Loonie
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Loonie
The loonie (french: huard), formally the Canadian one-dollar coin, is a gold-coloured Canadian coin that was introduced in 1987 and is produced by the Royal Canadian Mint at its facility in Winnipeg. The most prevalent versions of the coin show a common loon, a bird found throughout Canada, on the reverse and Queen Elizabeth II, the nation's head of state at the time of the coin's issue, on the obverse. Various commemorative and specimen-set editions of the coin with special designs replacing the loon on the reverse have been minted over the years. The coin's outline is an 11-sided Reuleaux polygon. Its diameter of 26.5 mm and its 11-sidedness matched that of the already-circulating Susan B. Anthony dollar in the United States, and its thickness of 1.95 mm was a close match to the latter's 2.0 mm. Its gold colour differed from the silver-coloured Anthony dollar; however, the succeeding Sacagawea and Presidential dollars matched the loonie's overall hue. Othe ...
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Canadian Dollar
The Canadian dollar ( symbol: $; code: CAD; french: dollar canadien) is the currency of Canada. It is abbreviated with the dollar sign $, there is no standard disambiguating form, but the abbreviation Can$ is often suggested by notable style guides for distinction from other dollar-denominated currencies. It is divided into 100 cents (¢). Owing to the image of a common loon on its reverse, the dollar coin, and sometimes the unit of currency itself, are sometimes referred to as the ''loonie'' by English-speaking Canadians and foreign exchange traders and analysts. Accounting for approximately 2% of all global reserves, the Canadian dollar is the fifth-most held reserve currency in the world, behind the U.S. dollar, the euro, the yen and sterling. The Canadian dollar is popular with central banks because of Canada's relative economic soundness, the Canadian government's strong sovereign position, and the stability of the country's legal and political systems. Histo ...
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Voyageur Dollar
The voyageur dollar is a coin of Canada that was struck for circulation from 1935 through 1986. Until 1968, the coin was composed of 80% silver. A smaller, nickel version for general circulation was struck from 1968 through 1986. In 1987, the coin was replaced by the loonie. However, like all of Canada's discontinued coins, the voyageur dollar coins remain legal tender. History Production On May 4, 1910, the Canadian government passed an amendment to the ''Currency Act'' (Bill 195) which, among other things, called for the requirement of a Canadian silver dollar. James Bonar, Deputy Master of the Royal Mint, had ordered the master dies for this new dollar on November 10, 1910. Production of the dies was delayed, and they were not delivered to the Mint until nearly a year later. By the time the dies arrived, Sir Robert Borden had won his Canadian election, and cancelled the production of the silver dollar. While no official reason was given from the Borden government about the can ...
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Coins Of The Canadian Dollar
The coins of Canada are produced by the Royal Canadian Mint and denominated in Canadian dollars ($) and the subunit of dollars, cent (currency), cents (¢). An effigy of the reigning monarch always appears on the obverse of all coins. There are standard images which appear on the reverse, but there are also commemorative and Royal Canadian Mint numismatic coins (20th century), numismatic issues with different images on the reverse. Circulation denominations There are six denominations of Canadian circulation coinage in production: 5¢, 10¢, 25¢, 50¢, $1, and $2. Officially they are each named according to their value (e.g. "10-cent piece"), but in practice only the 50-cent piece (Canadian coin), 50-cent piece is known by that name. The three smallest coins are known by the traditional names "nickel" (5¢), "dime" (10¢), and "quarter" (25¢), and the one-dollar and two-dollar coins are called the "loonie" (for the loon depiction on the Obverse and reverse, reverse) and the "to ...
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Toonie
The toonie (also spelled twonie or twoonie), formally the Canadian two-dollar coin (, nicknamed or ), was introduced on February 19, 1996, by Minister of Public Works Diane Marleau. , it possesses the highest monetary value of any circulating Canadian coin. The toonie is a bi-metallic coin which on the reverse side bears an image of a polar bear by artist Brent Townsend. The obverse, like all other current Canadian circulation coins, has a portrait of Queen Elizabeth II. It has the words in a typeface different from any other Canadian coin. The coin is manufactured using a patented distinctive bi-metallic coin-locking mechanism. The coins are estimated to last 20 years. The discontinued two-dollar bill was less expensive to manufacture but lasted only one year on average. On April 10, 2012, the Royal Canadian Mint (RCM) announced design changes to the loonie and toonie, which include new security features. Coins minted prior to 2012 consist of an aluminum bronze inner core ...
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Royal Canadian Mint
}) is the mint of Canada and a Crown corporation, operating under the ''Royal Canadian Mint Act''. The shares of the Mint are held in trust for the Crown in right of Canada. The Mint produces all of Canada's circulation coins, and manufactures circulation coins on behalf of other nations. The Mint also designs and manufactures precious and base metal collector coins; gold, silver, palladium, and platinum bullion coins; medals, as well as medallions and tokens. It further offers gold and silver refinery and assay services. The Mint serves the public's interest but is also mandated to operate "in anticipation of profit" (i.e., to function in a commercial manner without relying on taxpayer support to fund its operations). Like private-sector companies, the Mint has a board of directors consisting of a chair, the president and CEO of the Mint, and eight other directors. Traditionally, the president of the Royal Canadian Mint is known as the Master of the Mint, currently Marie Le ...
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Hendecagon
In geometry, a hendecagon (also undecagon or endecagon) or 11-gon is an eleven-sided polygon. (The name ''hendecagon'', from Greek ''hendeka'' "eleven" and ''–gon'' "corner", is often preferred to the hybrid ''undecagon'', whose first part is formed from Latin ''undecim'' "eleven".) Regular hendecagon A '' regular hendecagon'' is represented by Schläfli symbol . A regular hendecagon has internal angles of 147. degrees (=147 \tfrac degrees). The area of a regular hendecagon with side length ''a'' is given by. :A = \fraca^2 \cot \frac \simeq 9.36564\,a^2. As 11 is not a Fermat prime, the regular hendecagon is not constructible with compass and straightedge. Because 11 is not a Pierpont prime, construction of a regular hendecagon is still impossible even with the usage of an angle trisector. Close approximations to the regular hendecagon can be constructed. For instance, the ancient Greek mathematicians approximated the side length of a hendecagon inscribed in a unit circl ...
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Common Loon
The common loon or great northern diver (''Gavia immer'') is a large member of the loon, or diver, family of birds. Breeding adults have a plumage that includes a broad black head and neck with a greenish, purplish, or bluish sheen, blackish or blackish-grey upperparts, and pure white underparts except some black on the undertail coverts and vent. Non-breeding adults are brownish with a dark neck and head marked with dark grey-brown. Their upperparts are dark brownish-grey with an unclear pattern of squares on the shoulders, and the underparts, lower face, chin, and throat are whitish. The sexes look alike, though males are significantly heavier than females. During the breeding season, loons live on lakes and other waterways in Canada; the northern United States (including Alaska); and southern parts of Greenland and Iceland. Small numbers breed on Svalbard and sporadically elsewhere in Arctic Eurasia. Common loons winter on both coasts of the US as far south as Mexico, and on ...
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Great Northern Diver
The common loon or great northern diver (''Gavia immer'') is a large member of the loon, or diver, family of birds. Breeding adults have a plumage that includes a broad black head and neck with a greenish, purplish, or bluish sheen, blackish or blackish-grey upperparts, and pure white underparts except some black on the undertail coverts and vent. Non-breeding adults are brownish with a dark neck and head marked with dark grey-brown. Their upperparts are dark brownish-grey with an unclear pattern of squares on the shoulders, and the underparts, lower face, chin, and throat are whitish. The sexes look alike, though males are significantly heavier than females. During the breeding season, loons live on lakes and other waterways in Canada; the northern United States (including Alaska); and southern parts of Greenland and Iceland. Small numbers breed on Svalbard and sporadically elsewhere in Arctic Eurasia. Common loons winter on both coasts of the US as far south as Mexico, and on t ...
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Hendecagon
In geometry, a hendecagon (also undecagon or endecagon) or 11-gon is an eleven-sided polygon. (The name ''hendecagon'', from Greek ''hendeka'' "eleven" and ''–gon'' "corner", is often preferred to the hybrid ''undecagon'', whose first part is formed from Latin ''undecim'' "eleven".) Regular hendecagon A '' regular hendecagon'' is represented by Schläfli symbol . A regular hendecagon has internal angles of 147. degrees (=147 \tfrac degrees). The area of a regular hendecagon with side length ''a'' is given by. :A = \fraca^2 \cot \frac \simeq 9.36564\,a^2. As 11 is not a Fermat prime, the regular hendecagon is not constructible with compass and straightedge. Because 11 is not a Pierpont prime, construction of a regular hendecagon is still impossible even with the usage of an angle trisector. Close approximations to the regular hendecagon can be constructed. For instance, the ancient Greek mathematicians approximated the side length of a hendecagon inscribed in a unit circl ...
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Canadian Silver Dollar
The Canadian silver dollar () was first issued by the Royal Canadian Mint in 1935 to commemorate the Silver Jubilee of King George V. The coin's reverse design was sculpted by Emanuel Hahn and portrays a voyageur and a person of Indigenous descent paddling a birch-bark canoe. The faint lines in the background represent the Northern Lights. The voyageur design was used on the dollar until 1986. It was then replaced with the 1987 Canadian 1-dollar coin (colloquially known as the "loonie"). 1967 marked the end of the silver dollar as a ''business strike'', or a coin issued for circulation. After 1967, the dollar coin was made of nickel, except for non-circulating commemorative issues for the collector market, which continue to contain silver. Varieties 1911 While the silver dollar was not struck for production in 1911, three trial strikes were produced by the Royal Mint in London: two struck in silver and one in lead. Since these coins were unique and not intended for circulati ...
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Metonymy
Metonymy () is a figure of speech in which a concept is referred to by the name of something closely associated with that thing or concept. Etymology The words ''metonymy'' and ''metonym'' come from grc, μετωνυμία, 'a change of name', from , 'after, post, beyond' and , , a suffix that names figures of speech, from , or , 'name'. Background Metonymy and related figures of speech are common in everyday speech and writing. Synecdoche and metalepsis are considered specific types of metonymy. Polysemy, the capacity for a word or phrase to have multiple meanings, sometimes results from relations of metonymy. Both metonymy and metaphor involve the substitution of one term for another. In metaphor, this substitution is based on some specific analogy between two things, whereas in metonymy the substitution is based on some understood association or contiguity. American literary theorist Kenneth Burke considers metonymy as one of four "master tropes": metaphor, metonymy, ...
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Curve Of Constant Width
In geometry, a curve of constant width is a simple closed curve in the plane whose width (the distance between parallel supporting lines) is the same in all directions. The shape bounded by a curve of constant width is a body of constant width or an orbiform, the name given to these shapes by Leonhard Euler. Standard examples are the circle and the Reuleaux triangle. These curves can also be constructed using circular arcs centered at crossings of an arrangement of lines, as the involutes of certain curves, or by intersecting circles centered on a partial curve. Every body of constant width is a convex set, its boundary crossed at most twice by any line, and if the line crosses perpendicularly it does so at both crossings, separated by the width. By Barbier's theorem, the body's perimeter is exactly times its width, but its area depends on its shape, with the Reuleaux triangle having the smallest possible area for its width and the circle the largest. Every superset of a body o ...
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