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Barbadian Dollar
The dollar has been the currency of Barbados since 1935. Globally its currency has the ISO 4217 code ''BBD'', however, unofficially in Barbados the International vehicle registration code code BDS is also commonly used, a currency code that is otherwise reserved for Bangladesh (ISO 3166-1 country code ''BD'') outside Barbados. As such the present dollar has the ISO 4217 code ''BBD''. The Barbadian dollar is divided into 100 cents. History The history of currency in the former British colony of Barbados closely follows that of British Eastern Caribbean territories in general. Even though Queen Anne's proclamation of 1704 introduced the pound sterling currency system to the West Indies, silver pieces of eight (Spanish dollars and later Mexican dollars) continued to form a major portion of the circulating currency right into the latter half of the nineteenth century. Britain adopted the gold standard in 1821 and an imperial order-in-council of 1838 resulted in Barbados formally ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heptagon
In geometry, a heptagon or septagon is a seven-sided polygon or 7-gon. The heptagon is sometimes referred to as the septagon, using "sept-" (an elision of ''septua-'', a Latin-derived numerical prefix, rather than '' hepta-'', a Greek-derived numerical prefix; both are cognate) together with the Greek suffix "-agon" meaning angle. Regular heptagon A regular heptagon, in which all sides and all angles are equal, has internal angles of 5π/7 radians (128 degrees). Its Schläfli symbol is . Area The area (''A'') of a regular heptagon of side length ''a'' is given by: :A = \fraca^2 \cot \frac \simeq 3.634 a^2. This can be seen by subdividing the unit-sided heptagon into seven triangular "pie slices" with vertices at the center and at the heptagon's vertices, and then halving each triangle using the apothem as the common side. The apothem is half the cotangent of \pi/7, and the area of each of the 14 small triangles is one-fourth of the apothem. The area of a regular heptago ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pound Sterling
Sterling (abbreviation: stg; Other spelling styles, such as STG and Stg, are also seen. ISO code: GBP) is the currency of the United Kingdom and nine of its associated territories. The pound ( sign: £) is the main unit of sterling, and the word "pound" is also used to refer to the British currency generally, often qualified in international contexts as the British pound or the pound sterling. Sterling is the world's oldest currency that is still in use and that has been in continuous use since its inception. It is currently the fourth most-traded currency in the foreign exchange market, after the United States dollar, the euro, and the Japanese yen. Together with those three currencies and Renminbi, it forms the basket of currencies which calculate the value of IMF special drawing rights. As of mid-2021, sterling is also the fourth most-held reserve currency in global reserves. The Bank of England is the central bank for sterling, issuing its own banknotes, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flying Fish
The Exocoetidae are a family of marine fish in the order Beloniformes class Actinopterygii, known colloquially as flying fish or flying cod. About 64 species are grouped in seven to nine genera. While they cannot fly in the same way a bird does, flying fish can make powerful, self-propelled leaps out of the water where their long wing-like fins enable gliding for considerable distances above the water's surface. The main reason for this behavior is thought to be to escape from underwater predators, which include swordfish, mackerel, tuna, and marlin, among others, though their periods of flight expose them to attack by avian predators such as frigate birds. Barbados is known as "the land of the flying fish", and the fish is one of the national symbols of the country. The Exocet missile is named after them, as variants are launched from underwater, and take a low trajectory, skimming the surface, before striking their targets. Etymology The term Exocoetidae is both the sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equilateral Curve
A Reuleaux triangle is a curved triangle with constant width, the simplest and best known curve of constant width other than the circle. It is formed from the intersection of three circular disks, each having its center on the boundary of the other two. Constant width means that the separation of every two parallel supporting lines is the same, independent of their orientation. Because its width is constant, the Reuleaux triangle is one answer to the question "Other than a circle, what shape can a manhole cover be made so that it cannot fall down through the hole?" Reuleaux triangles have also been called spherical triangles, but that term more properly refers to triangles on the curved surface of a sphere. They are named after Franz Reuleaux,. a 19th-century German engineer who pioneered the study of machines for translating one type of motion into another, and who used Reuleaux triangles in his designs. However, these shapes were known before his time, for instance by the d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cupronickel
Cupronickel or copper-nickel (CuNi) is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. The copper content typically varies from 60 to 90 percent. (Monel is a nickel-copper alloy that contains a minimum of 52 percent nickel.) Despite its high copper content, cupronickel is silver in colour. Cupronickel is highly resistant to corrosion by salt water, and is therefore used for piping, heat exchangers and condensers in seawater systems, as well as for marine hardware. It is sometimes used for the propellers, propeller shafts, and hulls of high-quality boats. Other uses include military equipment and chemical, petrochemical, and electrical industries. Another common 20th-century use of cupronickel was silver-coloured coins. For this use, the typical alloy has 3:1 copper to nickel ratio, with very small amounts of manganese. In the past, true silver coins were debased with cupronickel, such as coins of the pound sterling from 1947 onwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brass
Brass is an alloy of copper (Cu) and zinc (Zn), in proportions which can be varied to achieve different mechanical, electrical, and chemical properties. It is a substitutional alloy: atoms of the two constituents may replace each other within the same crystal structure. Brass is similar to bronze, another copper alloy, that uses tin instead of zinc. Both bronze and brass may include small proportions of a range of other elements including arsenic (As), lead (Pb), phosphorus (P), aluminium (Al), manganese (Mn), and silicon (Si). Historically, the distinction between the two alloys has been less consistent and clear, and modern practice in museums and archaeology increasingly avoids both terms for historical objects in favor of the more general "copper alloy". Brass has long been a popular material for decoration due to its bright, gold-like appearance; being used for drawer pulls and doorknobs. It has also been widely used to make utensils because of its low melti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc
Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size.The elements are from different metal groups. See periodic table. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity ( electrowinning). Zinc is an essential trace element for humans, animals, plants and for microorganisms and is necessary for prenatal and postnatal development. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Currencies Of The British West Indies
The region known as the British West Indies included British Guiana on the South American mainland, British Honduras in Central America, Bermuda, The Bahamas, and Jamaica, along with its former dependencies of the Cayman Islands and the Turks and Caicos Islands. It also included the Eastern Caribbean territories of Trinidad and Tobago, Barbados, the Windward Islands and the Leeward Islands. From the early 19th century to the later 20th century, the region generally used sterling coinage, although there was quite widespread usage of mixed sterling and dollar accounts. In the later 20th century there was a move towards dollar accounts in all the territories, in conjunction with the introduction of decimal fractional coinage. Early history Queen Anne's proclamation of 1704 the first attempt to introduce the pound sterling currency system to the British West Indies; however it failed to displace the existing Spanish dollar currency system right up until the great silver devaluation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fixed Exchange Rate
A fixed exchange rate, often called a pegged exchange rate, is a type of exchange rate regime in which a currency's value is fixed or pegged by a monetary authority against the value of another currency, a basket of other currencies, or another measure of value, such as gold. There are benefits and risks to using a fixed exchange rate system. A fixed exchange rate is typically used to stabilize the exchange rate of a currency by directly fixing its value in a predetermined ratio to a different, more stable, or more internationally prevalent currency (or currencies) to which the currency is pegged. In doing so, the exchange rate between the currency and its peg does not change based on market conditions, unlike in a floating (flexible) exchange regime. This makes trade and investments between the two currency areas easier and more predictable and is especially useful for small economies that borrow primarily in foreign currency and in which external trade forms a large part of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parliament Of Barbados
The Parliament of Barbados is the national legislature of Barbados. It is accorded legislative supremacy by Chapter V of the Constitution of Barbados.Constitution, Chapter V, Part 1; Section 35 The Parliament is bicameral in composition and is formally made up of two houses, an appointed Senate (Upper house) and an elected House of Assembly (Lower house), as well as the President of Barbados who is indirectly elected by both. Both houses sit in separate chambers in the Parliament Buildings (commonly known as "The Public Buildings"), in the national capital Bridgetown in Saint Michael. The Senate is made up of twenty-one Senators, while the House consists of thirty Members of Parliament (MPs) in addition to the Honourable Speaker of the House. Members to serve in the Cabinet of Barbados may be chosen by the Prime Minister from either the House of Assembly or Senate, (the Prime Minister alone who must be chosen by the President must come from the House of Assembly.) In theo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Caribbean Dollar
The Eastern Caribbean dollar ( symbol: EC$; code: XCD) is the currency of all seven full members and one associate member of the Organisation of Eastern Caribbean States (OECS). The successor to the British West Indies dollar, it has existed since 1965, and it is normally abbreviated with the dollar sign ''$'' or, alternatively, ''EC$'' to distinguish it from other dollar-denominated currencies. The EC$ is subdivided into 100 cents. It has been pegged to the United States dollar since 7 July 1976, at the exchange rate of = .70. Circulation Six of the states using the EC$ are independent states: Antigua and Barbuda, Dominica, Grenada, Saint Kitts and Nevis, Saint Lucia, and Saint Vincent and the Grenadines. The other two, Anguilla and Montserrat, are British Overseas Territories. These states are all members of the Eastern Caribbean Currency Union. The other two associate members of the OECS do not use the Eastern Caribbean dollar as their official currency: the British ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British West Indies Dollar
The British West Indies dollar (BWI$) was the currency of British Guiana and the Eastern Caribbean territories of the British West Indies from 1949 to 1965, when it was largely replaced by the East Caribbean dollar, and was one of the currencies used in Jamaica from 1954 to 1964. The monetary policy of the currency was overseen by the British Caribbean Currency Board (BCCB). It was the official currency used by the West Indies Federation The British West Indies dollar was never used in British Honduras, the Cayman Islands, the Turks and Caicos Islands, the Bahamas, or Bermuda. History Queen Anne's proclamation of 1704 introduced the pound sterling currency system to the British West Indies; however it failed to displace the existing Spanish dollar currency system right up until the late 1870s. In 1822, the British government coined , , and fractional 'Anchor dollars' for use in Mauritius and the British West Indies (but not Jamaica). A few years later copper fractional dollars were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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