Misplaced Pages

#175824

115-468: The 2,380-metre-long (7,810 ft; 1.48 mi) bridge dramatically improves access to and from the Peloponnese , which could previously be reached only by ferry or via the isthmus of Corinth in the east. Its width is 28 m (92 ft)—it has two vehicle lanes per direction, an emergency lane and a pedestrian walkway. Its five-span four-pylon cable-stayed portion of length 2,252 m (7,388 ft)

230-422: A "two-tube" shock absorber, this device consists of two nested cylindrical tubes, an inner tube that is called the "working tube" or the "pressure tube", and an outer tube called the "reserve tube". At the bottom of the device on the inside is a compression valve or base valve. When the piston is forced up or down by bumps in the road, hydraulic fluid moves between different chambers via small holes or "orifices" in

345-456: A PSD shock absorber, which still consists of two nested tubes and still contains nitrogen gas, a set of grooves has been added to the pressure tube. These grooves allow the piston to move relatively freely in the middle range of travel (i.e., the most common street or highway use, called by engineers the "comfort zone") and to move with significantly less freedom in response to shifts to more irregular surfaces when upward and downward movement of

460-497: A brief time by a Catalan corsair. When the population drove him out, they obtained the consent of Thomas to submit to the Pope's protection before the end of 1460. The Mani Peninsula at the south end of the Morea resisted under a loose coalition of the local clans, and that area then came under Venice 's rule. The last holdout was Salmeniko , in the Morea's northwest. Graitzas Palaiologos was

575-539: A commission at Andravida consisted of Latin bishops, two bannerets and five Greek magnates and chaired by himself, to assess the land and divide it, according to Latin practice, in fiefs . The result was divide the country into twelve baronies , mostly centred around a newly constructed castle—a testament to the fact that the Franks were a military elite amidst a potentially hostile Greek population. The twelve temporal barons were joined by seven ecclesiastic lords, headed by

690-551: A complete disappearance of the "comfort vs. control" tradeoff, it also reduced pitch during vehicle braking and roll during turns. However, ASD shocks are usually only available as aftermarket changes to a vehicle and are only available from a limited number of manufacturers. Coilover shock absorbers are usually a kind of twin-tube gas charged shock absorber inside the helical road spring. They are common on motorcycles and scooter rear suspensions, and widely used on front and rear suspensions in cars. The principal design alternative to

805-502: A compression valve, whose role has been taken up by the dividing piston, and although it contains nitrogen gas, the gas in a mono-tube shock is under high pressure (260-360 p.s.i. or so) which can actually help it to support some of the vehicle's weight, something which no other shock absorber is designed to do. Mercedes became the first auto manufacturer to install mono-tube shocks as standard equipment on some of their cars starting in 1958. They were manufactured by Bilstein , patented

920-444: A correspondingly effective shock. The next phase in shock absorber evolution was the development of a shock absorber that could sense and respond to not just situational changes from "bumpy" to "smooth" but to individual bumps in the road in a near instantaneous reaction. This was achieved through a change in the design of the compression valve, and has been termed "acceleration sensitive damping" or "ASD". Not only does this result in

1035-467: A great future for racing due to its light weight and easy fitment. One of the earliest hydraulic dampers to go into production was the Telesco Shock Absorber, exhibited at the 1912 Olympia Motor Show and marketed by Polyrhoe Carburettors Ltd. This contained a spring inside the telescopic unit like the pure spring type 'shock absorbers' mentioned above, but also oil and an internal valve so that

1150-566: A personal fief of the Villehardouins. The barons retained considerable powers and privileges, so that the Prince was not an absolute sovereign but rather a "first among equals" among them. Thus they had the right to construct a castle without the Prince's permission, or to decree capital punishment . Since Salic Law was not adopted in Achaea, women could also inherit the fiefs. Frankish supremacy in

1265-659: A prisoner of the Ottomans and his younger brother Thomas fled. By the end of the summer the Ottomans had achieved the submission of virtually all cities possessed by the Greeks . Ottoman incursions into the Morea resumed under Turahan Bey after 1423. Despite the reconstruction of the Hexamilion wall at the Isthmus of Corinth, the Ottomans under Murad II breached it in 1446, forcing the Despots of

SECTION 10

#1733084773176

1380-486: A shock absorber, is where that energy will go. In most shock absorbers, energy is converted to heat inside the viscous fluid. In hydraulic cylinders , the hydraulic fluid heats up, while in air cylinders , the hot air is usually exhausted to the atmosphere. In other types of shock absorbers, such as electromagnetic types, the dissipated energy can be stored and used later. In general terms, shock absorbers help cushion vehicles on uneven roads and keep wheels in contact with

1495-505: A turning point. Rivalries among the insurgents eventually erupted into civil war in 1824, which enabled the Ottoman Egyptian vassal Ibrahim Pasha to land in the peninsula in 1825. The Peloponnese peninsula was the scene of fierce fighting and extensive devastation following the arrival of Ibrahim's Egyptian troops. Partly as a result of the atrocities committed by Ibrahim, the UK, France, and

1610-598: A white wine made from Moschofilero , the Nemea wine region makes renowned red wines from the Agiorgitiko grape, and fortified red wine is made in the region around the city of Patras from Mavrodafni grapes. 37°20′59″N 22°21′08″E  /  37.34972°N 22.35222°E  / 37.34972; 22.35222 Shock absorber A shock absorber or damper is a mechanical or hydraulic device designed to absorb and damp shock impulses. It does this by converting

1725-462: A wind tunnel where 70 miles per hour (110 km/h) winds are common. For these reasons, special design and construction techniques were applied. Beneath each pier the seabed was first reinforced and stabilized by driving 200 hollow steel pipes vertically into the ground. The pier footings were not buried into the seabed, but rather rest on a bed of gravel meticulously leveled to an even surface (a difficult endeavor at this depth). During an earthquake,

1840-726: Is a peninsula and geographic region in Southern Greece , and the southernmost region of the Balkans . It is connected to the central part of the country by the Isthmus of Corinth land bridge which separates the Gulf of Corinth from the Saronic Gulf . From the late Middle Ages until the 19th century, the peninsula was known as the Morea , a name still in colloquial use in its demotic form. The peninsula

1955-404: Is a dramatic reduction in "foaming" or "aeration", the undesirable outcome of a twin-tube overheating and failing which presents as foaming hydraulic fluid dripping out of the assembly. Twin-tube gas charged shock absorbers represent the vast majority of original modern vehicle suspension installations. Often abbreviated simply as "PSD", this design is another evolution of the twin-tube shock. In

2070-419: Is a hydraulic shock absorber, which usually includes a piston, a cylinder, and an oil-filled chamber. The piston is connected to the piston rod, which extends into the cylinder and divides the cylinder into two parts. One chamber is filled with hydraulic oil, while the other chamber contains compressed oil or air. When there is an accident or vibration in the vehicle, the piston moves into the cylinder, forcing

2185-508: Is compatible with electronic control. Primary among benefits cited in Multimatic ’s 2010 patent filing is the elimination of performance ambiguity associated with flexible shims, resulting in mathematically predictable, repeatable, and robust pressure-flow characteristics. An extra tube or container of oil connected to the oil compartment of the (main) shock via a flexible pipe (remote reservoir) or inflexible pipe (piggy-back shock). Increases

2300-400: Is constantly evolving due to the continuous improvement of vehicle dynamics and passenger comfort. In common with carriages and railway locomotives, most early motor vehicles used leaf springs . One of the features of these springs was that the friction between the leaves offered a degree of damping, and in a 1912 review of vehicle suspension, the lack of this characteristic in helical springs

2415-480: Is divided among three administrative regions : most belongs to the Peloponnese region, with smaller parts belonging to the West Greece and Attica regions. The Peloponnese is a peninsula located at the southern tip of the mainland, 21,549.6 square kilometres (8,320.3 sq mi) in area, and constitutes the southernmost part of mainland Greece. It is connected to the mainland by the Isthmus of Corinth , where

SECTION 20

#1733084773176

2530-502: Is headed by a city. The largest city is Patras (pop. 170,000) in Achaia, followed by Kalamata (pop. 55,000) in Messenia. Peloponnese for the most part enjoys a hot-summer Mediterranean climate ( Köppen climate classification : Csa ), while the Gulf of Corinth has a hot semi-arid climate ( Köppen climate classification : BSh ). Rainfall is higher in the west coasts, while the east of

2645-574: Is the world's third longest cable-stayed deck; only the decks of the Jiaxing-Shaoxing Sea Bridge in Shaoxing , China and the Millau Viaduct in southern France are longer at 2,680 m (8,790 ft) and 2,460 m (8,071 ft), respectively. However, as the former has a shorter length of main span (the length of the main span is the most common way to rank cable-stayed bridges, as

2760-614: The Chronicle of Monemvasia , in 805 the Byzantine governor of Corinth went to war with the Slavs, exterminated them, and allowed the original inhabitants to claim their lands. They regained control of the city of Patras and the region was re-settled with Greeks. Many Slavs were transported to Asia Minor , and many Asian, Sicilian and Calabrian Greeks were resettled in the Peloponnese. By the turn of

2875-514: The Corinth Canal was constructed in 1893. However, it is also connected to the mainland by several bridges across the canal, including two submersible bridges at the north and the south end. Near the northern tip of the peninsula, there is another bridge, the Rio–Antirrio bridge (completed 2004). The peninsula has a mountainous interior, although extensive lowlands are also found in the west, in

2990-747: The Evrotas Valley in the south, and in the Argolid Peninsula in the northeast. The Peloponnese possesses four south-pointing peninsulas, the Messenian , the Mani , the Cape Malea (also known as Epidaurus Limera), and the Argolid in the far northeast of the Peloponnese. Mount Taygetus in the south is the highest mountain in the Peloponnese, at 2,407 metres (7,897 ft). Οther important mountains include Cyllene in

3105-482: The Isthmus of Corinth . His attack opened the peninsula to invasion, though Murad died before he could exploit this. His successor Mehmed II "the Conqueror" captured the Byzantine capital Constantinople in 1453. The despots, Demetrios Palaiologos and Thomas Palaiologos , brothers of the last emperor, failed to send him any aid, as Morea was recovering from a recent Ottoman attack. Their own incompetence resulted in

3220-623: The Latin Archbishop of Patras . Each of the latter was granted a number of estates as knightly fiefs, with the Archbishop receiving eight, the other bishops four each, and likewise four granted to each of the military orders : the Templars , Hospitallers and the Teutonic Knights . Shortly after 1260, a thirteenth barony, that of Arcadia (modern Kyparissia ) was established, which was also

3335-626: The Morea revolt of 1453–1454 led by Manuel Kantakouzenos against them, during which they invited in Ottoman troops to help them put down the revolt. At this time, the Greek archons made peace with Mehmed. After more years of incompetent rule by the despots, their failure to pay their annual tribute to the Sultan, and finally their own revolt against Ottoman rule, Mehmed came into the Morea in May 1460. Demetrios ended up

3450-593: The Ottoman Turks on 31 May 1460, Mystras was the residence of a Despot who ruled over the Byzantine Morea, known as the " Despotate of the Morea ". For the larger portion of his reign, Manuel maintained peaceful relations with his Latin neighbors and secured a long period of prosperity for the area. Greco-Latin cooperation included an alliance to contain the raids of the Ottoman Sultan Murad I into Morea in

3565-628: The Roman period , the peninsula remained prosperous but became a provincial backwater, relatively cut off from the affairs of the wider Roman world . After the partition of the Empire in 395, the Peloponnese became a part of the East Roman or Byzantine Empire . The devastation of Alaric 's raid in 396–397 led to the construction of the Hexamilion wall across the Isthmus of Corinth. Through most of late antiquity ,

Rio–Antirrio Bridge - Misplaced Pages Continue

3680-503: The kinetic energy of the shock into another form of energy (typically heat ) which is then dissipated. Most shock absorbers are a form of dashpot (a damper which resists motion via viscous friction). Pneumatic and hydraulic shock absorbers are used in conjunction with cushions and springs. An automobile shock absorber contains spring-loaded check valves and orifices to control the flow of oil through an internal piston (see below). One design consideration, when designing or choosing

3795-513: The klephts ' activities. With the outbreak of the " Great Turkish War " in 1683, the Venetians under Francesco Morosini occupied the entire peninsula by 1687, and received recognition by the Ottomans in the Treaty of Karlowitz (1699). The Venetians established their province as the " Kingdom of the Morea " (It. Regno di Morea ), but their rule proved unpopular, and when the Ottomans invaded

3910-498: The 1360s. The rival Palaiologos dynasty seized the Morea after Manuel's death in 1380, with Theodore I Palaiologos becoming despot in 1383. Theodore I ruled until 1407, consolidating Byzantine rule and coming to terms with his more powerful neighbours—particularly the expansionist Ottoman Empire , whose suzerainty he recognised. Subsequent despots were the sons of the Emperor Manuel II Palaiologos , brother of

4025-520: The 9th century, the entire Peloponnese was formed into the new thema of Peloponnesos , with its capital at Corinth. The imposition of Byzantine rule over the Slavic enclaves may have largely been a process of Christianization and accommodation of Slavic chieftains into the Imperial fold, as literary, epigraphic and sigillographic evidence testify to Slavic archontes participating in Imperial affairs. By

4140-539: The Gabriel Snubber started being fitted in the late 1900s (also the similar Stromberg Anti-Shox). These used a belt coiled inside a device such that it freely wound in under the action of a coiled spring but met friction when drawn out. Gabriel Snubbers were fitted to an 11.9HP Arrol-Johnston car which broke the 6 hour Class B record at Brooklands in late 1912, and the Automator journal noted that this snubber might have

4255-639: The Hellenization campaign also shows that the Slavs had settled among many Greeks, in contrast to areas further north in what is now Bulgaria and the former Yugoslavia, as those areas could not be Hellenized when they were recovered by the Byzantines in the early 11th century. A human genetics study in 2017 showed that the Peloponnesians have little admixture with populations of the Slavic homeland and are much closer to Sicilians and southern Italians. Apart from

4370-501: The Morea to re-acknowledge Ottoman suzerainty, and again under Turahan in 1452 and 1456. Following the occupation of the Duchy of Athens in 1456, the Ottomans occupied a third of the Peloponnese in 1458, and Sultan Mehmed II extinguished the remnants of the Despotate in 1460. A few holdouts remained for a time. The rocky peninsula of Monemvasia refused to surrender, and it was first ruled for

4485-523: The Peloponnese rose against the Ottomans with Russian aid during the so-called " Orlov Revolt " of 1770, but it was swiftly and brutally suppressed by bands of Muslim Albanian mercenaries hired by the Ottomans. Referred to by the local Greek populace as " Turk-Albanians ", those forces had also destroyed many cities and towns in Epirus during the 1769–70 revolt there. The Peloponnese suffered more than any other Greek inhabited area by irregular Albanian gangs during

4600-652: The Peloponnese to continue their military service under the Republic of Venice or the Kingdom of Naples . At the end of the Ottoman–Venetian wars, a large number of Albanians had fled from the Peloponnese to Sicily. A demographic census by Alfred Philippson , based on fieldwork between 1887 and 1889, found that out of the approximately 730,000 inhabitants of the Peloponnese, and the three neighboring islands of Poros , Hydra and Spetses , Arvanites numbered 90,253, or 12.3% of

4715-523: The Peloponnese was at the heart of the affairs of ancient Greece , possessed some of its most powerful city-states, and was the location of some of its bloodiest battles. The major cities of Sparta , Corinth , Argos and Megalopolis were all located on the Peloponnese, and it was the homeland of the Peloponnesian League . Soldiers from the peninsula fought in the Persian Wars , and it was also

Rio–Antirrio Bridge - Misplaced Pages Continue

4830-548: The Peloponnesian Greek population. This is especially true in Mani and Tsakonia , where Slavic incursions were minimal, or non-existent. Being agriculturalists, the Slavs probably traded with the Greeks, who remained in the towns, while Greek villages continued to exist in the interior, governing themselves, possibly paying tribute to the Slavs. The first attempt by the Byzantine imperial government to re-assert its control over

4945-510: The Principality of Achaea were beaten back in the battles of Prinitsa and Makryplagi , but the Byzantines were firmly ensconced in Laconia. Warfare became endemic, and the Byzantines slowly pushed the Franks back. The insecurity engendered by the raids and counter-raids caused the inhabitants of Lacedaemon to abandon their exposed city and settle at Mystras, in a new town built under the shadow of

5060-519: The Russian Empire decided to intervene in favor of the Greeks. The decisive naval Battle of Navarino was fought in 1827 off Pylos on the west coast of the Peloponnese, where a combined British, French and Russian fleet decisively defeated the Turko-Egyptian fleet. Subsequently, a French expeditionary corps cleared the last Turko-Egyptian forces from the peninsula in 1828. The city of Nafplion, on

5175-437: The action of the auxiliary spring in the unit itself. The first production hydraulic dampers to act on the main leaf spring movement were probably those based on an original concept by Maurice Houdaille patented in 1908 and 1909. These used a lever arm which moved hydraulically damped vanes inside the unit. The main advantage over the friction disk dampers was that it would resist sudden movement but allow slow movement, whereas

5290-456: The arrival of Slavs to southern Greece to the late 6th century, according to Florin Curta there is no evidence for a Slavic presence in the Peloponnese until after c.  700 AD , when Slavs may have been allowed to settle in specific areas that had been depopulated. Relations between the Slavs and Greeks were probably peaceful apart from intermittent uprisings. There was also a continuity of

5405-538: The blue decorative lighting was announced by the company due to the ongoing electricity crisis in Europe but also to be in line with the company's environmental strategy. The bridge's carbon footprint has been reduced by 84.5% from 2015 to 2022. The lead architect was Berdj Mikaelian. Site preparation and dredging began in July 1998, and construction of the massive supporting pylons in 2000. With these complete in 2003, work began on

5520-505: The bridge returned to TV in an episode of Richard Hammond's Engineering Connections . In 2015, construction of the bridge was chronicled in the first episode of the Science Channel series Impossible Engineering . On 28 January 2005, six months after the opening of the bridge, one of the cable links of the bridge snapped from the top of the M1 pylon and came crashing down on the deck. Traffic

5635-573: The bridge. Protection from the effect of high winds on the decking is provided by the use of aerodynamic spoiler-like fairing and on the cables by the use of spiral Scruton strakes . The bridge received the 2006 Outstanding Structure Award from the International Association for Bridge and Structural Engineering . In 2006 the bridge was featured in an episode of Megastructures on the National Geographic Channel . In 2011

5750-501: The cars or the pedestrians using it. Peloponnese The Peloponnese ( / ˌ p ɛ l ə p ə ˈ n iː z , - ˈ n iː s / PEL -ə-pə- NEEZ , -⁠ NEESS ), Peloponnesus ( / ˌ p ɛ l ə p ə ˈ n iː s ə s / PEL -ə-pə- NEE -səs ; Greek : Πελοπόννησος , romanized :  Pelopónnēsos , IPA: [peloˈponisos] ) or Morea ( Medieval Greek : Μωρέας , romanized :  Mōrèas ; Greek: Μωριάς , romanized:  Mōriàs )

5865-466: The coast such as Navarino and Coron , which they retained into the 15th century. The Franks popularized the name Morea for the peninsula, which first appears as the name of a small bishopric in Elis during the 10th century. Its etymology is disputed, but it is most commonly held to be derived from the mulberry tree ( morea ), whose leaves are similar in shape to the peninsula. In 1208, William I founded

SECTION 50

#1733084773176

5980-699: The decades following. In Patras nearly no one was left alive after the Turkish-Albanian invasion. The city of Mystras was left in ruins and the metropolitan bishop Ananias was executed despite having saved the life of several Turks during the uprising. A great number of local Greeks were killed by the Albanian groups, while children were sold to slavery. It is estimated that 20,000 local Greeks were captured during those nine years of devastation by those Albanian mercenaries and sold to slave markets. Also an additional of 50,000 Greeks left Peloponesse: around one-sixth of

6095-414: The design and first appeared in 1954s. Because the design was patented, no other manufacturer could use it until 1971 when the patent expired. Spool valve dampers are characterized by the use of hollow cylindrical sleeves with machined-in oil passages as opposed to traditional conventional flexible discs or shims. Spool valving can be applied with monotube, twin-tube, or position-sensitive packaging, and

6210-482: The despot Theodore: Theodore II, Constantine, Demetrios, and Thomas. As Latin power in the Peloponnese waned during the 15th century, the Despotate of the Morea expanded to incorporate the entire peninsula in 1430 with territory being acquired by dowry settlements, and the conquest of Patras by Constantine. However, in 1446 the Ottoman Sultan Murad II destroyed the Byzantine defences—the Hexamilion wall at

6325-767: The destruction of the Byzantine Empire by the forces of the Fourth Crusade , the Crusaders under William of Champlitte and Geoffrey of Villehardouin marched south through mainland Greece and conquered the Peloponnese against sporadic local Greek resistance . The Franks then founded the Principality of Achaea , nominally a vassal of the Latin Empire , while the Venetians occupied several strategically important ports around

6440-420: The difficult site. These difficulties include deep water, insecure materials for foundations, seismic activity, the probability of tsunamis , and the expansion of the Gulf of Corinth due to plate tectonics . Charilaos Trikoupis was a 19th-century prime minister of Greece who suggested building a bridge in the current location, but Greece's finances at the time didn't permit its construction. The bridge

6555-406: The east coast of the peninsula, became the first capital of the independent Greek state . By the conclusion of the war, the entire Muslim population of the newly independent Greek state, including the Peloponnese, had been exterminated or had fled. During the 19th and early 20th centuries, the region became relatively poor and economically isolated. A significant part of its population emigrated to

6670-745: The east, and the Ionian to the west. The island of Kythira , off the Epidaurus Limeira peninsula to the south of the Peloponnese, is considered to be part of the Ionian Islands. The island of Elafonisos used to be part of the peninsula but was separated following the major quake of 365 AD . Since antiquity, and continuing to the present day, the Peloponnese has been divided into seven major regions: Achaea (north), Corinthia (northeast), Argolis (east), Arcadia (center), Laconia (southeast), Messenia (southwest), and Elis (west). Each of these regions

6785-448: The end of the 2nd millennium BC. Archeological research has found that many of its cities and palaces show signs of destruction. The subsequent period, known as the Greek Dark Ages , is marked by an absence of written records. In 776 BC, the first Olympic Games were held at Olympia , in the western Peloponnese and this date is sometimes used to denote the beginning of the classical period of Greek antiquity. During classical antiquity ,

6900-426: The end of the 9th century, the Peloponnese was culturally and administratively Greek again, except for a few small Slavic tribes in the mountains such as the Melingoi and Ezeritai . Although they were to remain relatively autonomous until Ottoman times, such tribes were the exception rather than the rule. Even the Melingoi and Ezeritai, however, could speak Greek and appear to have been Christian. The success of

7015-419: The energetic Evrenos Bey took control. Exploiting the quarrels between Byzantines and Franks, he plundered across the peninsula and forced both the Byzantine despots and the remaining Frankish rulers to acknowledge Ottoman suzerainty and pay tribute. This situation lasted until the Ottoman defeat at the Battle of Ankara in 1402, after which Ottoman power was for a time checked. From 1349 until its surrender to

SECTION 60

#1733084773176

7130-417: The fertile lands, Muslims remained a distinct minority. Christian communities retained a large measure of self-government, but the entire Ottoman period was marked by a flight of the Christian population from the plains to the mountains. This occasioned the rise of the klepht s, armed brigands and rebels, in the mountains, as well as the corresponding institution of the government-funded armatoloi to check

7245-406: The final cost was €839 million. The bridge was inaugurated on 7 August 2004, a week before the opening of the 2004 Summer Olympics in Athens . Olympic torchbearers were the first to officially cross it. One of them was Otto Rehhagel , the German football coach who won the Euro 2004 Championships for Greece . Another was Costas Laliotis, the former Minister of Public Works during whose term

7360-455: The fortress. While Mystras served as the provincial capital from this time, it became a royal capital in 1349, when the first despot was appointed to rule over the Morea. The Byzantine Emperor John VI Kantakouzenos , reorganized the territory in 1349 to establish it as an appanage for his son, the Despot Manuel Kantakouzenos . Around that time, the Ottoman Turks began raiding the Peloponnese, but their raids intensified only after 1387 when

7475-406: The fortresses. The Greek insurgents made rapid progress and the entire peninsula was under Greek control within a few months, except for a few coastal forts and the main Turkish garrison at Tripolitsa . The fighting was fierce and marked by atrocities on both sides; eventually the entire Muslim population was either massacred or fled to the forts. The capture of Tripolitsa in September 1821 marked

7590-410: The ground. In a vehicle, shock absorbers reduce the effect of traveling over rough ground, leading to improved ride quality and vehicle handling . While shock absorbers serve the purpose of limiting excessive suspension movement, their intended main purpose is to damp spring oscillations. Shock absorbers use valving of oil and gasses to absorb excess energy from the springs. Spring rates are chosen by

7705-421: The groundwork for the Greek War of Independence . The Peloponnesians played a major role in the Greek War of Independence – the war began in the Peloponnese, when rebels took control of Kalamata on March 23, 1821. After the arrival of Ypsilantis's emissaries, local people rose under the leadership of Mavromichalis . Greek and Albanian insurgents organised in units of armed civilians took control of most of

7820-524: The hydraulic fluid through small holes, creating resistance and dissipating energy in the form of heat. This dampens oscillations, reducing further bouncing or wobble of the car. Shock construction requires a balance of features such as piston design, fluid viscosity, and overall size of the unit to ensure performance. As technology developed, other types of shock absorbers emerged, including gas and electric shock absorbers, that provided improved control and flexibility. The design and manufacture of shock absorbers

7935-430: The hydraulic piston that absorbs and dissipates vibration. Now, composite suspension systems are used mainly in 2 wheelers and also leaf springs are made up of composite material in 4 wheelers. Shock absorbers are an important part of car suspension designed to increase comfort, stability and overall safety. The shock absorber, produced with precision and engineering skills, has many important features. The most common type

8050-422: The independent Slavic tribes of the Peloponnese occurred in 783, with the logothete Staurakios ' overland campaign from Constantinople into Greece and the Peloponnese, which according to Theophanes the Confessor made many prisoners and forced the Slavs to pay tribute. From the mid-9th century, following a Slavic revolt and attack on Patras , a determined Hellenization process was carried out. According to

8165-430: The invasion by those mercenary groups the local population had to found refuge in the mountains of Peloponnese to avoid persecution. The total population decreased during this time, while the Muslim element in it increased. As such Greek resistance in the peninsula was reinforced and powerful groups of klephts were formed under the clans of Zacharias, Melios, Petmezas and Kolokotronis. Klephtic songs of that era describe

8280-622: The larger cities of Greece, especially Athens , and other countries such as the United States and Australia. It was badly affected by the Second World War and Greek Civil War , experiencing some of the worst atrocities committed in Greece during those conflicts. Living standards improved dramatically throughout Greece after the country accedes to the European Union in 1981. The Corinth Canal

8395-575: The larger groups of Albanian settlers, amounting to 10,000, settled the Peloponnese during the reign of Theodore I Palaiologos , first in Arcadia and subsequently in other regions around Messenia , Argolis , Elis and Achaia . Around 1418, a second large group arrived, possibly fleeing Aetolia , Acarnania and Arta , where Albanian political power had been defeated. The settling Albanians lived in tribes spread out into small villages, practicing nomadic lifestyles based on pastoralism and animal husbandry. By

8510-604: The last Venetian possessions on the Greek mainland were lost. Following the Ottoman conquest, the peninsula was made into a province ( sanjak ), with 109 ziamets and 342 timars . During the first period of Ottoman rule (1460–1687), the capital was first in Corinth (Turk. Gördes ), later in Leontari ( Londari ), Mystras ( Misistire ) and finally in Nauplion (Tr. Anaboli ). Sometime in

8625-489: The legend of the hero Pelops , who was said to have conquered the entire region. The name Peloponnesos means Island or Peninsula (archaic meaning of the word nesos ) of Pelops. The Mycenaean civilization , mainland Greece's (and Europe's) first major civilization, dominated the Peloponnese in the Bronze Age from the palaces of Mycenae , Pylos and Tiryns ; among others. The Mycenaean civilization collapsed suddenly at

8740-766: The manufacturer based on the weight of the vehicle, loaded and unloaded. Some people use shocks to modify spring rates but this is not the correct use. Along with hysteresis in the tire itself, they damp the energy stored in the motion of the unsprung weight up and down. Effective wheel bounce damping may require tuning shocks to an optimal resistance. Spring -based shock absorbers commonly use coil springs or leaf springs , though torsion bars are used in torsional shocks as well. Ideal springs alone, however, are not shock absorbers, as springs only store and do not dissipate or absorb energy. Vehicles typically employ both hydraulic shock absorbers and springs or torsion bars. In this combination, "shock absorber" refers specifically to

8855-493: The mid-15th century, they formed a substantial part of the population of the Peloponnesus. Military sources of the era (1425) report about 30,000 Albanian men who could carry arms in the Peloponnese. The Greeks tended to live in large villages and cities, while Albanians in small villages. Following Ottoman conquest, many Albanians fled to Italy, settling primarily in nowadays Arbereshe villages of Calabria and Sicily . On

8970-612: The mid-17th century, the Morea became the centre of a separate eyalet , with Patras ( Ballibadra ) as its capital. Until the death of Suleiman the Magnificent in 1570, the Christian population (counted at some 42,000 families c. 1550 ) managed to retain some privileges and Islamization was slow, mostly among the Albanians or the estate owners who were integrated into the Ottoman feudal system. Although they quickly came to control most of

9085-530: The migration and settlement of Christian Albanians to parts of Central Greece and the Peloponnese, a group that eventually became known as the Arvanites The Albanians settled in successive waves, often invited by the local rulers. They start appearing more frequently in the historical record from during the second part of the 14th century, when they were being offered arable land, pasture and favorable taxation in exchange for military service. One of

9200-456: The military commander there, stationed at Salmeniko Castle . While the town eventually surrendered, Graitzas and his garrison and some town residents held out in the castle until July 1461, when they escaped and reached Venetian territory. Only the Venetian fortresses of Modon , Coron , Navarino , Monemvasia , Argos and Nauplion escaped Ottoman control. The same period was also marked by

9315-412: The northeast (2,376 m or 7,795 ft), Aroania in the north (2,355 m or 7,726 ft), Erymanthos (2,224 m or 7,297 ft) and Panachaikon in the northwest (1,926 m or 6,319 ft), Mainalon in the center (1,981 m or 6,499 ft), and Parnon in the southeast (1,935 m or 6,348 ft). The entire peninsula is earthquake-prone and has been the site of many earthquakes in

9430-419: The oil damped in the rebound direction. The Telesco unit was fitted at the rear end of the leaf spring, in place of the rear spring to chassis mount, so that it formed part of the springing system, albeit a hydraulically damped part. This layout was presumably selected as it was easy to apply to existing vehicles, but it meant the hydraulic damping was not applied to the action of the main leaf spring, but only to

9545-602: The other hand, in an effort to control the remaining Albanians, during the second half of the 15th century, the Ottomans adopted favorable tax policies towards them, likely in continuation of similar Byzantine practices. This policy had been discontinued by the early 16th century. Throughout the Ottoman–Venetian wars , many Albanians died or were captured in service to the Venetians; at Nafpaktos , Nafplio , Argos , Methoni , Koroni and Pylos . Furthermore, 8,000 Albanian stratioti , most of them along with their families, left

9660-691: The past. The longest river is the Alfeios in the west (110 km or 68 mi), followed by the Evrotas in the south (82 km or 51 mi), and also the Pineios , also in the west (70 km or 43 mi). The Peloponnese, with its indented coasts, is home to numerous spectacular beaches, which are a major tourist draw. Two groups of islands lie off the Peloponnesian coast: the Argo-Saronic Islands to

9775-569: The peninsula in 1715, most local Greeks welcomed them. The Ottoman reconquest was easy and swift, and was recognized by Venice in the Treaty of Passarowitz in 1718. The Peloponnese now became the core of the Morea Eyalet , headed by the Mora valesi , who until 1780 was a pasha of the first rank (with three horsetails ) and held the title of vizier . After 1780 and until the Greek War of Independence ,

9890-578: The peninsula is significantly drier. Average annual temperatures can reach up to 20.3 °C (68.5 °F) while summer highs reach over 36.0 °C (96.8 °F) in Sparta , within the Evrotas Valley . On 27 June 2007, Monemvasia registered a staggering minimum temperature of 35.9°C, which is the highest minimum temperature ever recorded in mainland Greece and Continental Europe . The peninsula has been inhabited since prehistoric times . Its modern name derives from ancient Greek mythology , specifically

10005-506: The peninsula retained its urbanized character: in the 6th century, Hierocles counted 26 cities in his Synecdemus . By the latter part of that century, however, building activity seems to have stopped virtually everywhere except in Constantinople, Thessalonica, Corinth, and Athens. This has traditionally been attributed to calamities such as plague, earthquakes and Slavic invasions. However, more recent analysis suggests that urban decline

10120-506: The peninsula, as evidenced by the abundance of Slavic toponyms , but these toponyms accumulated over centuries rather than as a result of an initial "flood" of Slavic invasions, and many appear to have been mediated by speakers of Greek, or in mixed Slavic-Greek compounds. Fewer Slavic toponyms appear on the eastern coast, which remained in Byzantine hands and was included in the thema of Hellas , established by Justinian II c.  690 . While traditional historiography has dated

10235-509: The peninsula, however, received a critical blow after the Battle of Pelagonia , when William II of Villehardouin was forced to cede the newly constructed fortress and palace at Mystras near ancient Sparta to a resurgent Byzantium. At this point, the emperor concluded an agreement with the captive prince: William and his men would be set free in exchange for an oath of fealty, and for the cession of Monemvasia, Grand Magne, and Mystras. The handover

10350-409: The piers can move laterally on the sea floor with the gravel bed absorbing the energy. The bridge decking is connected to the pylons using jacks and dampers to absorb movement; too rigid a connection would cause the bridge structure to fail in the event of an earthquake and too much lateral leeway would damage the piers. There is also provision for the gradual widening of the strait over the lifetime of

10465-414: The piston and via the valve, converting the "shock" energy into heat which must then be dissipated. Variously known as a "gas cell two-tube" or similarly named design, this variation represented a significant advancement over the basic twin-tube form. Its overall structure is very similar to the twin-tube, but a low-pressure charge of nitrogen gas is added to the reserve tube. The result of this alteration

10580-465: The piston starts to occur with greater intensity (i.e., on bumpy sections of roads— the stiffening gives the driver greater control of movement over the vehicle so its range on either side of the comfort zone is called the "control zone"). This advance allowed car designers to make a shock absorber tailored to specific makes and models of vehicles and to take into account a given vehicle's size and weight, its maneuverability, its horsepower, etc. in creating

10695-407: The population. Nevertheless, attacks by Muslim Albanian mercenaries in the region continued not only against the Greek population but also against Turks. The extensive destruction and lack of control in the Peloponnese forced the central Ottoman government to send a regular Turkish military force to suppress those Albanian troops in 1779, and eventually drive them out from Peloponnese. As a result of

10810-492: The pre-1770 population. The Ottoman government was unable to pay the wages the Albanian mercenaries demanded for their service, causing the latter to ravage the region even after revolt had been put down. 1770-1779 was a prolonged period of devastation and atrocities committed by Albanian irregulars in the Peloponnese. In 1774 the Russo-Turkish War ended with the Treaty of Küçük Kaynarca which granted general amnesty to

10925-455: The pressure tube in response to changes in road smoothness. The two pistons also completely separate the shock's fluid and gas components. The mono-tube shock absorber is consistently a much longer overall design than the twin-tubes, making it difficult to mount in passenger cars designed for twin-tube shocks. However, unlike the twin-tubes, the mono-tube shock can be mounted either way— it does not have any directionality. It also does not have

11040-456: The project had begun. Due to the peculiar conditions of the straits, several unique engineering problems needed to be considered and overcome. The water depth reaches 65 m, the seabed is mostly of loose sediment, the seismic activity and possibility of tectonic movement is significant, and the Gulf of Corinth is expanding at a rate of about 30 mm a year. In addition, the hills on either side create

11155-406: The province was headed by a muhassil . The pasha of the Morea was aided by several subordinate officials, including a Christian translator ( dragoman ), who was the senior Christian official of the province. As during the first Ottoman period, the Morea was divided into 22 districts or beyliks . The capital was first at Nauplion, but after 1786 at Tripolitza (Tr. Trabliçe ). The Greeks of

11270-620: The region are still unknown. It is thought to be one of the largest environmental disasters in modern Greek history. The principal modern cities of the Peloponnese are (2011 census): The Peloponnese possesses many important archaeological sites dating from the Bronze Age through to the Middle Ages. Among the most notable are: ‡ UNESCO World Heritage Site Specialities of the region: Several notable Peloponnese wines have Protected Designation of Origin (PDO) status. The Mantineia region makes

11385-568: The resistance activities. Nevertheless, through the privileges granted with the Treaty of Kuchuk-Kainarji , especially the right for the Christians to trade under the Russian flag, led to a considerable economic flowering of the local Greeks, which, coupled with the increased cultural contacts with Western Europe ( Modern Greek Enlightenment ) and the inspiring ideals of the French Revolution , laid

11500-529: The rotary friction dampers tended to stick and then offer the same resistance regardless of speed of movement. There appears to have been little progress on commercialising the lever arm shock absorbers until after World War I , after which they came into widespread use, for example as standard equipment on the 1927 Ford Model A and manufactured by Houde Engineering Corporation of Buffalo, NY. Most vehicular shock absorbers are either twin-tube or mono-tube types with some variations on these themes. Also known as

11615-606: The scene of the Peloponnesian War of 431–404 BC. The entire Peloponnese with the notable exception of Sparta joined Alexander's expedition against the Persian Empire. Along with the rest of Greece, the Peloponnese fell to the expanding Roman Republic in 146 BC, when the Romans razed the city of Corinth and massacred its inhabitants. The Romans created the province of Achaea comprising the Peloponnese and central Greece. During

11730-524: The size of the main span does often correlate with the height of the towers, and the engineering complexity involved in designing and constructing the bridge) and as the latter is also supported by bearings at the pylons apart from cable stays, the Rio–Antirrio Bridge deck might be considered the longest cable-stayed "suspended" deck in the world. This bridge is widely considered to be an engineering masterpiece, owing to several solutions applied to span

11845-526: The spring and vehicle combination bounced with a characteristic frequency, these auxiliary springs were designed with a different period, but were not a solution to the problem that the spring rebound after striking a bump could throw you out of your seat. What was called for was damping that operated on the rebound. Although C.L. Horock came up with a design in 1901 that had hydraulic damping, it worked in one direction only. It does not seem to have gone into production right away, whereas mechanical dampers such as

11960-399: The system is the ability to detect and specifically treat earthquake events. Photography by both professional and amateur photographers or cinematographers is allowed and encouraged by the bridge management without the need for a permit, with the bridge's management often organizing special events inviting professional and amateur photographers and cinematographers to photograph the bridge and

12075-488: The total population. The Venetian fortresses were conquered in a series of Ottoman-Venetian Wars : the first war , lasting from 1463 to 1479, saw much fighting in the Peloponnese, resulting in the loss of Argos , while Modon and Coron fell in 1500 during the second war . Coron and Patras were captured in a crusading expedition in 1532, led by the Genoese admiral Andrea Doria , but this provoked another war in which

12190-615: The traffic decks. Steel fabrication was undertaken by Cleveland Bridge & Engineering Company . On 21 May 2004 the main stage of construction was completed; only equipment (sidewalks, railings, etc.) and waterproofing remained to be installed. The total cost of the bridge was about €630 million, funded by Greek state funds, the consortium, and loans by the European Investment Bank . It was finished ahead of its original schedule, which had foreseen completion between September and November 2004, and within budget. Other sources suggest

12305-463: The troubled relations with the Slavs, the coastal regions of the Peloponnese suffered greatly from repeated Arab raids following the Arab capture of Crete in the 820s and the establishment of a corsair emirate there. After the island was recovered by Byzantium in 961 however, the region entered a period of renewed prosperity, where agriculture, commerce, and urban industry flourished. In 1205, following

12420-452: The twin-tube form has been the mono-tube shock absorber which was considered a revolutionary advancement when it appeared in the 1950s. As its name implies, the mono-tube shock, which is also a gas-pressurized shock and also comes in a coilover format, consists of only one tube, the pressure tube, though it has two pistons. These pistons are called the working piston and the dividing or floating piston, and they move in relative synchrony inside

12535-443: Was also fitted to many cars. One of the problems with motor cars was the large variation in sprung weight between lightly loaded and fully loaded, especially for the rear springs. When heavily loaded the springs could bottom out, and apart from fitting rubber 'bump stops', there were attempts to use heavy main springs with auxiliary springs to smooth the ride when lightly loaded, which were often called 'shock absorbers'. Realizing that

12650-512: Was closely linked with the collapse of long-distance and regional commercial networks that underpinned and supported late antique urbanism in Greece, as well as with the generalized withdrawal of imperial troops and administration from the Balkans. The scale of the Slavic invasion and settlement in the 7th and 8th centuries remains a matter of dispute, although it is nowadays considered much smaller than previously thought. The Slavs did occupy most of

12765-577: Was completed in the late 19th century, linking the Aegean Sea with the Gulf of Corinth and the Ionian. In 2001, the Rio-Antirio Bridge was completed, linking the western Peloponnese to western Greece. In late August 2007, large parts of Peloponnese suffered from wildfires , which caused severe damage in villages and forests and the death of 77 people. The impact of the fires to the environment and economy of

12880-440: Was effected in 1262, and henceforth Mystras was the seat of the governor of the Byzantine territories in the Morea. Initially this governor ( kephale ) was changed every year, but after 1308 they started being appointed for longer terms. Almost immediately on his return to the Morea, William of Villehardouin renounced his oath to the emperor, and warfare broke out between Byzantines and Franks. The first Byzantine attempts to subdue

12995-441: Was immediately halted. The investigation found that a fire had broken out on the top of the M1 pylon after a lightning strike to one of the cables. The cable was immediately restored and the bridge reopened. A structural health monitoring system was installed during construction on the bridge. Still operating, it provides a 24/7 surveillance of the structure. The system has more than 100 sensors, including: One specific element of

13110-583: Was planned in the mid-1990s and was built by a French-Greek consortium led by the French group Vinci SA which includes the Greek companies Hellenic Technodomiki-TEV, J&P -Avax, Athena, Proodeftiki and Pantechniki. The consortium operates the bridge under concession under its ΓΕΦΥΡΑ or ΓαλλοΕλληνικός Φορέας Υπερθαλάσσιας ζεύξης Ρίου-Αντιρίου ( GEFYRA —Greek for "bridge"—or GalloEllinikós Foréas Yperthalássias zéfxis Ríou-Antiríou , French-Greek Carrier of Oversea Connection of Rio–Antirrio) subsidiary. The suspension of

13225-533: Was the reason it was "impossible" to use them as main springs. However the amount of damping provided by leaf spring friction was limited and variable according to the conditions of the springs, and whether wet or dry. It also operated in both directions. Motorcycle front suspension adopted coil sprung Druid forks from about 1906, and similar designs later added Friction disk shock absorber rotary friction dampers, which damped both ways - but they were adjustable (e.g. 1924 Webb forks). These friction disk shock absorber s

#175824