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Thomas J. Rodman
Thomas Jackson Rodman (July 31, 1816 – June 7, 1871) was an American artillerist, inventor, ordnance specialist, and career United States Army officer.Dupuy, p. 636. He served as a Union Army officer during the American Civil War, in which he was noted for his many improvements and innovations concerning the artillery used by the Union forces. He is especially remembered for developing the Rodman gun, which in various sizes saw extensive use in coastal defenses, and was called the "strongest cast iron cannon ever made." General Rodman also discovered the use of shaped gunpowder grains, in which properly compressing and shaping the gunpowder into pre-designed grain shapes allowed the control of gas production by the burning gunpowder. This resulted in increased muzzle velocities with lower maximum pressures when compared to performance with conventional ball powder. The Rodman seven perforation grain was named after Rodman, and similar propellant grain shapes are still in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salem, Indiana
Salem is a city in and the county seat of Washington Township, Washington County, in the U.S. state of Indiana. The population was 6,319 at the 2010 census. History Salem was laid out and platted in 1814. It was named for Salem, North Carolina, the hometown of one of the city founders. The Salem post office has been in operation since 1816. Morgan's Raid In June 1863, the Confederate cavalry under John Hunt Morgan had departed Tennessee on what would later become known as Morgan's Raid. Traveling through Tennessee and into Kentucky, Morgan eventually crossed into Indiana; he reached Salem on July 10, 1863, coming north from Corydon. Upon entering Salem at approximately 9 a.m., Morgan immediately took possession of the town and placed guards over the stores and streets. The cavalrymen burned the large, brick railroad depot, along with all the train cars on the track and the railroad bridges on each side of the town. Morgan demanded taxes from the two flour mills that belonge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery
Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower. Originally, the word "artillery" referred to any group of soldiers primarily armed with some form of manufactured weapon or armor. Since the introduction of gunpowder and cannon, "artillery" has largely meant cannons, and in contemporary usage, usually refers to shell-firing guns, howitzers, and mortars (collectively called ''barrel artillery'', ''cannon artillery'', ''gun artillery'', or - a layman t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodman Vs Ball 06
Rodman may refer to: Places in the United States * Rodman, Iowa * Rodman, New York, a town ** Rodman (CDP), New York, a hamlet in the town * Rodman Mountains, California * Rodman Reservoir, Florida People Surname * Alex Rodman (born 1987), English footballer * Blair Rodman, professional poker player * David Rodman (born 1983), Slovenian ice hockey player * Dennis Rodman (born 1961), former NBA basketball player * DJ Rodman (born 2001), American basketball player and son of Dennis Rodman * Hugh Rodman (1859–1940), American admiral * Howard A. Rodman (19??), American screenwriter, author and professor * Isaac P. Rodman, American Civil War Union brigadier general * John Rodman (1775–1847), New York County District Attorney * Judy Rodman, American country music singer * Marcel Rodman (born 1981), Slovenian ice hockey player * Peter W. Rodman (1943-2008), Brookings Institution Senior Fellow * Peter S. Rodman (born 1945), primatologist at UC Davis * Samuel Rodman (1898-?), Sovi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patent
A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an enabling disclosure of the invention."A patent is not the grant of a right to make or use or sell. It does not, directly or indirectly, imply any such right. It grants only the right to exclude others. The supposition that a right to make is created by the patent grant is obviously inconsistent with the established distinctions between generic and specific patents, and with the well-known fact that a very considerable portion of the patents granted are in a field covered by a former relatively generic or basic patent, are tributary to such earlier patent, and cannot be practiced unless by license thereunder." – ''Herman v. Youngstown Car Mfg. Co.'', 191 F. 579, 584–85, 112 CCA 185 (6th Cir. 1911) In most countries, patent rights fall under private law and the patent holder mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gauge (bore Diameter)
The gauge (or commonly bore in British English) of a firearm is a unit of measurement used to express the inner diameter (bore diameter) of the barrel. Gauge is determined from the weight of a solid sphere of lead that will fit the bore of the firearm and is expressed as the multiplicative inverse of the sphere's weight as a fraction of a pound, e.g., a one-twelfth pound lead ball fits a 12-gauge bore. Thus there are twelve 12-gauge balls per pound, etc. The term is related to the measurement of cannon, which were also measured by the weight of their iron round shot; an 8-pounder would fire an 8 lb (3.6 kg) ball. Gauge is commonly used today in reference to shotguns, though historically it was also used in large double rifles, which were made in sizes up to 2 bore during their heyday in the 1880s, being originally loaded with black powder cartridges. These very large rifles, called "elephant guns", were intended for use primarily in Africa and Asia for hunting lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gun Barrel
A gun barrel is a crucial part of gun-type weapons such as small firearms, artillery pieces, and air guns. It is the straight shooting tube, usually made of rigid high-strength metal, through which a contained rapid expansion of high-pressure gas(es) is used to propel a projectile out of the front end ( muzzle) at a high velocity. The hollow interior of the barrel is called the bore, and the diameter of the bore is called its caliber, usually measured in inches or millimetres. The first firearms were made at a time when metallurgy was not advanced enough to cast tubes capable of withstanding the explosive forces of early cannons, so the pipe (often built from staves of metal) needed to be braced periodically along its length for structural reinforcement, producing an appearance somewhat reminiscent of storage barrels being stacked together, hence the English name.''A History of Warfare'' - Keegan, John, Vintage 1993. History Gun barrels are usually metal. However, the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cannon
A cannon is a large- caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during the late 19th century. Cannons vary in gauge, effective range, mobility, rate of fire, angle of fire and firepower; different forms of cannon combine and balance these attributes in varying degrees, depending on their intended use on the battlefield. A cannon is a type of heavy artillery weapon. The word ''cannon'' is derived from several languages, in which the original definition can usually be translated as ''tube'', ''cane'', or ''reed''. In the modern era, the term ''cannon'' has fallen into decline, replaced by ''guns'' or ''artillery'', if not a more specific term such as howitzer or mortar, except for high-caliber automatic weapons firing bigger rounds than machine guns, called autocannons. The earliest known depict ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cast Iron
Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impurities which allow cracks to pass straight through, grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile cast iron has spherical graphite "nodules" which stop the crack from further progressing. Carbon (C), ranging from 1.8 to 4 wt%, and silicon (Si), 1–3 wt%, are the main alloying elements of cast iron. Iron alloys with lower carbon content are known as steel. Cast iron tends to be brittle, except for malleable cast irons. With its relatively low melting point, good fluidity, castability, excellent machinability, resistance to deformation and wear resistance, cast irons have become an engineering material with a wide range of applications and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colonel (United States)
The colonel () in the United States Army, Marine Corps, Air Force and Space Force, is the most senior field-grade military officer rank, immediately above the rank of lieutenant colonel and just below the rank of brigadier general. Colonel is equivalent to the naval rank of captain in the other uniformed services. By law, an officer previously required at least 22 years of cumulative service and a minimum of three years as a lieutenant colonel before being promoted to colonel. With the signing of the National Defense Authorization Act of 2019 (NDAA 2019), military services now have the authorization to directly commission new officers up to the rank of colonel. The pay grade for colonel is O-6. When worn alone, the insignia of rank seen at right is worn centered on headgear and fatigue uniforms. When worn in pairs, the insignia is worn on the officer's left side while a mirror-image reverse version is worn on the right side, such that both of the eagles' heads face forwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
20th Infantry Regiment (United States)
The 20th Infantry Regiment ("Sykes' Regulars") is a United States Army infantry regiment. Currently only the 5th Battalion of the 20th Infantry still exists. Stationed at Joint Base Lewis-McChord and part of the 1st Stryker Brigade Combat Team, 2nd Infantry Division, 5-20 Infantry was one of the original battalions selected to take part in the testing and fielding of the Army's new Stryker vehicle. History Creation The regiment was organized on 6 June 1862 at Fort Independence (Massachusetts), as the 2nd Battalion of the 11th Infantry, one of the nine "three-battalion" regiments of regulars, each battalion containing eight companies of infantry, in contrast to the original ten regular regiments of infantry, which were organized on the traditional ten-company line. The 20th Infantry was first led by General George Sykes in the Battle of Bull Run. Following the US Civil War, the Army was reorganized by Congress in July 1866, and the 11th was divided into three regiments, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Lieutenant
Second lieutenant is a junior commissioned officer military rank in many armed forces, comparable to NATO OF-1 rank. Australia The rank of second lieutenant existed in the military forces of the Australian colonies and Australian Army until 1986. In the colonial forces, which closely followed the practices of the British military, the rank of second lieutenant began to replace ranks such as ensign and cornet from 1871. New appointments to the rank of second lieutenant ceased in the regular army in 1986. Immediately prior to this change, the rank had been effectively reserved for new graduates from the Officer Cadet School, Portsea which closed in 1985. (Graduates of the Australian Defence Force Academy (ADFA) and the Royal Military College, Duntroon (RMC-D) are commissioned as lieutenants.). The rank of second lieutenant is only appointed to officers in special appointments such as training institutions, university regiments and while under probation during training. Trai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Point, New York
West Point is the oldest continuously occupied military post in the United States. Located on the Hudson River in New York, West Point was identified by General George Washington as the most important strategic position in America during the American Revolution. Until January 1778, West Point was not occupied by the military. On January 27, 1778, Brigadier General Samuel Holden Parsons and his brigade crossed the ice on the Hudson River and climbed to the plain on West Point and from that day to the present, West Point has been occupied by the United States Army. It comprises approximately including the campus of the United States Military Academy, which is commonly called "West Point". West Point is a census-designated place (CDP) located in the town of Highlands in Orange County, located on the western bank of the Hudson River. The population was 6,763 at the 2010 census. It is part of the New York–Newark–Jersey City, NY–NJ–PA Metropolitan Statistical Area as well as t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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