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Sylvanus Sawyer
Sylvanus Sawyer (15 April 1822 in Templeton, Massachusetts – 13 October 1895, in Fitchburg, Massachusetts) was a United States inventor. Biography John Sawyer, his father, was a farmer, mill owner and lumberman. His mother was Lucy Balcolm Sawyer. His siblings included Addison M., Joseph B., Catharine H., Mary W., and Aurelia M. Sawyer. Joseph and Addison were Sylvanus' business partners, and Addison was Sylvanus' co-inventor on at least one artillery ammunition patent, as well as receiving at least two patents on his own. From childhood Sylvanus showed great mechanical ingenuity; while he was a lad, he invented a reed organ. Due to an injury at age 12, from then until age 21 feeble health unfitted him for farm labor, and he occupied himself largely with carpenter's and smith's tools. In 1839 he went to Augusta, Maine, with a view of working with his brother-in-law, a gunsmith, and, though his health soon forced him to return, he learned to repair firearms and do much similar w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Templeton, Massachusetts
Templeton is a town in Worcester County, Massachusetts, United States. The population was 8,149 at the 2020 census. The town comprises four main villages: Templeton Center, East Templeton, Baldwinville, and Otter River. Geography According to the United States Census Bureau, the town has a total area of , of which is land and , or 1.17%, is water. Templeton is bordered by Royalston and Winchendon to the north, Gardner to the east, Hubbardston to the southeast, and Phillipston to the west. Demographics As of the census of 2000, there were 6,799 people, 2,411 households, and 1,808 families residing in the town. The population density was 212.2 people per square mile (81.9/km2). There were 2,597 housing units at an average density of 81.1 per square mile (31.3/km2). The racial makeup of the town was 98.15% White, 0.35% African American, 0.22% Native American, 0.28% Asian, 0.43% from other races, and 0.57% from two or more races. Hispanic or Latino of any race were 1.44 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Monroe
Fort Monroe, managed by partnership between the Fort Monroe Authority for the Commonwealth of Virginia, the National Park Service as the Fort Monroe National Monument, and the City of Hampton, is a former military installation in Hampton, Virginia, at Old Point Comfort, the southern tip of the Virginia Peninsula, United States. Along with Fort Wool, Fort Monroe originally guarded the navigation channel between the Chesapeake Bay and Hampton Roads—the natural roadstead at the confluence of the Elizabeth, the Nansemond and the James rivers. Union General George B. McClellan landed his forces at the fort during Peninsula campaign of 1862 during the American Civil War. Until disarmament in 1946, the areas protected by the fort were the entire Chesapeake Bay and Potomac River regions, including the water approaches to the cities of Washington, D.C. and Baltimore, Maryland, along with important shipyards and naval bases in the Hampton Roads area. Surrounded by a moat, the six-side ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southern subregion of a single continent called America. South America is bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie to the northwest. The continent generally includes twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela; two dependent territories: the Falkland Islands and South Georgia and the South Sandwich Islands; and one internal territory: French Guiana. In addition, the ABC islands of the Kingdom of the Netherlands, Ascension Island (dependency of Saint Helena, Ascension and Tristan da Cunha, a British Overseas Territory), Bouvet Island ( dependency of Norway), Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuze
In military munitions, a fuze (sometimes fuse) is the part of the device that initiates function. In some applications, such as torpedoes, a fuze may be identified by function as the exploder. The relative complexity of even the earliest fuze designs can be seen in cutaway diagrams. A fuze is a device that detonates a munition's explosive material under specified conditions. In addition, a fuze will have safety and arming mechanisms that protect users from premature or accidental detonation. For example, an artillery fuze's battery is activated by the high acceleration of cannon launch, and the fuze must be spinning rapidly before it will function. "Complete bore safety" can be achieved with mechanical shutters that isolate the detonator from the main charge until the shell is fired. A fuze may contain only the electronic or mechanical elements necessary to signal or actuate the detonator, but some fuzes contain a small amount of primary explosive to initiate the detonation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel Casting
Steel casting is a specialized form of casting involving various types of steel cast to either final/net or near-net shape. Steel castings are used when iron castings cannot deliver enough strength or shock resistance.Oberg, p. 1332 Examples of items that are steel castings include: hydroelectric turbine wheels, forging presses, gears, railroad truck frames, valve bodies, pump casings, mining machinery, marine equipment, turbocharger turbines and engine cylinder blocks. Steel castings are categorized into two general groups: carbon steels and alloy steels. Steel castability Steel is more difficult to cast than iron. It has a higher melting point and greater shrinkage rate, which requires consideration during mold design. Risers should be given more capacity to draw from as the metal cools and shrinks. Attention should be paid to the thickness of mold cavities, as thinner areas will cool quicker than thicker areas, which can create internal stress points that can lead to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington Navy Yard
The Washington Navy Yard (WNY) is the former shipyard and ordnance plant of the United States Navy in Southeast Washington, D.C. It is the oldest shore establishment of the U.S. Navy. The Yard currently serves as a ceremonial and administrative center for the U.S. Navy, home to the Chief of Naval Operations, and is headquarters for the Naval Sea Systems Command, Naval Reactors, Naval Facilities Engineering Systems Command, Naval History and Heritage Command, the National Museum of the United States Navy, the U.S. Navy Judge Advocate General's Corps, Marine Corps Institute, the United States Navy Band, and other more classified facilities. In 1998, the yard was listed as a Superfund site due to environmental contamination. History The history of the yard can be divided into its military history and cultural and scientific history. Military The land was purchased under an Act of Congress on July 23, 1799. The Washington Navy Yard was established on October 2, 1799, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Elizabeth City
The Battle of Elizabeth City of the American Civil War was fought in the immediate aftermath of the Battle of Roanoke Island. It took place on 10 February 1862, on the Pasquotank River near Elizabeth City, North Carolina. The participants were vessels of the U.S. Navy's North Atlantic Blockading Squadron, opposed by vessels of the Confederate Navy's Mosquito Fleet; the latter were supported by a shore-based battery of four guns at Cobb's Point (now called Cobb Point), near the southeastern border of the town. The battle was a part of the campaign in North Carolina that was led by Major General Ambrose E. Burnside and known as the Burnside Expedition. The result was a Union victory, with Elizabeth City and its nearby waters in their possession, and the Confederate fleet captured, sunk, or dispersed. Background At the outset of the American Civil War, the Union sought to implement its Anaconda Plan to isolate and defeat the Confederacy. The crucial first step was to blockade t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CSS Fanny
CSS ''Fanny'' was a small propeller-driven steam tug used by the Confederate States Navy to defend the sounds of northeastern North Carolina in the American Civil War. Originally armed as a gunboat and operated by the Union, she was captured in October 1861 by the Confederate Navy, and later lost at the Battle of Elizabeth City in February 1862. Due to being used as an observation balloon platform, ''Fanny'' is sometimes credited with being the first self-propelled aircraft carrier.US Centennial of Flight Union service The ''Fanny'' was originally operated by theUnited States Army Quartermaster Corps
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Sewell's Point
Sewells Point is a peninsula of land in the independent city of Norfolk, Virginia in the United States, located at the mouth of the salt-water port of Hampton Roads. Sewells Point is bordered by water on three sides, with Willoughby Bay to the north, Hampton Roads to the west, and the Lafayette River to the south. It is the site of Naval Station Norfolk. Origins and variations of name The area was originally named in the 17th century after Henry Sewell, an Englishman who arrived in Virginia sometime prior to 1632. Later, variations in spelling were used, such as Seawells Point, and Sewall Point. The common spelling today is Sewells Point. First church in Norfolk About 1637, the Elizabeth River Parish was created. The first Anglican church of Elizabeth River Parish was erected between 1638 and 1640 "at Mr. Seawell's Pointe," with assistance of Thomas Willoughby. The first recorded minister was the Reverend John Wilson. The second church to be located in the area now kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Confederate States Army
The Confederate States Army, also called the Confederate Army or the Southern Army, was the military land force of the Confederate States of America (commonly referred to as the Confederacy) during the American Civil War (1861–1865), fighting against the United States forces to win the independence of the Southern states and uphold the institution of slavery. On February 28, 1861, the Provisional Confederate Congress established a provisional volunteer army and gave control over military operations and authority for mustering state forces and volunteers to the newly chosen Confederate president, Jefferson Davis. Davis was a graduate of the U.S. Military Academy, and colonel of a volunteer regiment during the Mexican–American War. He had also been a United States senator from Mississippi and U.S. Secretary of War under President Franklin Pierce. On March 1, 1861, on behalf of the Confederate government, Davis assumed control of the military situation at Charleston, South C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hampton Roads
Hampton Roads is the name of both a body of water in the United States that serves as a wide channel for the James River, James, Nansemond River, Nansemond and Elizabeth River (Virginia), Elizabeth rivers between Old Point Comfort and Sewell's Point where the Chesapeake Bay flows into the Atlantic Ocean, and the surrounding metropolitan region located in the southeastern Virginia and northeastern North Carolina portions of the Tidewater (region), Tidewater Region. Comprising the Virginia Beach–Norfolk–Newport News, VA–NC, metropolitan area and an extended combined statistical area that includes the Elizabeth City, North Carolina micropolitan area, Elizabeth City, North Carolina, micropolitan statistical area and Dare County, North Carolina, Kill Devil Hills, North Carolina, micropolitan statistical area, Hampton Roads is known for its large military presence, ice-free harbor, shipyards, coal piers, and miles of waterfront property and beaches, all of which contribute to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Wool
Fort Wool is a decommissioned island fortification located in the mouth of Hampton Roads, adjacent to the Hampton Roads Bridge-Tunnel (HRBT). Now officially known as Rip Raps Island, the fort has an elevation of 7 feet and sits near Old Point Comfort, Old Point Comfort Light, Willoughby Beach and Willoughby Spit, approximately one mile south of Fort Monroe. Originally named Castle Calhoun or Fort Calhoun after Secretary of War John C. Calhoun, the fort was renamed after Maj. Gen. John Ellis Wool on 18 March 1862 during the American Civil War. It is noted on current nautical maps as "Rip Raps", and was sometimes referred to by that name during the Civil War. Fort Wool was one of more than forty forts started after the War of 1812, when British forces sailed the Chesapeake Bay to burn the Capital. This program was later known as the third system of U.S. fortifications. Designed by Brigadier General of Engineers Simon Bernard, an expatriate Frenchman who had served as a gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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