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Gubernaculum (classical)
A gubernaculum in classical references describes a ship's rudder or steering oar. The English word government is related to the word. The Old English word governail and the Scots word gouernaill are both derived from it. Classical history The ancient rudder's different parts were distinguished by the following names: ansa, the handle; clavus, the shaft; pinna, the blade. The famous ship ''Tessarakonteres'' or "Forty" is said to have had four rudders. In the Bible, Paul's ship, which was shipwrecked on Malta, had its rudders (plural) cut loose. Classical depiction Various gods such as Tritons and Venus have been shown with a gubernaculum. It is most associated with Fortuna since, along with the cornucopia, it is an item that she is often depicted as holding. The corresponding Greek god Tyche is also regularly shown with a gubernaculum. There are abundant depictions of Fortuna holding the gubernaculum on coins, in paintings, on altars and statues or statuettes. Fortuna is depicted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudder
A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, aircraft, or other vehicle that moves through a fluid medium (generally aircraft, air or watercraft, water). On an aircraft the rudder is used primarily to counter adverse yaw and p-factor and is not the primary control used to turn the airplane. A rudder operates by redirecting the fluid past the hull (watercraft), hull or fuselage, thus imparting a turning or yaw (rotation), yawing motion to the craft. In basic form, a rudder is a flat plane or sheet of material attached with hinges to the craft's stern, tail, or after end. Often rudders are shaped so as to minimize Drag (physics), hydrodynamic or aerodynamic drag. On simple watercraft, a tiller—essentially, a stick or pole acting as a lever arm—may be attached to the top of the rudder to allow it to be turned by a helmsman. In larger vessels, cables, pushrods, or hydraulics may be used to link rudders to steering wheels. In typical air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cologne
Cologne ( ; german: Köln ; ksh, Kölle ) is the largest city of the German western States of Germany, state of North Rhine-Westphalia (NRW) and the List of cities in Germany by population, fourth-most populous city of Germany with 1.1 million inhabitants in the city proper and 3.6 million people in the Cologne Bonn Region, urban region. Centered on the left bank of the Rhine, left (west) bank of the Rhine, Cologne is about southeast of NRW's state capital Düsseldorf and northwest of Bonn, the former capital of West Germany. The city's medieval Catholic Cologne Cathedral (), the third-tallest church and tallest cathedral in the world, constructed to house the Shrine of the Three Kings, is a globally recognized landmark and one of the most visited sights and pilgrimage destinations in Europe. The cityscape is further shaped by the Twelve Romanesque churches of Cologne, and Cologne is famous for Eau de Cologne, that has been produced in the city since 1709, and "col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gubernaculum (nematode Anatomy)
In nematodes, the gubernaculum is a hardened or sclerotized structure in the wall that guides the protrusion of the spicule during copulation. For example, in ''Caenorhabditis elegans'', spicules serve to open and dilate the vagina of the hermaphrodite and the gubernaculum is a grooved plate in which the spicules move; the gubernaculum is controlled by two erector and two protractor muscles. The shape and size of the gubernaculum are often important characters for the systematics Biological systematics is the study of the diversification of living forms, both past and present, and the relationships among living things through time. Relationships are visualized as evolutionary trees (synonyms: cladograms, phylogenetic tre ... of nematodes. References Nematode anatomy Helminthology {{nematode-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gubernaculum
The paired gubernacula (from Ancient Greek κυβερνάω = pilot, steer) also called the caudal genital ligament, are embryonic structures which begin as undifferentiated mesenchyme attaching to the caudal end of the gonads (testes in males and ovaries in females). Structure The gubernaculum is present only during the development of the reproductive system. It is later replaced by distinct vestiges in males and females.The gubernaculum arises in the upper abdomen from the lower end of the gonadal ridge and helps guide the testis in its descent to the inguinal region. Males * The upper part of the gubernaculum degenerates. * The lower part persists as the gubernaculum testis ("scrotal ligament"). This ligament secures the testis to the most inferior portion of the scrotum, tethering it in place and limiting the degree to which the testis can move within the scrotum. * Cryptorchidism (undescended testes) are observed in ''INSL3''-null male mice. This implicates INSL3 as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Of State
The Ship of State is an ancient and oft-cited metaphor, famously expounded by Plato in the ''Republic'' (Book 6, 488a–489d), which likens the governance of a city-state to the command of a vessel. Plato expands the established metaphor and ultimately argues that the only people fit to be captain of the ship ( grc-gre, ναῦς) are philosopher kings, benevolent men with absolute power who have access to the Form of the Good. The origins of the metaphor can be traced back to the lyric poet Alcaeus (fragments 6, 208, 249), and it is also found in Aeschylus' ''Seven Against Thebes'', Sophocles' ''Antigone'' and Aristophanes' Wasps before Plato. Plato's use of the metaphor Plato establishes the comparison by saying that Zeus was one of the best models of describing the steering of a ship as just like any other "craft" or profession—in particular, that of a statesman. He then runs the metaphor in reference to a particular type of government: democracy. Plato's democracy is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rota Fortunae
In medieval and ancient philosophy the Wheel of Fortune, or ''Rota Fortunae'', is a symbol of the capricious nature of Fate. The wheel belongs to the goddess Fortuna (Greek equivalent Tyche) who spins it at random, changing the positions of those on the wheel: some suffer great misfortune, others gain windfalls. The metaphor was already a cliché in ancient times, complained about by Tacitus, but was greatly popularized for the Middle Ages by its extended treatment in the ''Consolation of Philosophy'' by Boethius from around 520. It became a common image in manuscripts of the book, and then other media, where Fortuna, often blindfolded, turns a large wheel of the sort used in watermills, to which kings and other powerful figures are attached. Origins The origin of the word is from the "wheel of fortune"—the zodiac, referring to the Celestial spheres of which the 8th holds the stars, and the 9th is where the signs of the zodiac are placed. The concept was first invented in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vatican City
Vatican City (), officially the Vatican City State ( it, Stato della Città del Vaticano; la, Status Civitatis Vaticanae),—' * german: Vatikanstadt, cf. '—' (in Austria: ') * pl, Miasto Watykańskie, cf. '—' * pt, Cidade do Vaticano—' * es, Ciudad del Vaticano—' is an independent city-state, microstate and enclave and exclave, enclave within Rome, Italy. Also known as The Vatican, the state became independent from Italy in 1929 with the Lateran Treaty, and it is a distinct territory under "full ownership, exclusive dominion, and sovereign authority and jurisdiction" of the Holy See, itself a Sovereignty, sovereign entity of international law, which maintains the city state's Temporal power of the Holy See, temporal, Foreign relations of the Holy See, diplomatic, and spiritual Legal status of the Holy See, independence. With an area of and a 2019 population of about 453, it is the smallest state in the world both by area and List of countries and dependencies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dupondius
The ''dupondius'' (Latin ''two-pounder'') was a brass coin used during the Roman Republic and Roman Empire valued at 2 asses (4/5 of a sestertius or 1/5 of a denarius during the Republic and 1/2 of a sestertius or 1/8 of a denarius during the time of Augustus). The dupondius was introduced during the Roman Republic as a large bronze cast coin, although even at introduction it weighed less than 2 Roman pounds (''librae''). The initial coins featured the bust of Roma on the obverse and a six-spoked wheel on the reverse. A loaf of bread or a sextarius (c. 0.5 L) of wine cost roughly one dupondius at the height of the Roman Empire, though due to the debasement of the denarius over the following century, the dupondius was discarded. With the coinage reform of Augustus in about 23 BC, the sestertius and dupondius were produced in a type of brass called orichalcum by the Romans and numismatists, while lower denominations were produced out of reddish copper. However, some dupondii were m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated between the Baltic and North seas to the north, and the Alps to the south; it covers an area of , with a population of almost 84 million within its 16 constituent states. Germany borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its financial centre is Frankfurt; the largest urban area is the Ruhr. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity. A region named Germania was documented before AD 100. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romano-Germanic Museum
The Roman-Germanic Museum (RGM, in German: ''Römisch-Germanisches Museum'') is an archaeological museum in Cologne, Germany. It has a large collection of Roman artifacts from the Roman settlement of ''Colonia Claudia Ara Agrippinensium'', on which modern Cologne is built. The museum protects the original site of a Roman town villa, from which a large Dionysus mosaic remains in its original place in the basement, and the related Roman Road just outside. In this respect the museum is an archaeological site. The museum also has the task of preserving the Roman cultural heritage of Cologne, and therefore houses an extensive collection of Roman glass from funerals and burials and also exercises archaeological supervision over the construction of the Cologne underground. Most of the museum's collection was housed at the Wallraf-Richartz Museum in Cologne until 1946. In the front of the museum the former northern town gate of Cologne with the inscription CCAA (for Colonia Claudia A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government
A government is the system or group of people governing an organized community, generally a state. In the case of its broad associative definition, government normally consists of legislature, executive, and judiciary. Government is a means by which organizational policies are enforced, as well as a mechanism for determining policy. In many countries, the government has a kind of constitution, a statement of its governing principles and philosophy. While all types of organizations have governance, the term ''government'' is often used more specifically to refer to the approximately 200 independent national governments and subsidiary organizations. The major types of political systems in the modern era are democracies, monarchies, and authoritarian and totalitarian regimes. Historically prevalent forms of government include monarchy, aristocracy, timocracy, oligarchy, democracy, theocracy, and tyranny. These forms are not always mutually exclusive, and mixed govern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotland
Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the north and west, the North Sea to the northeast and east, and the Irish Sea to the south. It also contains more than 790 islands, principally in the archipelagos of the Hebrides and the Northern Isles. Most of the population, including the capital Edinburgh, is concentrated in the Central Belt—the plain between the Scottish Highlands and the Southern Uplands—in the Scottish Lowlands. Scotland is divided into 32 administrative subdivisions or local authorities, known as council areas. Glasgow City is the largest council area in terms of population, with Highland being the largest in terms of area. Limited self-governing power, covering matters such as education, social services and roads and transportation, is devolved from the Scott ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
