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Tunnel Of Eupalinos
The Tunnel of Eupalinos or Eupalinian aqueduct ( el, Ευπαλίνιον όρυγμα, translit=Efpalinion orygma) is a tunnel of length running through Mount Kastro in Samos, Greece, built in the 6th century BC to serve as an aqueduct. The tunnel is the second known tunnel in history which was excavated from both ends (, "having two openings"), and the first with a geometry-based approach in doing so. Today it is a popular tourist attraction. The tunnel is inscribed on the UNESCO World Heritage List along with the nearby Pythagoreion and Heraion of Samos, and it was designated as an International Historic Civil Engineering Landmark in 2017. Early history The Eupalinian aqueduct is described by Herodotus (''Histories'' 3.60), without whom it might not have been discovered: :I have dwelt longer upon the history of the Samians than I should otherwise have done, because they are responsible for three of the greatest building and engineering feats in the Greek world: the first i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samos Island
Samos (, also ; el, Σάμος ) is a Greek island in the eastern Aegean Sea, south of Chios, north of Patmos and the Dodecanese, and off the coast of western Turkey, from which it is separated by the -wide Mycale Strait. It is also a separate regional unit of the North Aegean region. In ancient times, Samos was an especially rich and powerful city-state, particularly known for its vineyards and wine production. It is home to Pythagoreion and the Heraion of Samos, a UNESCO World Heritage Site that includes the Eupalinian aqueduct, a marvel of ancient engineering. Samos is the birthplace of the Greek philosopher and mathematician Pythagoras, after whom the Pythagorean theorem is named, the philosophers Melissus of Samos and Epicurus, and the astronomer Aristarchus of Samos, the first known individual to propose that the Earth revolves around the sun. Samian wine was well known in antiquity and is still produced on the island. The island was governed by the semi-auton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geomori (Samos)
The Geomori ( grc, Γεωμόροι, 'land-sharers') were a group of wealthy aristocrats who ruled Samos as an oligarchy in the seventh or sixth century BC. They remained an important political group on Samos into the fifth century BC. History Rise and fall The main source for the rule of the Geomori is a passage in the ''Greek Questions'', written by the philosopher Plutarch, in which he attempts to explain the name of a banqueting hall in Samos. Although Plutarch lived in the Roman Imperial period, he had access to earlier sources, such as Aristotle and Duris and may be reliable. According to Plutarch, the Geomori murdered the last king of Samos, Demoteles, and established an oligarchy. The date of this event is uncertain - it must fall after the reign of Amphicrates (fl. 700 or 600 BC). The name of the group, 'land-sharers', is one associated with aristocratic groups in Athens and Syracuse in the same period, so they are usually interpreted as a group of landed aristocrats. Ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Fabricius
Ernst Christian Andreas Martin Fabricius (Darmstadt, 6 September 1857 – Freiburg im Breisgau, 22 March 1942) was a German historian, archaeologist and classical scholar. Between 1882 and 1888 he participated in excavations in Greece and Asia Minor and also pioneered German research on the Roman Empire border defenses known as the Limes Germanicus. Biography Ernst Fabricius began his university studies in Strasbourg. In 1881 he received a doctorate in 'Comprehensive Greek Architecture' from the University of Bonn. His teachers included Adolf Michaelis, Rudolf Schöll, Heinrich Nissen and Hermann Usener. As a fellow of the German Archaeological Institute, along with geographer Heinrich Kiepert, he visited Italy, Greece and Asia Minor. In 1886, he was appointed professor of classical philology, archeology and ancient history at the University of Berlin. Subsequently, he participated in excavations in Greece and Asia Minor, specifically at Pergamon, Lesbos, Samos and Crete. Fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victor Guérin
Victor Guérin (15 September 1821 – 21 Septembe 1890) was a French intellectual, explorer and amateur archaeologist. He published books describing the geography, archeology and history of the areas he explored, which included Greece, Asia Minor, North Africa, Lebanon, Syria and Palestine. Biography Guérin, a devout Catholic, graduated from the ''École normale supérieure'' in Paris in 1840. After graduation, he began working as a teacher of rhetoric and member of faculty in various colleges and high schools in France, then in Algeria in 1850, and 1852 he became a member of the French School of Athens. While exploring Samos, he identified the spring that feeds the Tunnel of Eupalinos and the beginnings of the channel. His doctoral thesis of 1856 dealt with the coastal region of Palestine, from Khan Yunis to Mount Carmel. With the financial help of Honoré Théodoric d'Albert de Luynes he was able to explore Greece and its islands, Asia Minor, Egypt, Nubia, Tunisia, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
End Sign Eupalinian Aqueduct
End, END, Ending, or variation, may refer to: End *In mathematics: **End (category theory) ** End (topology) **End (graph theory) ** End (group theory) (a subcase of the previous) **End (endomorphism) *In sports and games **End (gridiron football) **End, a division of play in the sports of curling, target archery and pétanque **End (dominoes), one of the halves of the face of a domino tile *In entertainment: **End (band) an American hardcore punk supergroup formed in 2017. **End key on a modern computer keyboard **End Records, a record label **"End", a song by The Cure from '' Wish'' ** Ends (song) (1998 song) song by Everlast, off the album ''Whitey Ford Sings the Blues'' *In other areas: **End, in weaving, a single thread of the warp **''Ends (short story collection)'' (1988 book) anthology of Gordon R. Dickson stories END * European Nuclear Disarmament * Endoglin, a glycoprotein * Equivalent narcotic depth, a concept used in underwater diving * Environmental noise directive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupalinos Vertical
Eupalinos ( grc, Εὐπαλῖνος) or Eupalinus of Megara was an ancient Greek engineer who built the Tunnel of Eupalinos on Samos Island in the 6th century BC. The tunnel, presumably completed between 550 and 530 BC, is the second known tunnel in history which was excavated from both ends and the first with a methodical approach in doing so. Being also the longest tunnel of its time, the Tunnel of Eupalinos is regarded as a major feat of ancient engineering. It was constructed for the tyrant Polycrates of Samos, and was a remarkable long. It brought water to the city, passing through limestone at the base of a hill; this tunnel still exists. The Greek historian Herodotus describes the tunnel briefly in his ''Histories'' (3.60) and calls Eupalinos of Megara its architect: Eupalinos is considered the first hydraulic engineer in history whose name has been passed down. Apart from that, though, nothing more is known about him.Tom Apostol, p.33 A large road tunnel, named afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupalinos Horizontal
Eupalinos ( grc, Εὐπαλῖνος) or Eupalinus of Megara was an ancient Greek engineer who built the Tunnel of Eupalinos on Samos Island in the 6th century BC. The tunnel, presumably completed between 550 and 530 BC, is the second known tunnel in history which was excavated from both ends and the first with a methodical approach in doing so. Being also the longest tunnel of its time, the Tunnel of Eupalinos is regarded as a major feat of ancient engineering. It was constructed for the tyrant Polycrates of Samos, and was a remarkable long. It brought water to the city, passing through limestone at the base of a hill; this tunnel still exists. The Greek historian Herodotus describes the tunnel briefly in his ''Histories'' (3.60) and calls Eupalinos of Megara its architect: Eupalinos is considered the first hydraulic engineer in history whose name has been passed down. Apart from that, though, nothing more is known about him.Tom Apostol, p.33 A large road tunnel, named afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euclid
Euclid (; grc-gre, Εὐκλείδης; BC) was an ancient Greek mathematician active as a geometer and logician. Considered the "father of geometry", he is chiefly known for the '' Elements'' treatise, which established the foundations of geometry that largely dominated the field until the early 19th century. His system, now referred to as Euclidean geometry, involved new innovations in combination with a synthesis of theories from earlier Greek mathematicians, including Eudoxus of Cnidus, Hippocrates of Chios, Thales and Theaetetus. With Archimedes and Apollonius of Perga, Euclid is generally considered among the greatest mathematicians of antiquity, and one of the most influential in the history of mathematics. Very little is known of Euclid's life, and most information comes from the philosophers Proclus and Pappus of Alexandria many centuries later. Until the early Renaissance he was often mistaken for the earlier philosopher Euclid of Megara, causing his biogra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geometry
Geometry (; ) is, with arithmetic, one of the oldest branches of mathematics. It is concerned with properties of space such as the distance, shape, size, and relative position of figures. A mathematician who works in the field of geometry is called a '' geometer''. Until the 19th century, geometry was almost exclusively devoted to Euclidean geometry, which includes the notions of point, line, plane, distance, angle, surface, and curve, as fundamental concepts. During the 19th century several discoveries enlarged dramatically the scope of geometry. One of the oldest such discoveries is Carl Friedrich Gauss' ("remarkable theorem") that asserts roughly that the Gaussian curvature of a surface is independent from any specific embedding in a Euclidean space. This implies that surfaces can be studied ''intrinsically'', that is, as stand-alone spaces, and has been expanded into the theory of manifolds and Riemannian geometry. Later in the 19th century, it appeared that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isosceles
In geometry, an isosceles triangle () is a triangle that has two sides of equal length. Sometimes it is specified as having ''exactly'' two sides of equal length, and sometimes as having ''at least'' two sides of equal length, the latter version thus including the equilateral triangle as a special case. Examples of isosceles triangles include the isosceles right triangle, the golden triangle, and the faces of bipyramids and certain Catalan solids. The mathematical study of isosceles triangles dates back to ancient Egyptian mathematics and Babylonian mathematics. Isosceles triangles have been used as decoration from even earlier times, and appear frequently in architecture and design, for instance in the pediments and gables of buildings. The two equal sides are called the legs and the third side is called the base of the triangle. The other dimensions of the triangle, such as its height, area, and perimeter, can be calculated by simple formulas from the lengths of the legs an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrel Vault
A barrel vault, also known as a tunnel vault, wagon vault or wagonhead vault, is an architectural element formed by the extrusion of a single curve (or pair of curves, in the case of a pointed barrel vault) along a given distance. The curves are typically circular in shape, lending a semi-cylindrical appearance to the total design. The barrel vault is the simplest form of a vault: effectively a series of arches placed side by side (i.e., one after another). It is a form of barrel roof. As with all arch-based constructions, there is an outward thrust generated against the walls underneath a barrel vault. There are several mechanisms for absorbing this thrust. One is to make the walls exceedingly thick and strong – this is a primitive and sometimes unacceptable method. A more elegant method is to build two or more vaults parallel to each other; the forces of their outward thrusts will thus negate each other. This method was most often used in construction of churches, where s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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