could refer to any small boat; the modern meaning arose around 1480. ''Bark'' "small ship" is attested from 1420, from Old French ''barque'', from Vulgar Latin ''barca'' (400 AD). The more precise meaning of Barque as "three-masted sailing vessel" arose in the 17th century, and often takes the French spelling for disambiguation. Both are probably derived from the Latin ''barica'', from Greek ''baris'' "Egyptian boat", from Coptic ''bari'' "small boat", hieroglyphic Egyptian D58-G29-M17-M17-D21-P1 and similar ''b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schooner
A schooner () is a type of sailing vessel defined by its rig: fore-and-aft rigged on all of two or more masts and, in the case of a two-masted schooner, the foremast generally being shorter than the mainmast. A common variant, the topsail schooner also has a square topsail on the foremast, to which may be added a topgallant. Differing definitions leave uncertain whether the addition of a fore course would make such a vessel a brigantine. Many schooners are gaff-rigged, but other examples include Bermuda rig and the staysail schooner. The origins of schooner rigged vessels is obscure, but there is good evidence of them from the early 17th century in paintings by Dutch marine artists. The name "schooner" first appeared in eastern North America in the early 1700s. The name may be related to a Scots word meaning to skip over water, or to skip stones. The schooner rig was used in vessels with a wide range of purposes. On a fast hull, good ability to windward was useful for priv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raft
A raft is any flat structure for support or transportation over water. It is usually of basic design, characterized by the absence of a hull. Rafts are usually kept afloat by using any combination of buoyant materials such as wood, sealed barrels, or inflated air chambers (such as pontoons), and are typically not propelled by an engine. Rafts are an ancient mode of transport; naturally-occurring rafts such as entwined vegetation and pieces of wood have been used to traverse water since the dawn of humanity. Human-made rafts Traditional or primitive rafts were constructed of wood or reeds. Modern rafts may also use pontoons, drums, or extruded polystyrene Polystyrene (PS) is a synthetic polymer made from monomers of the aromatic hydrocarbon styrene. Polystyrene can be solid or foamed. General-purpose polystyrene is clear, hard, and brittle. It is an inexpensive resin per unit weight. It is a ... blocks. Inflatable rafts up to the 20th century used flotation chambers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bow (ship)
The bow () is the forward part of the hull of a ship or boat, the point that is usually most forward when the vessel is underway. The aft end of the boat is the stern. Prow may be used as a synonym for bow or it may mean the forward-most part of the bow above the waterline. Function A ship's bow should be designed to enable the hull to pass efficiently through the water. Bow shapes vary according to the speed of the boat, the seas or waterways being navigated, and the vessel's function. Where sea conditions are likely to promote pitching, it is useful if the bow provides reserve buoyancy; a flared bow (a raked stem with flared topsides) is ideal to reduce the amount of water shipped over the bow. Ideally, the bow should reduce the resistance and should be tall enough to prevent water from regularly washing over the top of it. Large commercial barges on inland waterways rarely meet big waves and may have remarkably little freeboard at the bow, whereas fast military ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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