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Nymphaeum (Olympia)
Nymphaeum (Olympia) (Latin, grc, νυμφαῖον), etymologically "home of the nymphs," or water goddesses, at Olympia, Greece, ancient Olympia was the official name of a water-distribution structure constructed in the mid-2nd century at that site to provide water to the masses who attended the Olympic Games in July and August. Nymphaeum was the general name throughout the Mediterranean for an ornate structure that terminated an aqueduct bringing water from distant elevated terrain, say a stream or copious springs.Noting that the use of the term Nymphaeum for secular purposes dates to the 2nd century, Aristodemou distinguishes several types of Roman Nymphaea: 1. Caves 2. Royal (rectangular with arch and apse) 3. Cascading, or water theatre 4a. "Sigmoid" (exedrae or fountain-houses, such as the Olympic) 4b. Rectilinear 4c. Row of niches. This one had substructures, statues, and ornately patterned stonework; its main purpose, however, was functional. It received water from the aqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Archaeological Institute At Athens
The German Archaeological Institute at Athens (german: Deutsches Archäologisches Institut (DAI), Abteilung Athen; el, Γερμανικό Αρχαιολογικό Ινστιτούτο Αθηνών) is one of the 19 foreign archaeological institutes operating in Athens, Greece. General information, history, facilities The Athens department was the second department founded by the institute (after Rome) in 1874 and it is the second foreign institute in Athens (after the École Française d’Athènes). Part of the institute was established on May 17, 1872, and inaugurated on December 9th, 1874. The construction of the building in which it is housed was funded by Heinrich Schliemann; the plans were made by Ernst Ziller and Wilhelm Dörpfeld. Today, it is one of several specialised departments that make up the German Archaeological Institute. With an ongoing research programme, an 80,000-volume library and a large photographic archive, the German Archaeological Institute at Athen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julio-Claudian Dynasty
, native_name_lang=Latin, coat of arms=Great_Cameo_of_France-removebg.png, image_size=260px, caption= The Great Cameo of France depicting emperors Augustus, Tiberius, Claudius and Nero, type= Ancient Roman dynasty, country= Roman Empire, estates=* Imperial Palaces of the Palatine Hill * House of Augustus * Villa of Livia * Gardens of Maecenas * ''Domus Aurea'' * ''Domus Transitoria'' * Villa of Nero * ''Villa Jovis'', parent house=, titles= Roman emperor Pharaoh of Egypt Prince of the Senate Greatest Priest of Rome Father of the Country , styles=" Imperator""Caesar""Augustus", founded=, founder=Augustus, final ruler=Nero, other_families=, deposition= (deposed by Galba), ethnicity= Ancient Roman, religion=Roman Religion Imperial cult The Julio-Claudian dynasty comprised the first five Roman emperors: Augustus, Tiberius, Caligula, Claudius, and Nero. This line of emperors ruled the Roman Empire, from its formation (under Augustus, in 27 BC) until the last of the line, empe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfeios
The Alfeiós or Alpheios ( el, Αλφειός, grc, Ἀλφειός, Latin Alpheus) is the main stream of the Alpheios Valley drainage system, a dendritic type, originating on the north slopes of Mount Taygetus, located in the center of the Peloponnesus of Greece, and flowing to the northwest to the vicinity of Olympia, where it turns to the west and, after being impounded by the Flokas Dam, a hydroelectric facility, empties into the Gulf of Kyparissia of the Ionian Sea south of Pyrgos. The entrance into the gulf through agricultural land and across an unpopulated, sandy beach partially blocked by a spit is hydrologically unspectacular, with the water too shallow to be navigable by any but the smallest craft. The concept of a single source has little meaning for most of the rivers of Greece, which begin as a confluence of multiple springs in the mountain valleys. There is almost never just one, although most may be unreported or neglected. Thus it is appropriate to speak "a sourc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grade (slope)
The grade (also called slope, incline, gradient, mainfall, pitch or rise) of a physical feature, landform or constructed line refers to the tangent of the angle of that surface to the horizontal. It is a special case of the slope, where zero indicates horizontality. A larger number indicates higher or steeper degree of "tilt". Often slope is calculated as a ratio of "rise" to "run", or as a fraction ("rise over run") in which ''run'' is the horizontal distance (not the distance along the slope) and ''rise'' is the vertical distance. Slopes of existing physical features such as canyons and hillsides, stream and river banks and beds are often described as grades, but typically grades are used for human-made surfaces such as roads, landscape grading, roof pitches, railroads, aqueducts, and pedestrian or bicycle routes. The grade may refer to the longitudinal slope or the perpendicular cross slope. Nomenclature There are several ways to express slope: # as an ''angle'' of inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aqueduct (water Supply)
An aqueduct is a watercourse constructed to carry water from a source to a distribution point far away. In modern engineering, the term ''aqueduct'' is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose. The term ''aqueduct'' also often refers specifically to a bridge carrying an artificial watercourse. Aqueducts were used in ancient Greece, ancient Egypt, and ancient Rome. The simplest aqueducts are small ditches cut into the earth. Much larger channels may be used in modern aqueducts. Aqueducts sometimes run for some or all of their path through tunnels constructed underground. Modern aqueducts may also use pipelines. Historically, agricultural societies have constructed aqueducts to irrigate crops and supply large cities with drinking water. Etymology The word ''aqueduct'' is derived from the Latin words (''water'') and (''led'' or ''guided''). Ancient aqueducts Although particularly associated with the Romans, aqueducts we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nymphaeum Of Herodes Atticus (Olympia)
A ''nymphaeum'' or ''nymphaion'' ( grc, νυμφαῖον), in ancient Greece and Rome, was a monument consecrated to the nymphs, especially those of springs. These monuments were originally natural grottoes, which tradition assigned as habitations to the local nymphs. They were sometimes so arranged as to furnish a supply of water, as at Pamphylian Side. A nymphaeum dedicated to a local water nymph, Coventina, was built along Hadrian's Wall, in the northernmost reach of the Roman Empire. Subsequently, artificial grottoes took the place of natural ones. Roman period The nymphaeum in Jerash, Jordan (''illustration, above right''), was constructed in 191 AD. The fountain was originally embellished with marble facing on the lower level, painted plaster on the upper level, and topped with a half-dome roof, forming a giant niche. Water cascaded through seven carved lion's heads into small basins on the sidewalk. The nymphaea of the Roman period, which extended the sacral us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potential Energy
In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors. Common types of potential energy include the gravitational potential energy of an object, the elastic potential energy of an extended spring, and the electric potential energy of an electric charge in an electric field. The unit for energy in the International System of Units (SI) is the joule, which has the symbol J. The term ''potential energy'' was introduced by the 19th-century Scottish engineer and physicist William Rankine, although it has links to Greek philosopher Aristotle's concept of potentiality. Potential energy is associated with forces that act on a body in a way that the total work done by these forces on the body depends only on the initial and final positions of the body in space. These forces, that are called ''conservative forces'', can be represented at every point in space by vec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycenae
Mycenae ( ; grc, Μυκῆναι or , ''Mykē̂nai'' or ''Mykḗnē'') is an archaeological site near Mykines in Argolis, north-eastern Peloponnese, Greece. It is located about south-west of Athens; north of Argos; and south of Corinth. The site is inland from the Saronic Gulf and built upon a hill rising above sea level. In the second millennium BC, Mycenae was one of the major centres of Greek civilization, a military stronghold which dominated much of southern Greece, Crete, the Cyclades and parts of southwest Anatolia. The period of Greek history from about 1600 BC to about 1100 BC is called Mycenaean in reference to Mycenae. At its peak in 1350 BC, the citadel and lower town had a population of 30,000 and an area of 32 hectares. The first correct identification of Mycenae in modern literature was during a survey conducted by Francesco Grimani, commissioned by the Provveditore Generale of the Kingdom of the Morea in 1700, who used Pausanias's description of the Lio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity Feed
Gravity feed is the use of earth's gravity to move something (usually a liquid) from one place to another. It is a simple means of moving a liquid without the use of a pump. A common application is the supply of fuel to an internal combustion engine by placing the fuel tank above the engine, e.g. in motorcycles, lawn mowers, etc. A non-liquid application is the carton flow shelving system. Ancient Roman aqueducts were gravity-fed, as water supply systems to remote villages in developing countries often are. In this case the flow of water to the village is provided by the hydraulic head, the vertical distance from the intake at the source to the outflow in the village, on which gravity acts; while it is opposed by the friction in the pipe which is determined primarily by the length and diameter of the pipe as well as by its age and the material of which it is made. See also * Siphon A siphon (from grc, σίφων, síphōn, "pipe, tube", also spelled nonetymologically syph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herodes Atticus Louvre Ma1164 N5
Herod may refer to: People of the Herodian dynasty * Herod the Great (born c. 74 BC, ruled 37–4 BC or 1 BC), client king of Judea who expanded the Second Temple in Jerusalem and in the New Testament orders the Massacre of the Innocents * Herod Archelaus (23 BC–c. AD 18, ruled 4 BC–AD 6), ethnarch of Samaria, Judea, and Idumea * Herod Antipas (born 21 BC, ruled 4 BC–AD 39), tetrarch of Galilee and Peraea and in the New Testament orders the death of John the Baptist and mocks Jesus * Philip the Tetrarch or Herod Philip II, (born c. 20 BC, ruled 4 BC–AD 34), tetrarch of Iturea, Trachonitis, and Batanaea * Herod II or Herod Philip I (c. 27 BC–33 AD), father of the Salome in Mark 6:21-29, did not rule over any territory * Herod Agrippa (born c. 11 BC, ruled AD 41–44), client king of Judaea, called "King Herod" or "Herod" in Acts 12 of the New Testament * Herod of Chalcis (died AD 48), also known as Herod II or Herod V, king of Chalcis (r. AD 41–48) * Herod Agrippa II (born ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hard Water
Hard water is water that has high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum, which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates. Hard drinking water may have moderate health benefits. It can pose critical problems in industrial settings, where water hardness is monitored to avoid costly breakdowns in boilers, cooling towers, and other equipment that handles water. In domestic settings, hard water is often indicated by a lack of foam formation when soap is agitated in water, and by the formation of limescale in kettles and water heaters.World Health OrganizatioHardness in Drinking-Water 2003 Wherever water hardness is a concern, water softening is commonly used to reduce hard water's adverse effects. Origins Natural rainwater, snow and other forms of precipitation typically have low concentrations of multivalent cations such as calcium and magnes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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