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HMS Eagle (1774)
HMS ''Eagle'' was a British 64-gun third-rate ship of the line of the Royal Navy, launched on 2 May 1774 at Rotherhithe. History On 7 September 1776, the experimental American submarine , under the guidance of army volunteer Sergeant Ezra Lee, was alleged to have attacked HMS ''Eagle'', which was moored off what is today called Liberty Island, but was unable to bore through the hull. When Lee attempted another spot in the hull, he lost the ship, and eventually abandoned the attempt. British naval historian Richard Compton-Hall stated that the problems of achieving neutral buoyancy Neutral buoyancy occurs when an object's average density is equal to the density of the fluid in which it is immersed, resulting in the buoyant force balancing the force of gravity that would otherwise cause the object to sink (if the body's densi ... would have rendered the vertical propeller useless. The route ''Turtle'' would have had to take to attack HMS ''Eagle'' was slightly across the ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kingdom Of Great Britain
The Kingdom of Great Britain (officially Great Britain) was a Sovereign state, sovereign country in Western Europe from 1 May 1707 to the end of 31 December 1800. The state was created by the 1706 Treaty of Union and ratified by the Acts of Union 1707, which united the kingdoms of Kingdom of England, England (which included Wales) and Kingdom of Scotland, Scotland to form a single kingdom encompassing the whole island of Great Britain and its outlying islands, with the exception of the Isle of Man and the Channel Islands. The unitary state was governed by a single Parliament of Great Britain, parliament at the Palace of Westminster, but distinct legal systems – English law and Scots law – remained in use. The formerly separate kingdoms had been in personal union since the 1603 "Union of the Crowns" when James VI of Scotland became King of England and King of Ireland. Since James's reign, who had been the first to refer to himself as "king of Great Britain", a political un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Of The Line
A ship of the line was a type of naval warship constructed during the Age of Sail from the 17th century to the mid-19th century. The ship of the line was designed for the naval tactic known as the line of battle, which depended on the two columns of opposing warships maneuvering to volley fire with the cannons along their broadsides. In conflicts where opposing ships were both able to fire from their broadsides, the opponent with more cannons firingand therefore more firepowertypically had an advantage. Since these engagements were almost invariably won by the heaviest ships carrying more of the most powerful guns, the natural progression was to build sailing vessels that were the largest and most powerful of their time. From the end of the 1840s, the introduction of steam power brought less dependence on the wind in battle and led to the construction of screw-driven wooden-hulled ships of the line; a number of purely sail-powered ships were converted to this propulsion mech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ships Of The Line Of The Royal Navy
A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished from boats, based on size, shape, load capacity, and purpose. Ships have supported exploration, trade, warfare, migration, colonization, and science. After the 15th century, new crops that had come from and to the Americas via the European seafarers significantly contributed to world population growth. Ship transport is responsible for the largest portion of world commerce. The word ''ship'' has meant, depending on the era and the context, either just a large vessel or specifically a ship-rigged sailing ship with three or more masts, each of which is square-rigged. As of 2016, there were more than 49,000 merchant ships, totaling almost 1.8 billion dead weight tons. Of these 28% were oil tankers, 43% were bulk carriers, and 13% were con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neutral Buoyancy
Neutral buoyancy occurs when an object's average density is equal to the density of the fluid in which it is immersed, resulting in the buoyant force balancing the force of gravity that would otherwise cause the object to sink (if the body's density is greater than the density of the fluid in which it is immersed) or rise (if it is less). An object that has neutral buoyancy will neither sink nor rise. In scuba diving, the ability to maintain neutral buoyancy through controlled breathing, accurate weighting, and management of the buoyancy compensator is an important skill. A scuba diver maintains neutral buoyancy by continuous correction, usually by controlled breathing, as neutral buoyancy is an unstable condition for a compressible object in a liquid. History The mathematician Archimedes discovered much of how buoyancy works more than 2000 years ago. In his research, Archimedes discovered that an object is buoyed up by a force equal to the weight of the water displaced by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberty Island
Liberty Island is a federally owned island in Upper New York Bay in the United States. Its most notable feature is the Statue of Liberty (''Liberty Enlightening the World''), a large statue by Frédéric Auguste Bartholdi that was dedicated in 1886. The island also contains the Statue of Liberty Museum, which opened in 2019 and exhibits the statue's original torch. Long known as Bedloe's Island, it was renamed by an act of the United States Congress in 1956. Part of New York (state), New York State, the island is an exclave of the New York City Boroughs of New York City, borough of Manhattan, surrounded by the waters of Jersey City, New Jersey. Liberty Island became part of the Statue of Liberty National Monument in 1937 through Presidential Proclamation 2250, signed by President Franklin D. Roosevelt. In 1966, it was listed on the National Register of Historic Places as part of Statue of Liberty National Monument, Statue of Liberty National Monument, Ellis Island and Liberty I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ezra Lee
Ezra Lee (August 1749 – October 29, 1821) was an American colonial soldier, best known for commanding and operating the one-man ''Turtle'' submarine. Early life and career Lee was born in Lyme, Connecticut. On January 1, 1776, he enlisted in the 10th Continental Regiment, which was raised in Connecticut, as a sergeant. In August 1776 he was selected by brother-in-law Brigadier General Samuel Holden Parsons, also of Lyme, as one of several volunteers to learn to operate the ''Turtle'', an early submarine invented by Saybrook, Connecticut, native David Bushnell. When General George Washington authorized an attack on British Admiral Richard Howe's flagship , then lying in New York harbor, Lee was chosen to operate the "infernal machine". Governors Island attack Sergeant Lee piloted the ''Turtle'' up to the ''Eagle'', which was moored off what is today called Governors Island, due south of Manhattan. A common misconception was that Lee failed because he could not manage to bor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Picturesque View Of The State Of The Nation For February 1778 (caricature) RMG PU4786
A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''a'' (pronounced ), plural ''aes''. It is similar in shape to the Ancient Greek letter alpha, from which it derives. The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lowercase version can be written in two forms: the double-storey a and single-storey ɑ. The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children, and is also found in italic type. In English grammar, " a", and its variant " an", are indefinite articles. History The earliest certain ancestor of "A" is aleph (also written 'aleph), the first letter of the Phoenician alphabet, which consisted entirely of consonants (for that reason, it is also called an abjad to distinguish it f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turtle Submarine 1776
Turtles are an order of reptiles known as Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked turtles), which differ in the way the head retracts. There are 360 living and recently extinct species of turtles, including land-dwelling tortoises and freshwater terrapins. They are found on most continents, some islands and, in the case of sea turtles, much of the ocean. Like other amniotes (reptiles, birds, and mammals) they breathe air and do not lay eggs underwater, although many species live in or around water. Turtle shells are made mostly of bone; the upper part is the domed carapace, while the underside is the flatter plastron or belly-plate. Its outer surface is covered in scales made of keratin, the material of hair, horns, and claws. The carapace bones develop from ribs that grow sideways and develop into broad flat plates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotherhithe
Rotherhithe () is a district of south-east London, England, and part of the London Borough of Southwark. It is on a peninsula on the south bank of the Thames, facing Wapping, Shadwell and Limehouse on the north bank, as well as the Isle of Dogs to the east of the Thames and is a part of the London Docklands, Docklands area. It borders Bermondsey to the west and Deptford to the south east. Rotherhithe has a long history as a port, with Elizabethan era, Elizabethan shipyards and working docks until the 1970s. In the 1980s, the area along the river was redeveloped as housing through a mix of warehouse conversions and new-build developments. Following the arrival of the Jubilee line in 1999 (giving quick connections to the West End of London, West End and to Canary Wharf) and the London Overground in 2010 (providing a quick route to the City of London), the rest of Rotherhithe is now a gentrification, gentrifying residential and commuter area, with urban regeneration progressing arou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service. From the middle decades of the 17th century, and through the 18th century, the Royal Navy vied with the Dutch Navy and later with the French Navy for maritime supremacy. From the mid 18th century, it was the world's most powerful navy until the Second World War. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superiority globally. Owing to this historical prominence, it is common, even among non-Britons, to ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Third-rate
In the rating system of the Royal Navy, a third rate was a ship of the line which from the 1720s mounted between 64 and 80 guns, typically built with two gun decks (thus the related term two-decker). Years of experience proved that the third rate ships embodied the best compromise between sailing ability (speed, handling), firepower, and cost. So, while first-rates and second-rates were both larger and more powerful, third-rate ships were the optimal configuration. Rating When the rating system was first established in the 1620s, the third rate was defined as those ships having at least 200 but not more than 300 men; previous to this, the type had been classified as "middling ships". By the 1660s, the means of classification had shifted from the number of men to the number of carriage-mounted guns, and third rates at that time mounted between 48 and 60 guns. By the turn of the century, the criterion boundaries had increased and third rate carried more than 60 guns, with seco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom Of Great Britain And Ireland
The United Kingdom of Great Britain and Ireland was a sovereign state in the British Isles that existed between 1801 and 1922, when it included all of Ireland. It was established by the Acts of Union 1800, which merged the Kingdom of Great Britain and the Kingdom of Ireland into a unified state. The establishment of the Irish Free State in 1922 led to the remainder later being renamed the United Kingdom of Great Britain and Northern Ireland in 1927. The United Kingdom, having financed the European coalition that defeated France during the Napoleonic Wars, developed a large Royal Navy that enabled the British Empire to become the foremost world power for the next century. For nearly a century from the final defeat of Napoleon following the Battle of Waterloo to the outbreak of World War I, Britain was almost continuously at peace with Great Powers. The most notable exception was the Crimean War with the Russian Empire, in which actual hostilities were relatively limited. How ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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