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Eleutherna Bridge
The Eleutherna Bridge is an ancient Greek corbel arch bridge near the Cretan town of Eleutherna, Greece. A similar second bridge standing a short distance south of it collapsed toward the end of the 19th century, with only very few traces remaining. Description The well-preserved structure has a single span of 3.95 m, which is quite large for a false arch. The opening is cut from the unmortared limestone blocks in the shape of an isosceles triangle, the height of which is 1.84 m. The overall length of the bridge measures 9.35 m. Its width varies from 5.1 to 5.2 m, with the structure converging slightly towards its center point above the arch (5.05 m width there). The height is between 4 and 4.2 m. History The bridge, which is still in use, was first described by the Englishman T.A.B. Spratt in his ''Travels and Researches in Crete'', after he had paid a visit to the site in 1853. At the time, another ancient bridge with a triangular arch was still stan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eleutherna
Eleutherna ( grc-gre, Ἐλεύθερνα), also called Apollonia ( grc-gre, Ἀπολλωνία), was an ancient city-state in Crete, Greece, which lies 25 km southeast of Rethymno in Rethymno regional unit. Archaeologists excavated the site, located on a narrow northern spur of Mount Ida, the highest mountain in Crete. The site is about 1 km south of modern town of Eleftherna, about 8 km north east of Moni Arkadiou, in the current municipality of Rethymno. It flourished from the Dark Ages of Greece’s early history until Byzantine times. History In the systematic Eleutherna project, a team of archaeologists from the University of Crete led by Prof. N. Stampolidis has been in charge since 1984. Surveys and systematic excavations have revealed the city's settlement patterns, sanctuaries and necropoleis in ''Orthi Petra'', even stone quarries in the surroundings of the ''Prines'' hill. The discovery of the remains of four females in Orthi Petra was declared on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stone Bridges In Greece
In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy. It may be limited to rocks found on Earth, or it may include planetary geology that studies the rocks of other celestial objects. Rocks are usually grouped into three main groups: igneous rocks, sedimentary rocks and metamorphic rocks. Igneous rocks are formed when magma cools in the Earth's crust, or lava cools on the ground surface or the seabed. Sedimentary rocks are formed by diagenesis and lithification of sediments, which in turn are formed by the weathering, transport, and deposition of existing ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corbel Arch Bridges
In architecture, a corbel is a structural piece of stone, wood or metal jutting from a wall to carry a superincumbent weight, a type of bracket. A corbel is a solid piece of material in the wall, whereas a console is a piece applied to the structure. A piece of timber projecting in the same way was called a "tassel" or a "bragger" in England. The technique of corbelling, where rows of corbels deeply keyed inside a wall support a projecting wall or parapet, has been used since Neolithic (New Stone Age) times. It is common in medieval architecture and in the Scottish baronial style as well as in the vocabulary of classical architecture, such as the modillions of a Corinthian cornice. The corbel arch and corbel vault use the technique systematically to make openings in walls and to form ceilings. These are found in the early architecture of most cultures, from Eurasia to Pre-Columbian architecture. A console is more specifically an "S"-shaped scroll bracket in the classical t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Bridges In Greece
Ancient history is a time period from the beginning of writing and recorded human history to as far as late antiquity. The span of recorded history is roughly 5,000 years, beginning with the Sumerian cuneiform script. Ancient history covers all continents inhabited by humans in the period 3000 BCAD 500. The three-age system periodizes ancient history into the Stone Age, the Bronze Age, and the Iron Age, with recorded history generally considered to begin with the Bronze Age. The start and end of the three ages varies between world regions. In many regions the Bronze Age is generally considered to begin a few centuries prior to 3000 BC, while the end of the Iron Age varies from the early first millennium BC in some regions to the late first millennium AD in others. During the time period of ancient history, the world population was already exponentially increasing due to the Neolithic Revolution, which was in full progress. While in 10,000 BC, the world population stood at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Roman Bridges
This is a list of Roman bridges. The Romans were the world's first major bridge builders. The following list constitutes an attempt to list all known surviving remains of Roman bridges. A Roman bridge in the sense of this article includes any of these features: *Roman arches *Roman pillars *Roman foundations *Roman abutments *Roman roadway *Roman cutwaters Also listed are bridges which feature substantially Roman material (spolia), as long as the later bridge is erected on the site of a Roman precursor. Finally, incidences where only inscriptions lay testimony to a former Roman bridge are also included. In the following, bridges are classified either according to their material or their function. Most data not otherwise marked come from O’Connor's ''Roman Bridges'', which lists 330 stone bridges for traffic, 34 timber bridges and 54 aqueduct bridges. An even larger compilation of more than 900 Roman bridges (as of 2011) is offered by the Italian scholar Galliazzo, who is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classical Greece
Classical Greece was a period of around 200 years (the 5th and 4th centuries BC) in Ancient Greece,The "Classical Age" is "the modern designation of the period from about 500 B.C. to the death of Alexander the Great in 323 B.C." ( Thomas R. Martin, ''Ancient Greece'', Yale University Press, 1996, p. 94). marked by much of the eastern Aegean and northern regions of Greek culture (such as Ionia and Macedonia) gaining increased autonomy from the Persian Empire; the peak flourishing of democratic Athens; the First and Second Peloponnesian Wars; the Spartan and then Theban hegemonies; and the expansion of Macedonia under Philip II. Much of the early defining politics, artistic thought (architecture, sculpture), scientific thought, theatre, literature and philosophy of Western civilization derives from this period of Greek history, which had a powerful influence on the later Roman Empire. The Classical era ended after Philip II's unification of most of the Greek world against th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Greece
Greece in the Roman era describes the Roman conquest of Greece, as well as the period of Greek history when Greece was dominated first by the Roman Republic and then by the Roman Empire. The Roman era of Greek history began with the Corinthian defeat in the Battle of Corinth in 146 BC. However, before the Achaean War, the Roman Republic had been steadily gaining control of mainland Greece by defeating the Kingdom of Macedon in a series of conflicts known as the Macedonian Wars. The Fourth Macedonian War ended at the Battle of Pydna in 148 BC with the defeat of the Macedonian royal pretender Andriscus. The definitive Roman occupation of the Greek world was established after the Battle of Actium (31 BC), in which Augustus defeated Cleopatra VII, the Greek Ptolemaic queen of Egypt, and the Roman general Mark Antony, and afterwards conquered Alexandria (30 BC), the last great city of Hellenistic Egypt. The Roman era of Greek history continued with Emperor Constantine the Great's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Abel Brimage Spratt
Thomas Abel Brimage Spratt (11 May 181112 March 1888) was an English vice-admiral, hydrographer, and geologist. Life Thomas Spratt was born at Woodway House, East Teignmouth, the eldest son of Commander James Spratt, RN, who was a hero of the Battle of Trafalgar. He joined the Royal Navy at age 16 in 1827 and was attached to the surveying branch on HMS ''Victory''. He was engaged almost continuously until 1863 in surveying the Mediterranean. He received his early training in surveying from Thomas Graves in HMS ''Mastiff'' and . He was promoted to Lieutenant in 1841 and his first command was the converted sixth-rate . He then succeeded Graves as commander of the HMS ''Spitfire''. He rendered distinguished service in the Black Sea during the Crimean War, planning the attacks on Kertch and Kinburn. He was promoted to captain in 1855, and was appointed Companion of the Order of the Bath in the same year. He was then given command of in which ship he continued survey ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isosceles Triangle
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] |
Mortar (masonry)
Mortar is a workable paste which hardens to bind building blocks such as stones, bricks, and concrete masonry units, to fill and seal the irregular gaps between them, spread the weight of them evenly, and sometimes to add decorative colors or patterns to masonry walls. In its broadest sense, mortar includes pitch, asphalt, and soft mud or clay, as those used between mud bricks, as well as cement mortar. The word "mortar" comes from Old French ''mortier'', "builder's mortar, plaster; bowl for mixing." (13c.). Cement mortar becomes hard when it cures, resulting in a rigid aggregate structure; however, the mortar functions as a weaker component than the building blocks and serves as the sacrificial element in the masonry, because mortar is easier and less expensive to repair than the building blocks. Bricklayers typically make mortars using a mixture of sand, a binder, and water. The most common binder since the early 20th century is Portland cement, but the ancient binder lim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prines (Rethymno), Greece
Prines ( el, Πρινές) is a local community of the municipality of Rethymno within Rethymno regional unit, Crete, Greece. Before the "Kallikratis Project" it belonged to the municipality of Nikiforos Fokas (Νικηφόρος Φωκάς). It lies 5 km W-SW of the town of Rethymno and consists of the village Prines, with 851 inhabitants and the settlement Vederoi with 33 inhabitants (2011 census). Together, the two settlements have been classified as "preservable traditional settlements" thus retaining their traditional style and character. Before World War II, Prines, was the capital of a commune consisting of the nearby villages Prines, Vederi and Gerani. Prines used to be an important place during the Venetian Venetian often means from or related to: * Venice, a city in Italy * Veneto, a region of Italy * Republic of Venice (697–1797), a historical nation in that area Venetian and the like may also refer to: * Venetian language, a Romance language s ... occupation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
