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Dynamite Gun
A dynamite gun is any of a class of artillery pieces that use compressed air to propel an explosive projectile (such as one containing dynamite). Dynamite guns were in use for a brief period from the 1880s to the beginning of the twentieth century. Because of the instability of early high explosives, it was impractical to fire an explosive-filled shell from a conventional explosive-fired gun. The violent deflagration of the propellant charge and the sudden acceleration of the shell would set off the explosive in the barrel of the weapon. By using compressed air, the dynamite gun was able to accelerate the projectile more gradually through the length of the barrel. Guns for naval use were supplied with air from shipboard compressors. A small model for field use by land forces employed a powder charge to drive a piston down a cylinder, compressing air that was then fed into the gun barrel. This field model was famously used by Theodore Roosevelt's Rough Riders during the Spanish†... [...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] |
Artillery Battery
In military organizations, an artillery battery is a unit or multiple systems of artillery, mortar systems, rocket artillery, multiple rocket launchers, surface-to-surface missiles, ballistic missiles, cruise missiles, etc., so grouped to facilitate better battlefield communication and command and control, as well as to provide dispersion for its constituent gunnery crews and their systems. The term is also used in a naval context to describe groups of guns on warships. Land usage Historically the term "battery" referred to a cluster of cannon in action as a group, either in a temporary field position during a battle or at the siege of a fortress or a city. Such batteries could be a mixture of cannon, howitzer, or mortar types. A siege could involve many batteries at different sites around the besieged place. The term also came to be used for a group of cannon in a fixed fortification, for coastal or frontier defence. During the 18th century "battery" began to be used as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dale Fort
Dale Fort is a mid-19th-century coastal artillery fort at Dale Head, a rocky promontory near Dale, Pembrokeshire, west of Milford Haven in Wales. It is one of the centres run by Field Studies Council and offers residential and non-residential fieldwork for schools, colleges and universities, holiday accommodation and professional and leisure courses in natural history and arts. History Although there was a proposal for an artillery battery on this site in 1829, the present fort is a result of a recommendation by Sir John Fox Burgoyne, the Inspector-General of Fortifications, in 1850. There is no record of when construction started, but the work was completed by 1858 and a date of 1856 is inscribed above the main gate. The fort was intended to protect the anchorage at the mouth of Milford Haven by providing interlocking fire with the nearby forts at Thorn Island and West Blockhouse. In 1876 there was a recommendation that the fort be re-armed with larger and more modern guns, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pneumatic Weapon
A pneumatic weapon is a weapon that fires a projectile by means of air pressure, similar in principle to the operation of pneumatic tube delivery systems. The term comes from a Greek word for "wind" or "breath" (πνεῦμα). Comparison with firearms In theory, pneumatic weapons have certain advantages over traditional firearms: *The ammunition needs no propellant or casing; the entire round becomes the projectile. This makes it smaller, lighter, easier and cheaper manufactured, and safer. For the same payload, more projectile can be fired. *Since no propellant is fired, there is no chemical residue to accumulate in the barrel or chamber, no fumes or odor either. *Because there is no casing to eject, the firing mechanism can be simpler (resulting in a more reliable and cheaper weapon), and it is theoretically possible to have a higher rate of repeat fire. *The gas is cool to begin with, and furthermore undergoes adiabatic cooling as it pushes the projectile, instead of being a h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siege Of Santiago
The siege of Santiago, also known as the siege of Santiago de Cuba, was the last major operation of the Spanish–American War on the island of Cuba. Santiago campaign The primary objective of the American Fifth Army Corps' invasion of Cuba was the capture of the city of Santiago de Cuba. U.S. forces had driven back the Spaniards' first line of defense at the Battle of Las Guasimas, after which General Arsenio Linares pulled his troops back to the main line of defense against Santiago along San Juan Heights. In the charge at the Battle of San Juan Hill U.S. forces captured the Spanish position. At the Battle of El Caney the same day, U.S. forces took the fortified Spanish position and were then able to extend the U.S. flank on San Juan Hill. The destruction of the Spanish fleet at the Battle of Santiago de Cuba allowed U.S. forces to safely besiege the city. Siege On July 3, 1898, the same day as the naval battle, Major General William "Pecos Bill" Shafter began the sieg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smokeless Powder
Finnish smokeless powderSmokeless powder is a type of propellant used in firearms and artillery that produces less smoke and less fouling when fired compared to gunpowder ("black powder"). The combustion products are mainly gaseous, compared to around 55% solid products (mostly potassium carbonate, potassium sulfate, and potassium sulfide) for black powder. In addition, smokeless powder does not leave the thick, heavy fouling of hygroscopic material associated with black powder that causes rusting of the barrel. Despite its name, smokeless powder is not completely free of smoke; while there may be little noticeable smoke from small-arms ammunition, smoke from artillery fire can be substantial. Originally invented in 1884 by Paul Vieille, the most common formulations are based on nitrocellulose, but the term was also used to describe various picrate mixtures with nitrate, chlorate, or dichromate oxidizers during the late 19th century, before the advantages of nitrocellulose beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Compressor
A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. The main distinction is that the focus of a compressor is to change the density or volume of the fluid, which is mostly only achievable on gases. Gases are compressible, while liquids are relatively incompressible, so compressors are rarely used for liquids. The main action of a pump is to pressurize and transport liquids. Many compressors can be staged, that is, the fluid is compressed several times in steps or stages, to increase discharge pressure. Often, the second stage is physically smaller than the primary stage, to accommodate the already compressed gas without reducing its pressure. Each stage further compresses the gas and increases its pressure and also temperature (if inter cooling between stages i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Holland (SS-1) - Scientific American 1898
Several ships of the United States Navy have been named USS ''Holland'': * , launched 1897 as the prototype ''Holland VI'', then commissioned as USS ''Holland'' in 1900, was one of the US Navy's first submarines. * , launched 1926, was a submarine tender that served in World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ... and was scrapped in 1953. * , launched 1963, was a submarine tender decommissioned in 1996. {{DEFAULTSORT:Holland, Uss United States Navy ship names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort H
A fortification is a military construction or building designed for the defense of territories in warfare, and is also used to establish rule in a region during peacetime. The term is derived from Latin ''fortis'' ("strong") and ''facere'' ("to make"). From very early history to modern times, defensive walls have often been necessary for cities to survive in an ever-changing world of invasion and conquest. Some settlements in the Indus Valley civilization were the first small cities to be fortified. In ancient Greece, large stone walls had been built in Mycenaean Greece, such as the ancient site of Mycenae (famous for the huge stone blocks of its 'cyclopean' walls). A Greek '' phrourion'' was a fortified collection of buildings used as a military garrison, and is the equivalent of the Roman castellum or English fortress. These constructions mainly served the purpose of a watch tower, to guard certain roads, passes, and borders. Though smaller than a real fortress, they acted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York (state)
New York, officially the State of New York, is a state in the Northeastern United States. It is often called New York State to distinguish it from its largest city, New York City. With a total area of , New York is the 27th-largest U.S. state by area. With 20.2 million people, it is the fourth-most-populous state in the United States as of 2021, with approximately 44% living in New York City, including 25% of the state's population within Brooklyn and Queens, and another 15% on the remainder of Long Island, the most populous island in the United States. The state is bordered by New Jersey and Pennsylvania to the south, and Connecticut, Massachusetts, and Vermont to the east; it has a maritime border with Rhode Island, east of Long Island, as well as an international border with the Canadian provinces of Quebec to the north and Ontario to the northwest. New York City (NYC) is the most populous city in the United States, and around two-thirds of the state's popul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fisher's Island
Fishers Island (Pequot: ''Munnawtawkit'') is an island that is part of Southold, New York, United States at the eastern end of Long Island Sound, off the southeastern coast of Connecticut across Fishers Island Sound. About long and wide, it is about from the tip of Long Island at Orient Point, New York, Orient Point, each from Napatree Point at the southwestern tip of Rhode Island and Groton Long Point in Connecticut, and about southeast of New London, Connecticut. It is accessible from New London by plane and regular ferry service. The island is part of the Administrative divisions of New York#Town, town of Southold (town), New York, Southold in Suffolk County, New York, Suffolk County. It is a census-designated place (CDP). As of the 2010 census, there were 236 people living year-round on of land. The population rises to about 2,000 during peak summer weekends, as throngs disembark on the island from Connecticut. Geography According to the United States Census Bureau, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
