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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 de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudder
A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, airship, or other vehicle that moves through a fluid medium (usually air or water). On an airplane, 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 or fuselage, thus imparting a turning or 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 afterend. Often rudders are shaped to minimize 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 link rudders to steering wheels. In typical aircraft, the rudder is operated by pedals via mechanical linkages or hydraulics. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cologne
Cologne ( ; ; ) is the largest city of the States of Germany, German state of North Rhine-Westphalia and the List of cities in Germany by population, fourth-most populous city of Germany with nearly 1.1 million inhabitants in the city proper and over 3.1 million people in the Cologne Bonn Region, Cologne Bonn urban region. Cologne is also part of the Rhine-Ruhr metropolitan region, the List of EU metropolitan regions by GDP#2021 ranking of top four German metropolitan regions, second biggest metropolitan region by GDP in the European Union. Centered on the left bank of the Rhine, left (west) bank of the Rhine, Cologne is located on the River Rhine (Lower Rhine), about southeast of the North Rhine-Westphalia state capital Düsseldorf and northwest of Bonn, the former capital of West Germany. The city's medieval Cologne Cathedral () was the History of the world's tallest buildings#Churches and cathedrals: Tallest buildings between the 13th and 20th century, world's talles ... [...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 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: phylogenetic trees, phylogenies). Phy ... 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 (testicles 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 INSL ... [...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 () 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. During the Renaissance, Sebastian Brant amplified and reworked Plato's text in a satirical book called '' Ship of Fools'' (''Das Narrenschiff'', 1494) which was translated soon in Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rota Fortunae
In Medieval philosophy, medieval and ancient philosophy, the Wheel of Fortune or ''Rota Fortunae'' is a symbol of the capricious nature of destiny, Fate. The wheel belongs to the goddess Fortuna (mythology), Fortuna (Greek mythology, 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 si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vatican City
Vatican City, officially the Vatican City State (; ), is a Landlocked country, landlocked sovereign state and city-state; it is enclaved within Rome, the capital city of Italy and Bishop of Rome, seat of the Catholic Church. It became independent from the Kingdom of Italy in 1929 with the Lateran Treaty. It is governed by the Holy See, itself a Legal status of the Holy See, sovereign entity under international law, which maintains Temporal power of the Holy See, its temporal power, governance, diplomacy, and spiritual independence. ''Vatican'' is also used as a metonym for the pope, the central authority of the Roman Catholic Church, and the Holy See and the Roman Curia. With an area of and a population of about 882 in 2024, it is the List of countries and dependencies by area, smallest sovereign state in the world both by area and List of countries and dependencies by population, by population. It is among the List of national capitals by population, least populated capit ... [...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'' ( 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total population of over 84 million in an area of , making it the most populous member state of the European Union. It 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 Capital of Germany, nation's capital and List of cities in Germany by population, most populous city is Berlin and its main financial centre is Frankfurt; the largest urban area is the Ruhr. Settlement in the territory of modern Germany began in the Lower Paleolithic, with various tribes inhabiting it from the Neolithic onward, chiefly the Celts. Various Germanic peoples, Germanic tribes have inhabited the northern parts of modern Germany since classical ... [...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 Claudi ... [...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 (polity), state. In the case of its broad associative definition, government normally consists of legislature, executive (government), 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 list of sovereign states, independent national governments and government agency, subsidiary organizations. The main types of modern political systems recognized are democracy, democracies, totalitarian regimes, and, sitting between these two, authoritarianism, authoritarian regimes with a variety of hybrid regimes. Modern classification systems also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotland
Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjacent Islands of Scotland, islands, principally in the archipelagos of the Hebrides and the Northern Isles. To the south-east, Scotland has its Anglo-Scottish border, only land border, which is long and shared with England; the country is surrounded by the Atlantic Ocean to the north and west, the North Sea to the north-east and east, and the Irish Sea to the south. The population in 2022 was 5,439,842. Edinburgh is the capital and Glasgow is the most populous of the cities of Scotland. The Kingdom of Scotland emerged as an independent sovereign state in the 9th century. In 1603, James VI succeeded to the thrones of Kingdom of England, England and Kingdom of Ireland, Ireland, forming a personal union of the Union of the Crowns, three kingdo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
