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“We’re here!” is paying a visit to The Kurt Vonnegut Appreciation Society today – and there I was with no recollection of ever having read one of his novels. This seemed so odd to me that I double-checked the list of his writings, but no, nothing was ringing a bell. I noticed there was a short story mentioned, and I had time to read a short story. So my image today is an interpretation of Harrison Bergeron, wherein society enforces equality by requiring each person to hide their special talents and abilities through cruel and extreme means.
Mr, Vonnegut once wrote a letter to the earth’s inhabitants 100 years hence, offering this advice:
“The sort of leaders we need now are not those who promise ultimate victory over Nature through perseverance in living as we do right now, but those with the courage and intelligence to present to the world what appears to be Nature’s stern but reasonable surrender terms:
Reduce and stabilize your population.
Stop poisoning the air, the water, and the topsoil.
Stop preparing for war and start dealing with your real problems.
Teach your kids, and yourselves, too, while you’re at it, how to inhabit a small planet without helping to kill it.
Stop thinking science can fix anything if you give it a trillion dollars.
Stop thinking your grandchildren will be OK no matter how wasteful or destructive you may be, since they can go to a nice new planet on a spaceship. That is really mean, and stupid.
And so on. Or else.”
dangerousminds.net/comments/bad_news_kurt_vonneguts_bleak...
Photo captured via Minolta MD Rokkor-X 85mm F/1.7 lens. Spokane Indian Reservation. Selkirk Mountains Range. Okanogan-Colville Xeric Valleys and Foothills section within the Northern Rockies Region. Inland Northwest. Stevens County, Washington. Late October 2020.
Exposure Time: 3.2 sec. * ISO Speed: ISO-100 * Aperture: F/11 * Bracketing: None * Color Temperature: 7850 K * Film Plug-In: Fuji Provia 100F * Filter: Hoya HMC CIR-PL (⌀55mm) * Elevation: 2,520 feet above sea-level
The Karpas Peninsula is a long, finger-like peninsula that is one of the most prominent geographical features of the island of Cyprus. Its farthest extent is Cape Apostolos Andreas, and its major population centre is the town of Rizokarpaso (Greek: Ριζοκάρπασο; Turkish: Dipkarpaz). The peninsula de facto forms the İskele District of Northern Cyprus, while de jure it lies in the Famagusta District of the Republic of Cyprus.
It covers an area of 898 km2, making up 27% of the territory of Northern Cyprus. It is much less densely populated than the average of Northern Cyprus, with a population density of 26 people per km2 in 2010. The town of Trikomo (İskele), the district capital, is considered to be the "gateway" and the geographical starting point of the peninsula, along with the neighboring village of Bogazi (Boğaz). Apart from Trikomo, the most important towns and municipalities in the area are Yialousa, Galateia, Rizokarpaso, Komi Kebir and Akanthou.
The peninsula hosts a number of historical sites such as Kantara Castle and Apostolos Andreas Monastery, as well as the ruins of Agia Trias Basilica and the ancient cities of Karpasia and Aphendrika among numerous others.
There are more than 46 sandy beaches in the peninsula, which are the primary Eastern Mediterranean nesting grounds for the loggerhead (Caretta caretta) and green sea turtles (Chelonia mydas). The Golden Beach is situated around 15 km from the town of Rizokarpaso and is considered one of the finest and most remote beaches of Cyprus. It is one of the least tourist-frequented beaches in the island. The Karpas Peninsula is home to the Karpas donkey, known as a symbol of Cyprus; there are campaigns carried out jointly by Turkish and Greek Cypriots to conserve the rare donkeys of the peninsula.
Most of the activities in the Karpas Peninsula are related to agriculture, fishing, hunting, and some to micro-tourism. Local farmers take advantage of this natural environment to grow different fruits and vegetables mostly as sub-subsistence farming (although for local commerce too). The region is mostly known for its karpuz (Turkish for "watermelon"). Several tourist businesses can be found in the town of Rizokarpaso. These are generally restaurants serving traditional Turkish-Cypriot Cuisine, including meze.
Due to its geographical position, the Karpas Peninsula is somewhat protected from human interference. This makes it a pristine natural environment, home to many inland and marine species. When hunting season starts, the Karpas's forests are a popular location to go hunting for partridges. Meanwhile, the coastal region, with its clear waters, moderate northern currents, and rocky bottom with cave-like structures, is home to two of the most highly valued fish species: the orfoz (dusky grouper) and lahos (Epinepheluses). The price per kilogram of each species ranges from 35-80 Turkish lira, depending on the location and the season. However, fishing rates in the Karpas region and most of North Cyprus dramatically decreased last century because of the use of dynamite. This is why the Zafer Burunu (the tip of the peninsula) is now a protected natural heritage area, where marine species are slowly recovering to healthy population parameters.
Northern Cyprus, officially the Turkish Republic of Northern Cyprus (TRNC), is a de facto state that comprises the northeastern portion of the island of Cyprus. It is recognised only by Turkey, and its territory is considered by all other states to be part of the Republic of Cyprus.
Northern Cyprus extends from the tip of the Karpass Peninsula in the northeast to Morphou Bay, Cape Kormakitis and its westernmost point, the Kokkina exclave in the west. Its southernmost point is the village of Louroujina. A buffer zone under the control of the United Nations stretches between Northern Cyprus and the rest of the island and divides Nicosia, the island's largest city and capital of both sides.
A coup d'état in 1974, performed as part of an attempt to annex the island to Greece, prompted the Turkish invasion of Cyprus. This resulted in the eviction of much of the north's Greek Cypriot population, the flight of Turkish Cypriots from the south, and the partitioning of the island, leading to a unilateral declaration of independence by the north in 1983. Due to its lack of recognition, Northern Cyprus is heavily dependent on Turkey for economic, political and military support.
Attempts to reach a solution to the Cyprus dispute have been unsuccessful. The Turkish Army maintains a large force in Northern Cyprus with the support and approval of the TRNC government, while the Republic of Cyprus, the European Union as a whole, and the international community regard it as an occupation force. This military presence has been denounced in several United Nations Security Council resolutions.
Northern Cyprus is a semi-presidential, democratic republic with a cultural heritage incorporating various influences and an economy that is dominated by the services sector. The economy has seen growth through the 2000s and 2010s, with the GNP per capita more than tripling in the 2000s, but is held back by an international embargo due to the official closure of the ports in Northern Cyprus by the Republic of Cyprus. The official language is Turkish, with a distinct local dialect being spoken. The vast majority of the population consists of Sunni Muslims, while religious attitudes are mostly moderate and secular. Northern Cyprus is an observer state of ECO and OIC under the name "Turkish Cypriot State", PACE under the name "Turkish Cypriot Community", and Organization of Turkic States with its own name.
Several distinct periods of Cypriot intercommunal violence involving the two main ethnic communities, Greek Cypriots and Turkish Cypriots, marked mid-20th century Cyprus. These included the Cyprus Emergency of 1955–59 during British rule, the post-independence Cyprus crisis of 1963–64, and the Cyprus crisis of 1967. Hostilities culminated in the 1974 de facto division of the island along the Green Line following the Turkish invasion of Cyprus. The region has been relatively peaceful since then, but the Cyprus dispute has continued, with various attempts to solve it diplomatically having been generally unsuccessful.
Cyprus, an island lying in the eastern Mediterranean, hosted a population of Greeks and Turks (four-fifths and one-fifth, respectively), who lived under British rule in the late nineteenth-century and the first half of the twentieth-century. Christian Orthodox Church of Cyprus played a prominent political role among the Greek Cypriot community, a privilege that it acquired during the Ottoman Empire with the employment of the millet system, which gave the archbishop an unofficial ethnarch status.
The repeated rejections by the British of Greek Cypriot demands for enosis, union with Greece, led to armed resistance, organised by the National Organization of Cypriot Struggle, or EOKA. EOKA, led by the Greek-Cypriot commander George Grivas, systematically targeted British colonial authorities. One of the effects of EOKA's campaign was to alter the Turkish position from demanding full reincorporation into Turkey to a demand for taksim (partition). EOKA's mission and activities caused a "Cretan syndrome" (see Turkish Resistance Organisation) within the Turkish Cypriot community, as its members feared that they would be forced to leave the island in such a case as had been the case with Cretan Turks. As such, they preferred the continuation of British colonial rule and then taksim, the division of the island. Due to the Turkish Cypriots' support for the British, EOKA's leader, Georgios Grivas, declared them to be enemies. The fact that the Turks were a minority was, according to Nihat Erim, to be addressed by the transfer of thousands of Turks from mainland Turkey so that Greek Cypriots would cease to be the majority. When Erim visited Cyprus as the Turkish representative, he was advised by Field Marshal Sir John Harding, the then Governor of Cyprus, that Turkey should send educated Turks to settle in Cyprus.
Turkey actively promoted the idea that on the island of Cyprus two distinctive communities existed, and sidestepped its former claim that "the people of Cyprus were all Turkish subjects". In doing so, Turkey's aim to have self-determination of two to-be equal communities in effect led to de jure partition of the island.[citation needed] This could be justified to the international community against the will of the majority Greek population of the island. Dr. Fazil Küçük in 1954 had already proposed Cyprus be divided in two at the 35° parallel.
Lindley Dan, from Notre Dame University, spotted the roots of intercommunal violence to different visions among the two communities of Cyprus (enosis for Greek Cypriots, taksim for Turkish Cypriots). Also, Lindlay wrote that "the merging of church, schools/education, and politics in divisive and nationalistic ways" had played a crucial role in creation of havoc in Cyprus' history. Attalides Michael also pointed to the opposing nationalisms as the cause of the Cyprus problem.
By the mid-1950's, the "Cyprus is Turkish" party, movement, and slogan gained force in both Cyprus and Turkey. In a 1954 editorial, Turkish Cypriot leader Dr. Fazil Kuchuk expressed the sentiment that the Turkish youth had grown up with the idea that "as soon as Great Britain leaves the island, it will be taken over by the Turks", and that "Turkey cannot tolerate otherwise". This perspective contributed to the willingness of Turkish Cypriots to align themselves with the British, who started recruiting Turkish Cypriots into the police force that patrolled Cyprus to fight EOKA, a Greek Cypriot nationalist organisation that sought to rid the island of British rule.
EOKA targeted colonial authorities, including police, but Georgios Grivas, the leader of EOKA, did not initially wish to open up a new front by fighting Turkish Cypriots and reassured them that EOKA would not harm their people. In 1956, some Turkish Cypriot policemen were killed by EOKA members and this provoked some intercommunal violence in the spring and summer, but these attacks on policemen were not motivated by the fact that they were Turkish Cypriots.
However, in January 1957, Grivas changed his policy as his forces in the mountains became increasingly pressured by the British Crown forces. In order to divert the attention of the Crown forces, EOKA members started to target Turkish Cypriot policemen intentionally in the towns, so that Turkish Cypriots would riot against the Greek Cypriots and the security forces would have to be diverted to the towns to restore order. The killing of a Turkish Cypriot policeman on 19 January, when a power station was bombed, and the injury of three others, provoked three days of intercommunal violence in Nicosia. The two communities targeted each other in reprisals, at least one Greek Cypriot was killed and the British Army was deployed in the streets. Greek Cypriot stores were burned and their neighbourhoods attacked. Following the events, the Greek Cypriot leadership spread the propaganda that the riots had merely been an act of Turkish Cypriot aggression. Such events created chaos and drove the communities apart both in Cyprus and in Turkey.
On 22 October 1957 Sir Hugh Mackintosh Foot replaced Sir John Harding as the British Governor of Cyprus. Foot suggested five to seven years of self-government before any final decision. His plan rejected both enosis and taksim. The Turkish Cypriot response to this plan was a series of anti-British demonstrations in Nicosia on 27 and 28 January 1958 rejecting the proposed plan because the plan did not include partition. The British then withdrew the plan.
In 1957, Black Gang, a Turkish Cypriot pro-taksim paramilitary organisation, was formed to patrol a Turkish Cypriot enclave, the Tahtakale district of Nicosia, against activities of EOKA. The organisation later attempted to grow into a national scale, but failed to gain public support.
By 1958, signs of dissatisfaction with the British increased on both sides, with a group of Turkish Cypriots forming Volkan (later renamed to the Turkish Resistance Organisation) paramilitary group to promote partition and the annexation of Cyprus to Turkey as dictated by the Menderes plan. Volkan initially consisted of roughly 100 members, with the stated aim of raising awareness in Turkey of the Cyprus issue and courting military training and support for Turkish Cypriot fighters from the Turkish government.
In June 1958, the British Prime Minister, Harold Macmillan, was expected to propose a plan to resolve the Cyprus issue. In light of the new development, the Turks rioted in Nicosia to promote the idea that Greek and Turkish Cypriots could not live together and therefore any plan that did not include partition would not be viable. This violence was soon followed by bombing, Greek Cypriot deaths and looting of Greek Cypriot-owned shops and houses. Greek and Turkish Cypriots started to flee mixed population villages where they were a minority in search of safety. This was effectively the beginning of the segregation of the two communities. On 7 June 1958, a bomb exploded at the entrance of the Turkish Embassy in Cyprus. Following the bombing, Turkish Cypriots looted Greek Cypriot properties. On 26 June 1984, the Turkish Cypriot leader, Rauf Denktaş, admitted on British channel ITV that the bomb was placed by the Turks themselves in order to create tension. On 9 January 1995, Rauf Denktaş repeated his claim to the famous Turkish newspaper Milliyet in Turkey.
The crisis reached a climax on 12 June 1958, when eight Greeks, out of an armed group of thirty five arrested by soldiers of the Royal Horse Guards on suspicion of preparing an attack on the Turkish quarter of Skylloura, were killed in a suspected attack by Turkish Cypriot locals, near the village of Geunyeli, having been ordered to walk back to their village of Kondemenos.
After the EOKA campaign had begun, the British government successfully began to turn the Cyprus issue from a British colonial problem into a Greek-Turkish issue. British diplomacy exerted backstage influence on the Adnan Menderes government, with the aim of making Turkey active in Cyprus. For the British, the attempt had a twofold objective. The EOKA campaign would be silenced as quickly as possible, and Turkish Cypriots would not side with Greek Cypriots against the British colonial claims over the island, which would thus remain under the British. The Turkish Cypriot leadership visited Menderes to discuss the Cyprus issue. When asked how the Turkish Cypriots should respond to the Greek Cypriot claim of enosis, Menderes replied: "You should go to the British foreign minister and request the status quo be prolonged, Cyprus to remain as a British colony". When the Turkish Cypriots visited the British Foreign Secretary and requested for Cyprus to remain a colony, he replied: "You should not be asking for colonialism at this day and age, you should be asking for Cyprus be returned to Turkey, its former owner".
As Turkish Cypriots began to look to Turkey for protection, Greek Cypriots soon understood that enosis was extremely unlikely. The Greek Cypriot leader, Archbishop Makarios III, now set independence for the island as his objective.
Britain resolved to solve the dispute by creating an independent Cyprus. In 1959, all involved parties signed the Zurich Agreements: Britain, Turkey, Greece, and the Greek and Turkish Cypriot leaders, Makarios and Dr. Fazil Kucuk, respectively. The new constitution drew heavily on the ethnic composition of the island. The President would be a Greek Cypriot, and the Vice-President a Turkish Cypriot with an equal veto. The contribution to the public service would be set at a ratio of 70:30, and the Supreme Court would consist of an equal number of judges from both communities as well as an independent judge who was not Greek, Turkish or British. The Zurich Agreements were supplemented by a number of treaties. The Treaty of Guarantee stated that secession or union with any state was forbidden, and that Greece, Turkey and Britain would be given guarantor status to intervene if that was violated. The Treaty of Alliance allowed for two small Greek and Turkish military contingents to be stationed on the island, and the Treaty of Establishment gave Britain sovereignty over two bases in Akrotiri and Dhekelia.
On 15 August 1960, the Colony of Cyprus became fully independent as the Republic of Cyprus. The new republic remained within the Commonwealth of Nations.
The new constitution brought dissatisfaction to Greek Cypriots, who felt it to be highly unjust for them for historical, demographic and contributional reasons. Although 80% of the island's population were Greek Cypriots and these indigenous people had lived on the island for thousands of years and paid 94% of taxes, the new constitution was giving the 17% of the population that was Turkish Cypriots, who paid 6% of taxes, around 30% of government jobs and 40% of national security jobs.
Within three years tensions between the two communities in administrative affairs began to show. In particular disputes over separate municipalities and taxation created a deadlock in government. A constitutional court ruled in 1963 Makarios had failed to uphold article 173 of the constitution which called for the establishment of separate municipalities for Turkish Cypriots. Makarios subsequently declared his intention to ignore the judgement, resulting in the West German judge resigning from his position. Makarios proposed thirteen amendments to the constitution, which would have had the effect of resolving most of the issues in the Greek Cypriot favour. Under the proposals, the President and Vice-President would lose their veto, the separate municipalities as sought after by the Turkish Cypriots would be abandoned, the need for separate majorities by both communities in passing legislation would be discarded and the civil service contribution would be set at actual population ratios (82:18) instead of the slightly higher figure for Turkish Cypriots.
The intention behind the amendments has long been called into question. The Akritas plan, written in the height of the constitutional dispute by the Greek Cypriot interior minister Polycarpos Georkadjis, called for the removal of undesirable elements of the constitution so as to allow power-sharing to work. The plan envisaged a swift retaliatory attack on Turkish Cypriot strongholds should Turkish Cypriots resort to violence to resist the measures, stating "In the event of a planned or staged Turkish attack, it is imperative to overcome it by force in the shortest possible time, because if we succeed in gaining command of the situation (in one or two days), no outside, intervention would be either justified or possible." Whether Makarios's proposals were part of the Akritas plan is unclear, however it remains that sentiment towards enosis had not completely disappeared with independence. Makarios described independence as "a step on the road to enosis".[31] Preparations for conflict were not entirely absent from Turkish Cypriots either, with right wing elements still believing taksim (partition) the best safeguard against enosis.
Greek Cypriots however believe the amendments were a necessity stemming from a perceived attempt by Turkish Cypriots to frustrate the working of government. Turkish Cypriots saw it as a means to reduce their status within the state from one of co-founder to that of minority, seeing it as a first step towards enosis. The security situation deteriorated rapidly.
Main articles: Bloody Christmas (1963) and Battle of Tillyria
An armed conflict was triggered after December 21, 1963, a period remembered by Turkish Cypriots as Bloody Christmas, when a Greek Cypriot policemen that had been called to help deal with a taxi driver refusing officers already on the scene access to check the identification documents of his customers, took out his gun upon arrival and shot and killed the taxi driver and his partner. Eric Solsten summarised the events as follows: "a Greek Cypriot police patrol, ostensibly checking identification documents, stopped a Turkish Cypriot couple on the edge of the Turkish quarter. A hostile crowd gathered, shots were fired, and two Turkish Cypriots were killed."
In the morning after the shooting, crowds gathered in protest in Northern Nicosia, likely encouraged by the TMT, without incident. On the evening of the 22nd, gunfire broke out, communication lines to the Turkish neighbourhoods were cut, and the Greek Cypriot police occupied the nearby airport. On the 23rd, a ceasefire was negotiated, but did not hold. Fighting, including automatic weapons fire, between Greek and Turkish Cypriots and militias increased in Nicosia and Larnaca. A force of Greek Cypriot irregulars led by Nikos Sampson entered the Nicosia suburb of Omorphita and engaged in heavy firing on armed, as well as by some accounts unarmed, Turkish Cypriots. The Omorphita clash has been described by Turkish Cypriots as a massacre, while this view has generally not been acknowledged by Greek Cypriots.
Further ceasefires were arranged between the two sides, but also failed. By Christmas Eve, the 24th, Britain, Greece, and Turkey had joined talks, with all sides calling for a truce. On Christmas day, Turkish fighter jets overflew Nicosia in a show of support. Finally it was agreed to allow a force of 2,700 British soldiers to help enforce a ceasefire. In the next days, a "buffer zone" was created in Nicosia, and a British officer marked a line on a map with green ink, separating the two sides of the city, which was the beginning of the "Green Line". Fighting continued across the island for the next several weeks.
In total 364 Turkish Cypriots and 174 Greek Cypriots were killed during the violence. 25,000 Turkish Cypriots from 103-109 villages fled and were displaced into enclaves and thousands of Turkish Cypriot houses were ransacked or completely destroyed.
Contemporary newspapers also reported on the forceful exodus of the Turkish Cypriots from their homes. According to The Times in 1964, threats, shootings and attempts of arson were committed against the Turkish Cypriots to force them out of their homes. The Daily Express wrote that "25,000 Turks have already been forced to leave their homes". The Guardian reported a massacre of Turks at Limassol on 16 February 1964.
Turkey had by now readied its fleet and its fighter jets appeared over Nicosia. Turkey was dissuaded from direct involvement by the creation of a United Nations Peacekeeping Force in Cyprus (UNFICYP) in 1964. Despite the negotiated ceasefire in Nicosia, attacks on the Turkish Cypriot persisted, particularly in Limassol. Concerned about the possibility of a Turkish invasion, Makarios undertook the creation of a Greek Cypriot conscript-based army called the "National Guard". A general from Greece took charge of the army, whilst a further 20,000 well-equipped officers and men were smuggled from Greece into Cyprus. Turkey threatened to intervene once more, but was prevented by a strongly worded letter from the American President Lyndon B. Johnson, anxious to avoid a conflict between NATO allies Greece and Turkey at the height of the Cold War.
Turkish Cypriots had by now established an important bridgehead at Kokkina, provided with arms, volunteers and materials from Turkey and abroad. Seeing this incursion of foreign weapons and troops as a major threat, the Cypriot government invited George Grivas to return from Greece as commander of the Greek troops on the island and launch a major attack on the bridgehead. Turkey retaliated by dispatching its fighter jets to bomb Greek positions, causing Makarios to threaten an attack on every Turkish Cypriot village on the island if the bombings did not cease. The conflict had now drawn in Greece and Turkey, with both countries amassing troops on their Thracian borders. Efforts at mediation by Dean Acheson, a former U.S. Secretary of State, and UN-appointed mediator Galo Plaza had failed, all the while the division of the two communities becoming more apparent. Greek Cypriot forces were estimated at some 30,000, including the National Guard and the large contingent from Greece. Defending the Turkish Cypriot enclaves was a force of approximately 5,000 irregulars, led by a Turkish colonel, but lacking the equipment and organisation of the Greek forces.
The Secretary-General of the United Nations in 1964, U Thant, reported the damage during the conflicts:
UNFICYP carried out a detailed survey of all damage to properties throughout the island during the disturbances; it shows that in 109 villages, most of them Turkish-Cypriot or mixed villages, 527 houses have been destroyed while 2,000 others have suffered damage from looting.
The situation worsened in 1967, when a military junta overthrew the democratically elected government of Greece, and began applying pressure on Makarios to achieve enosis. Makarios, not wishing to become part of a military dictatorship or trigger a Turkish invasion, began to distance himself from the goal of enosis. This caused tensions with the junta in Greece as well as George Grivas in Cyprus. Grivas's control over the National Guard and Greek contingent was seen as a threat to Makarios's position, who now feared a possible coup.[citation needed] The National Guard and Cyprus Police began patrolling the Turkish Cypriot enclaves of Ayios Theodoros and Kophinou, and on November 15 engaged in heavy fighting with the Turkish Cypriots.
By the time of his withdrawal 26 Turkish Cypriots had been killed. Turkey replied with an ultimatum demanding that Grivas be removed from the island, that the troops smuggled from Greece in excess of the limits of the Treaty of Alliance be removed, and that the economic blockades on the Turkish Cypriot enclaves be lifted. Grivas was recalled by the Athens Junta and the 12,000 Greek troops were withdrawn. Makarios now attempted to consolidate his position by reducing the number of National Guard troops, and by creating a paramilitary force loyal to Cypriot independence. In 1968, acknowledging that enosis was now all but impossible, Makarios stated, "A solution by necessity must be sought within the limits of what is feasible which does not always coincide with the limits of what is desirable."
After 1967 tensions between the Greek and Turkish Cypriots subsided. Instead, the main source of tension on the island came from factions within the Greek Cypriot community. Although Makarios had effectively abandoned enosis in favour of an 'attainable solution', many others continued to believe that the only legitimate political aspiration for Greek Cypriots was union with Greece.
On his arrival, Grivas began by establishing a nationalist paramilitary group known as the National Organization of Cypriot Fighters (Ethniki Organosis Kyprion Agoniston B or EOKA-B), drawing comparisons with the EOKA struggle for enosis under the British colonial administration of the 1950s.
The military junta in Athens saw Makarios as an obstacle. Makarios's failure to disband the National Guard, whose officer class was dominated by mainland Greeks, had meant the junta had practical control over the Cypriot military establishment, leaving Makarios isolated and a vulnerable target.
During the first Turkish invasion, Turkish troops invaded Cyprus territory on 20 July 1974, invoking its rights under the Treaty of Guarantee. This expansion of Turkish-occupied zone violated International Law as well as the Charter of the United Nations. Turkish troops managed to capture 3% of the island which was accompanied by the burning of the Turkish Cypriot quarter, as well as the raping and killing of women and children. A temporary cease-fire followed which was mitigated by the UN Security Council. Subsequently, the Greek military Junta collapsed on July 23, 1974, and peace talks commenced in which a democratic government was installed. The Resolution 353 was broken after Turkey attacked a second time and managed to get a hold of 37% of Cyprus territory. The Island of Cyprus was appointed a Buffer Zone by the United Nations, which divided the island into two zones through the 'Green Line' and put an end to the Turkish invasion. Although Turkey announced that the occupied areas of Cyprus to be called the Federated Turkish State in 1975, it is not legitimised on a worldwide political scale. The United Nations called for the international recognition of independence for the Republic of Cyprus in the Security Council Resolution 367.
In the years after the Turkish invasion of northern Cyprus one can observe a history of failed talks between the two parties. The 1983 declaration of the independent Turkish Republic of Cyprus resulted in a rise of inter-communal tensions and made it increasingly hard to find mutual understanding. With Cyprus' interest of a possible EU membership and a new UN Secretary-General Kofi Annan in 1997 new hopes arose for a fresh start. International involvement from sides of the US and UK, wanting a solution to the Cyprus dispute prior to the EU accession led to political pressures for new talks. The believe that an accession without a solution would threaten Greek-Turkish relations and acknowledge the partition of the island would direct the coming negotiations.
Over the course of two years a concrete plan, the Annan plan was formulated. In 2004 the fifth version agreed upon from both sides and with the endorsement of Turkey, US, UK and EU then was presented to the public and was given a referendum in both Cypriot communities to assure the legitimisation of the resolution. The Turkish Cypriots voted with 65% for the plan, however the Greek Cypriots voted with a 76% majority against. The Annan plan contained multiple important topics. Firstly it established a confederation of two separate states called the United Cyprus Republic. Both communities would have autonomous states combined under one unified government. The members of parliament would be chosen according to the percentage in population numbers to ensure a just involvement from both communities. The paper proposed a demilitarisation of the island over the next years. Furthermore it agreed upon a number of 45000 Turkish settlers that could remain on the island. These settlers became a very important issue concerning peace talks. Originally the Turkish government encouraged Turks to settle in Cyprus providing transfer and property, to establish a counterpart to the Greek Cypriot population due to their 1 to 5 minority. With the economic situation many Turkish-Cypriot decided to leave the island, however their departure is made up by incoming Turkish settlers leaving the population ratio between Turkish Cypriots and Greek Cypriots stable. However all these points where criticised and as seen in the vote rejected mainly by the Greek Cypriots. These name the dissolution of the „Republic of Cyprus", economic consequences of a reunion and the remaining Turkish settlers as reason. Many claim that the plan was indeed drawing more from Turkish-Cypriot demands then Greek-Cypriot interests. Taking in consideration that the US wanted to keep Turkey as a strategic partner in future Middle Eastern conflicts.
A week after the failed referendum the Republic of Cyprus joined the EU. In multiple instances the EU tried to promote trade with Northern Cyprus but without internationally recognised ports this spiked a grand debate. Both side endure their intention of negotiations, however without the prospect of any new compromises or agreements the UN is unwilling to start the process again. Since 2004 negotiations took place in numbers but without any results, both sides are strongly holding on to their position without an agreeable solution in sight that would suit both parties.
View of NYC and Brooklyn Bridge from Brooklyn.
Using the skyline that included the bridge, I doubled the width (canvas size in photoshop) and then copied the image and added the copy end to end with the original. Then make the height equal to the width, turn it 180 and then filter/polar coordinates. This is the first time I tried that, and it looks like it might be fun to do on some more photos.
Mayako Nakamura solo show
One equals Two equals One (II)
2016.06.20-25
Gallery Hinoki B,C Kyobashi, Tokyo
中村眞弥子展 ふたごのかたち
2016.06.20-25
ギャラリー檜 B,C 東京
●ふたごのかたち
ギャラリー檜B・Cにて 個展 “ふたごの部屋” を開催してから 5年の歳月が経ち、再びこの ふたごの空間に戻ってくることができました。
等身大の大小の絵巻物。平な画面はまるく巻かれて筒状になります。
うつわの曲面に描かれた直線。水と墨と紙と土。連続と瞬間。類似・相対、どちらも持つもの。
様々な画材を用いた平面作品と磁器など10点ほどを展示いたします。
”ふたつ・ふたご” という言葉をテーマに、比べてみたり並べたり。いくつもの”ふたつ”を お楽しみいただければ幸いです。
A quick trip to Palmer yesterday...on the way out, fog lay heavy over the Knik River area. By the time I was headed back home (Anchorage), the fog was quickly dissipating.
But the real reason for the photo...to test the accuracy of my GPS unit. Pretty darn accurate! Check out the map. :-)
When it comes to leaves, not all greens are equal.
Although autumn gets all the headlines when it comes to shifting foliage color, from the moment leaves sprout in the spring the leaves are actually changing color. In their early spring days, the greens are a buzzing electric yellow-green. As spring ends, they achieve maximum green-ness, like they are auditioning for a Ring of Kerry travel brochure. By mid-summer, the greens darken and they also grow more dense and opaque. The bright summer sun doesn't cut through the dense tree branches lined with thick, full leaves. As summer draws to the end, the chlorophyll drops and the leaves shift to a pear-like translucent yellow-green color.
It has helped my photography a great deal to notice these more subtle changes throughout the summer. This time of year I can see fall is on the horizon by watching the evening sun push through the backlit leaves. And while fall is coming, I made this photo early in the morning on a late spring day. The greens were very green that day. Green green. I was wandering along some nearby trails in a state forest with no destination or subject in mind. It's not a big forest, and I have been there many times before, but because it has such a rich intricate web of trails, it's easy to get a little lost, and easy to find your way out. It's also easy to find little spots you've never seen before. At some point, I turned around and noticed this tunnel shaft below the canopy and above the understory and took a moment to appreciate the new color spring had brought to the woods. After a long winter photographing bare branches, the beautiful green leaves were back to fill the frame.
Bracknell Camera Club Treasure Hunt - Theme 21 (June) Mismatch. What does this tell me? That it's okay to be different and stand out from the crowd. But please ... equal rights.
#HDMB17 is intent on being the most diverse star car show ever, and they even have the Ghostbusters re-boot Ecto-1 proudly on display...
It's also prominently on display in the bargain movie bin at your local Walmart.
Hot Wheels Retro Entertainment
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Fish, any of approximately 34,000 species of vertebrate animals (phylum Chordata) found in the fresh and salt waters of the world. Living species range from the primitive jawless lampreys and hagfishes through the cartilaginous sharks, skates, and rays to the abundant and diverse bony fishes. Most fish species are cold-blooded; however, one species, the opah (Lampris guttatus), is warm-blooded.
The term fish is applied to a variety of vertebrates of several evolutionary lines. It describes a life-form rather than a taxonomic group. As members of the phylum Chordata, fish share certain features with other vertebrates. These features are gill slits at some point in the life cycle, a notochord, or skeletal supporting rod, a dorsal hollow nerve cord, and a tail. Living fishes represent some five classes, which are as distinct from one another as are the four classes of familiar air-breathing animals—amphibians, reptiles, birds, and mammals. For example, the jawless fishes (Agnatha) have gills in pouches and lack limb girdles. Extant agnathans are the lampreys and the hagfishes. As the name implies, the skeletons of fishes of the class Chondrichthyes (from chondr, “cartilage,” and ichthyes, “fish”) are made entirely of cartilage. Modern fish of this class lack a swim bladder, and their scales and teeth are made up of the same placoid material. Sharks, skates, and rays are examples of cartilaginous fishes. The bony fishes are by far the largest class. Examples range from the tiny seahorse to the 450-kg (1,000-pound) blue marlin, from the flattened soles and flounders to the boxy puffers and ocean sunfishes. Unlike the scales of the cartilaginous fishes, those of bony fishes, when present, grow throughout life and are made up of thin overlapping plates of bone. Bony fishes also have an operculum that covers the gill slits.
The study of fishes, the science of ichthyology, is of broad importance. Fishes are of interest to humans for many reasons, the most important being their relationship with and dependence on the environment. A more obvious reason for interest in fishes is their role as a moderate but important part of the world’s food supply. This resource, once thought unlimited, is now realized to be finite and in delicate balance with the biological, chemical, and physical factors of the aquatic environment. Overfishing, pollution, and alteration of the environment are the chief enemies of proper fisheries management, both in fresh waters and in the ocean. (For a detailed discussion of the technology and economics of fisheries, see commercial fishing.) Another practical reason for studying fishes is their use in disease control. As predators on mosquito larvae, they help curb malaria and other mosquito-borne diseases.
Fishes are valuable laboratory animals in many aspects of medical and biological research. For example, the readiness of many fishes to acclimate to captivity has allowed biologists to study behaviour, physiology, and even ecology under relatively natural conditions. Fishes have been especially important in the study of animal behaviour, where research on fishes has provided a broad base for the understanding of the more flexible behaviour of the higher vertebrates. The zebra fish is used as a model in studies of gene expression.
There are aesthetic and recreational reasons for an interest in fishes. Millions of people keep live fishes in home aquariums for the simple pleasure of observing the beauty and behaviour of animals otherwise unfamiliar to them. Aquarium fishes provide a personal challenge to many aquarists, allowing them to test their ability to keep a small section of the natural environment in their homes. Sportfishing is another way of enjoying the natural environment, also indulged in by millions of people every year. Interest in aquarium fishes and sportfishing supports multimillion-dollar industries throughout the world.
Fishes have been in existence for more than 450 million years, during which time they have evolved repeatedly to fit into almost every conceivable type of aquatic habitat. In a sense, land vertebrates are simply highly modified fishes: when fishes colonized the land habitat, they became tetrapod (four-legged) land vertebrates. The popular conception of a fish as a slippery, streamlined aquatic animal that possesses fins and breathes by gills applies to many fishes, but far more fishes deviate from that conception than conform to it. For example, the body is elongate in many forms and greatly shortened in others; the body is flattened in some (principally in bottom-dwelling fishes) and laterally compressed in many others; the fins may be elaborately extended, forming intricate shapes, or they may be reduced or even lost; and the positions of the mouth, eyes, nostrils, and gill openings vary widely. Air breathers have appeared in several evolutionary lines.
Many fishes are cryptically coloured and shaped, closely matching their respective environments; others are among the most brilliantly coloured of all organisms, with a wide range of hues, often of striking intensity, on a single individual. The brilliance of pigments may be enhanced by the surface structure of the fish, so that it almost seems to glow. A number of unrelated fishes have actual light-producing organs. Many fishes are able to alter their coloration—some for the purpose of camouflage, others for the enhancement of behavioral signals.
Fishes range in adult length from less than 10 mm (0.4 inch) to more than 20 metres (60 feet) and in weight from about 1.5 grams (less than 0.06 ounce) to many thousands of kilograms. Some live in shallow thermal springs at temperatures slightly above 42 °C (100 °F), others in cold Arctic seas a few degrees below 0 °C (32 °F) or in cold deep waters more than 4,000 metres (13,100 feet) beneath the ocean surface. The structural and, especially, the physiological adaptations for life at such extremes are relatively poorly known and provide the scientifically curious with great incentive for study.
Almost all natural bodies of water bear fish life, the exceptions being very hot thermal ponds and extremely salt-alkaline lakes, such as the Dead Sea in Asia and the Great Salt Lake in North America. The present distribution of fishes is a result of the geological history and development of Earth as well as the ability of fishes to undergo evolutionary change and to adapt to the available habitats. Fishes may be seen to be distributed according to habitat and according to geographical area. Major habitat differences are marine and freshwater. For the most part, the fishes in a marine habitat differ from those in a freshwater habitat, even in adjacent areas, but some, such as the salmon, migrate from one to the other. The freshwater habitats may be seen to be of many kinds. Fishes found in mountain torrents, Arctic lakes, tropical lakes, temperate streams, and tropical rivers will all differ from each other, both in obvious gross structure and in physiological attributes. Even in closely adjacent habitats where, for example, a tropical mountain torrent enters a lowland stream, the fish fauna will differ. The marine habitats can be divided into deep ocean floors (benthic), mid-water oceanic (bathypelagic), surface oceanic (pelagic), rocky coast, sandy coast, muddy shores, bays, estuaries, and others. Also, for example, rocky coastal shores in tropical and temperate regions will have different fish faunas, even when such habitats occur along the same coastline.
Although much is known about the present geographical distribution of fishes, far less is known about how that distribution came about. Many parts of the fish fauna of the fresh waters of North America and Eurasia are related and undoubtedly have a common origin. The faunas of Africa and South America are related, extremely old, and probably an expression of the drifting apart of the two continents. The fauna of southern Asia is related to that of Central Asia, and some of it appears to have entered Africa. The extremely large shore-fish faunas of the Indian and tropical Pacific oceans comprise a related complex, but the tropical shore fauna of the Atlantic, although containing Indo-Pacific components, is relatively limited and probably younger. The Arctic and Antarctic marine faunas are quite different from each other. The shore fauna of the North Pacific is quite distinct, and that of the North Atlantic more limited and probably younger. Pelagic oceanic fishes, especially those in deep waters, are similar the world over, showing little geographical isolation in terms of family groups. The deep oceanic habitat is very much the same throughout the world, but species differences do exist, showing geographical areas determined by oceanic currents and water masses.
All aspects of the life of a fish are closely correlated with adaptation to the total environment, physical, chemical, and biological. In studies, all the interdependent aspects of fish, such as behaviour, locomotion, reproduction, and physical and physiological characteristics, must be taken into account.
Correlated with their adaptation to an extremely wide variety of habitats is the extremely wide variety of life cycles that fishes display. The great majority hatch from relatively small eggs a few days to several weeks or more after the eggs are scattered in the water. Newly hatched young are still partially undeveloped and are called larvae until body structures such as fins, skeleton, and some organs are fully formed. Larval life is often very short, usually less than a few weeks, but it can be very long, some lampreys continuing as larvae for at least five years. Young and larval fishes, before reaching sexual maturity, must grow considerably, and their small size and other factors often dictate that they live in a habitat different than that of the adults. For example, most tropical marine shore fishes have pelagic larvae. Larval food also is different, and larval fishes often live in shallow waters, where they may be less exposed to predators.
After a fish reaches adult size, the length of its life is subject to many factors, such as innate rates of aging, predation pressure, and the nature of the local climate. The longevity of a species in the protected environment of an aquarium may have nothing to do with how long members of that species live in the wild. Many small fishes live only one to three years at the most. In some species, however, individuals may live as long as 10 or 20 or even 100 years.
Fish behaviour is a complicated and varied subject. As in almost all animals with a central nervous system, the nature of a response of an individual fish to stimuli from its environment depends upon the inherited characteristics of its nervous system, on what it has learned from past experience, and on the nature of the stimuli. Compared with the variety of human responses, however, that of a fish is stereotyped, not subject to much modification by “thought” or learning, and investigators must guard against anthropomorphic interpretations of fish behaviour.
Fishes perceive the world around them by the usual senses of sight, smell, hearing, touch, and taste and by special lateral line water-current detectors. In the few fishes that generate electric fields, a process that might best be called electrolocation aids in perception. One or another of these senses often is emphasized at the expense of others, depending upon the fish’s other adaptations. In fishes with large eyes, the sense of smell may be reduced; others, with small eyes, hunt and feed primarily by smell (such as some eels).
Specialized behaviour is primarily concerned with the three most important activities in the fish’s life: feeding, reproduction, and escape from enemies. Schooling behaviour of sardines on the high seas, for instance, is largely a protective device to avoid enemies, but it is also associated with and modified by their breeding and feeding requirements. Predatory fishes are often solitary, lying in wait to dart suddenly after their prey, a kind of locomotion impossible for beaked parrot fishes, which feed on coral, swimming in small groups from one coral head to the next. In addition, some predatory fishes that inhabit pelagic environments, such as tunas, often school.
Sleep in fishes, all of which lack true eyelids, consists of a seemingly listless state in which the fish maintains its balance but moves slowly. If attacked or disturbed, most can dart away. A few kinds of fishes lie on the bottom to sleep. Most catfishes, some loaches, and some eels and electric fishes are strictly nocturnal, being active and hunting for food during the night and retiring during the day to holes, thick vegetation, or other protective parts of the environment.
Communication between members of a species or between members of two or more species often is extremely important, especially in breeding behaviour (see below Reproduction). The mode of communication may be visual, as between the small so-called cleaner fish and a large fish of a very different species. The larger fish often allows the cleaner to enter its mouth to remove gill parasites. The cleaner is recognized by its distinctive colour and actions and therefore is not eaten, even if the larger fish is normally a predator. Communication is often chemical, signals being sent by specific chemicals called pheromones.
Many fishes have a streamlined body and swim freely in open water. Fish locomotion is closely correlated with habitat and ecological niche (the general position of the animal to its environment).
Many fishes in both marine and fresh waters swim at the surface and have mouths adapted to feed best (and sometimes only) at the surface. Often such fishes are long and slender, able to dart at surface insects or at other surface fishes and in turn to dart away from predators; needlefishes, halfbeaks, and topminnows (such as killifish and mosquito fish) are good examples. Oceanic flying fishes escape their predators by gathering speed above the water surface, with the lower lobe of the tail providing thrust in the water. They then glide hundreds of yards on enlarged, winglike pectoral and pelvic fins. South American freshwater flying fishes escape their enemies by jumping and propelling their strongly keeled bodies out of the water.
So-called mid-water swimmers, the most common type of fish, are of many kinds and live in many habitats. The powerful fusiform tunas and the trouts, for example, are adapted for strong, fast swimming, the tunas to capture prey speedily in the open ocean and the trouts to cope with the swift currents of streams and rivers. The trout body form is well adapted to many habitats. Fishes that live in relatively quiet waters such as bays or lake shores or slow rivers usually are not strong, fast swimmers but are capable of short, quick bursts of speed to escape a predator. Many of these fishes have their sides flattened, examples being the sunfish and the freshwater angelfish of aquarists. Fish associated with the bottom or substrate usually are slow swimmers. Open-water plankton-feeding fishes almost always remain fusiform and are capable of rapid, strong movement (for example, sardines and herrings of the open ocean and also many small minnows of streams and lakes).
Bottom-living fishes are of many kinds and have undergone many types of modification of their body shape and swimming habits. Rays, which evolved from strong-swimming mid-water sharks, usually stay close to the bottom and move by undulating their large pectoral fins. Flounders live in a similar habitat and move over the bottom by undulating the entire body. Many bottom fishes dart from place to place, resting on the bottom between movements, a motion common in gobies. One goby relative, the mudskipper, has taken to living at the edge of pools along the shore of muddy mangrove swamps. It escapes its enemies by flipping rapidly over the mud, out of the water. Some catfishes, synbranchid eels, the so-called climbing perch, and a few other fishes venture out over damp ground to find more promising waters than those that they left. They move by wriggling their bodies, sometimes using strong pectoral fins; most have accessory air-breathing organs. Many bottom-dwelling fishes live in mud holes or rocky crevices. Marine eels and gobies commonly are found in such habitats and for the most part venture far beyond their cavelike homes. Some bottom dwellers, such as the clingfishes (Gobiesocidae), have developed powerful adhesive disks that enable them to remain in place on the substrate in areas such as rocky coasts, where the action of the waves is great.
The methods of reproduction in fishes are varied, but most fishes lay a large number of small eggs, fertilized and scattered outside of the body. The eggs of pelagic fishes usually remain suspended in the open water. Many shore and freshwater fishes lay eggs on the bottom or among plants. Some have adhesive eggs. The mortality of the young and especially of the eggs is very high, and often only a few individuals grow to maturity out of hundreds, thousands, and in some cases millions of eggs laid.
Males produce sperm, usually as a milky white substance called milt, in two (sometimes one) testes within the body cavity. In bony fishes a sperm duct leads from each testis to a urogenital opening behind the vent or anus. In sharks and rays and in cyclostomes the duct leads to a cloaca. Sometimes the pelvic fins are modified to help transmit the milt to the eggs at the female’s vent or on the substrate where the female has placed them. Sometimes accessory organs are used to fertilize females internally—for example, the claspers of many sharks and rays.
In the females the eggs are formed in two ovaries (sometimes only one) and pass through the ovaries to the urogenital opening and to the outside. In some fishes the eggs are fertilized internally but are shed before development takes place. Members of about a dozen families each of bony fishes (teleosts) and sharks bear live young. Many skates and rays also bear live young. In some bony fishes the eggs simply develop within the female, the young emerging when the eggs hatch (ovoviviparous). Others develop within the ovary and are nourished by ovarian tissues after hatching (viviparous). There are also other methods utilized by fishes to nourish young within the female. In all live-bearers the young are born at a relatively large size and are few in number. In one family of primarily marine fishes, the surfperches from the Pacific coast of North America, Japan, and Korea, the males of at least one species are born sexually mature, although they are not fully grown.
Some fishes are hermaphroditic—an individual producing both sperm and eggs, usually at different stages of its life. Self-fertilization, however, is probably rare.
Successful reproduction and, in many cases, defense of the eggs and the young are assured by rather stereotypical but often elaborate courtship and parental behaviour, either by the male or the female or both. Some fishes prepare nests by hollowing out depressions in the sand bottom (cichlids, for example), build nests with plant materials and sticky threads excreted by the kidneys (sticklebacks), or blow a cluster of mucus-covered bubbles at the water surface (gouramis). The eggs are laid in these structures. Some varieties of cichlids and catfishes incubate eggs in their mouths.
Some fishes, such as salmon, undergo long migrations from the ocean and up large rivers to spawn in the gravel beds where they themselves hatched (anadromous fishes). Some, such as the freshwater eels (family Anguillidae), live and grow to maturity in fresh water and migrate to the sea to spawn (catadromous fishes). Other fishes undertake shorter migrations from lakes into streams, within the ocean, or enter spawning habitats that they do not ordinarily occupy in other ways.
The basic structure and function of the fish body are similar to those of all other vertebrates. The usual four types of tissues are present: surface or epithelial, connective (bone, cartilage, and fibrous tissues, as well as their derivative, blood), nerve, and muscle tissues. In addition, the fish’s organs and organ systems parallel those of other vertebrates.
The typical fish body is streamlined and spindle-shaped, with an anterior head, a gill apparatus, and a heart, the latter lying in the midline just below the gill chamber. The body cavity, containing the vital organs, is situated behind the head in the lower anterior part of the body. The anus usually marks the posterior termination of the body cavity and most often occurs just in front of the base of the anal fin. The spinal cord and vertebral column continue from the posterior part of the head to the base of the tail fin, passing dorsal to the body cavity and through the caudal (tail) region behind the body cavity. Most of the body is of muscular tissue, a high proportion of which is necessitated by swimming. In the course of evolution this basic body plan has been modified repeatedly into the many varieties of fish shapes that exist today.
The skeleton forms an integral part of the fish’s locomotion system, as well as serving to protect vital parts. The internal skeleton consists of the skull bones (except for the roofing bones of the head, which are really part of the external skeleton), the vertebral column, and the fin supports (fin rays). The fin supports are derived from the external skeleton but will be treated here because of their close functional relationship to the internal skeleton. The internal skeleton of cyclostomes, sharks, and rays is of cartilage; that of many fossil groups and some primitive living fishes is mostly of cartilage but may include some bone. In place of the vertebral column, the earliest vertebrates had a fully developed notochord, a flexible stiff rod of viscous cells surrounded by a strong fibrous sheath. During the evolution of modern fishes the rod was replaced in part by cartilage and then by ossified cartilage. Sharks and rays retain a cartilaginous vertebral column; bony fishes have spool-shaped vertebrae that in the more primitive living forms only partially replace the notochord. The skull, including the gill arches and jaws of bony fishes, is fully, or at least partially, ossified. That of sharks and rays remains cartilaginous, at times partially replaced by calcium deposits but never by true bone.
The supportive elements of the fins (basal or radial bones or both) have changed greatly during fish evolution. Some of these changes are described in the section below (Evolution and paleontology). Most fishes possess a single dorsal fin on the midline of the back. Many have two and a few have three dorsal fins. The other fins are the single tail and anal fins and paired pelvic and pectoral fins. A small fin, the adipose fin, with hairlike fin rays, occurs in many of the relatively primitive teleosts (such as trout) on the back near the base of the caudal fin.
The skin of a fish must serve many functions. It aids in maintaining the osmotic balance, provides physical protection for the body, is the site of coloration, contains sensory receptors, and, in some fishes, functions in respiration. Mucous glands, which aid in maintaining the water balance and offer protection from bacteria, are extremely numerous in fish skin, especially in cyclostomes and teleosts. Since mucous glands are present in the modern lampreys, it is reasonable to assume that they were present in primitive fishes, such as the ancient Silurian and Devonian agnathans. Protection from abrasion and predation is another function of the fish skin, and dermal (skin) bone arose early in fish evolution in response to this need. It is thought that bone first evolved in skin and only later invaded the cartilaginous areas of the fish’s body, to provide additional support and protection. There is some argument as to which came first, cartilage or bone, and fossil evidence does not settle the question. In any event, dermal bone has played an important part in fish evolution and has different characteristics in different groups of fishes. Several groups are characterized at least in part by the kind of bony scales they possess.
Scales have played an important part in the evolution of fishes. Primitive fishes usually had thick bony plates or thick scales in several layers of bone, enamel, and related substances. Modern teleost fishes have scales of bone, which, while still protective, allow much more freedom of motion in the body. A few modern teleosts (some catfishes, sticklebacks, and others) have secondarily acquired bony plates in the skin. Modern and early sharks possessed placoid scales, a relatively primitive type of scale with a toothlike structure, consisting of an outside layer of enamel-like substance (vitrodentine), an inner layer of dentine, and a pulp cavity containing nerves and blood vessels. Primitive bony fishes had thick scales of either the ganoid or the cosmoid type. Cosmoid scales have a hard, enamel-like outer layer, an inner layer of cosmine (a form of dentine), and then a layer of vascular bone (isopedine). In ganoid scales the hard outer layer is different chemically and is called ganoin. Under this is a cosminelike layer and then a vascular bony layer. The thin, translucent bony scales of modern fishes, called cycloid and ctenoid (the latter distinguished by serrations at the edges), lack enameloid and dentine layers.
Skin has several other functions in fishes. It is well supplied with nerve endings and presumably receives tactile, thermal, and pain stimuli. Skin is also well supplied with blood vessels. Some fishes breathe in part through the skin, by the exchange of oxygen and carbon dioxide between the surrounding water and numerous small blood vessels near the skin surface.
Skin serves as protection through the control of coloration. Fishes exhibit an almost limitless range of colours. The colours often blend closely with the surroundings, effectively hiding the animal. Many fishes use bright colours for territorial advertisement or as recognition marks for other members of their own species, or sometimes for members of other species. Many fishes can change their colour to a greater or lesser degree, by movement of pigment within the pigment cells (chromatophores). Black pigment cells (melanophores), of almost universal occurrence in fishes, are often juxtaposed with other pigment cells. When placed beneath iridocytes or leucophores (bearing the silvery or white pigment guanine), melanophores produce structural colours of blue and green. These colours are often extremely intense, because they are formed by refraction of light through the needlelike crystals of guanine. The blue and green refracted colours are often relatively pure, lacking the red and yellow rays, which have been absorbed by the black pigment (melanin) of the melanophores. Yellow, orange, and red colours are produced by erythrophores, cells containing the appropriate carotenoid pigments. Other colours are produced by combinations of melanophores, erythrophores, and iridocytes.
The major portion of the body of most fishes consists of muscles. Most of the mass is trunk musculature, the fin muscles usually being relatively small. The caudal fin is usually the most powerful fin, being moved by the trunk musculature. The body musculature is usually arranged in rows of chevron-shaped segments on each side. Contractions of these segments, each attached to adjacent vertebrae and vertebral processes, bends the body on the vertebral joint, producing successive undulations of the body, passing from the head to the tail, and producing driving strokes of the tail. It is the latter that provides the strong forward movement for most fishes.
The digestive system, in a functional sense, starts at the mouth, with the teeth used to capture prey or collect plant foods. Mouth shape and tooth structure vary greatly in fishes, depending on the kind of food normally eaten. Most fishes are predacious, feeding on small invertebrates or other fishes and have simple conical teeth on the jaws, on at least some of the bones of the roof of the mouth, and on special gill arch structures just in front of the esophagus. The latter are throat teeth. Most predacious fishes swallow their prey whole, and the teeth are used for grasping and holding prey, for orienting prey to be swallowed (head first) and for working the prey toward the esophagus. There are a variety of tooth types in fishes. Some fishes, such as sharks and piranhas, have cutting teeth for biting chunks out of their victims. A shark’s tooth, although superficially like that of a piranha, appears in many respects to be a modified scale, while that of the piranha is like that of other bony fishes, consisting of dentine and enamel. Parrot fishes have beaklike mouths with short incisor-like teeth for breaking off coral and have heavy pavementlike throat teeth for crushing the coral. Some catfishes have small brushlike teeth, arranged in rows on the jaws, for scraping plant and animal growth from rocks. Many fishes (such as the Cyprinidae or minnows) have no jaw teeth at all but have very strong throat teeth.
Some fishes gather planktonic food by straining it from their gill cavities with numerous elongate stiff rods (gill rakers) anchored by one end to the gill bars. The food collected on these rods is passed to the throat, where it is swallowed. Most fishes have only short gill rakers that help keep food particles from escaping out the mouth cavity into the gill chamber.
Once reaching the throat, food enters a short, often greatly distensible esophagus, a simple tube with a muscular wall leading into a stomach. The stomach varies greatly in fishes, depending upon the diet. In most predacious fishes it is a simple straight or curved tube or pouch with a muscular wall and a glandular lining. Food is largely digested there and leaves the stomach in liquid form.
Between the stomach and the intestine, ducts enter the digestive tube from the liver and pancreas. The liver is a large, clearly defined organ. The pancreas may be embedded in it, diffused through it, or broken into small parts spread along some of the intestine. The junction between the stomach and the intestine is marked by a muscular valve. Pyloric ceca (blind sacs) occur in some fishes at this junction and have a digestive or absorptive function or both.
The intestine itself is quite variable in length, depending upon the fish’s diet. It is short in predacious forms, sometimes no longer than the body cavity, but long in herbivorous forms, being coiled and several times longer than the entire length of the fish in some species of South American catfishes. The intestine is primarily an organ for absorbing nutrients into the bloodstream. The larger its internal surface, the greater its absorptive efficiency, and a spiral valve is one method of increasing its absorption surface.
Sharks, rays, chimaeras, lungfishes, surviving chondrosteans, holosteans, and even a few of the more primitive teleosts have a spiral valve or at least traces of it in the intestine. Most modern teleosts have increased the area of the intestinal walls by having numerous folds and villi (fingerlike projections) somewhat like those in humans. Undigested substances are passed to the exterior through the anus in most teleost fishes. In lungfishes, sharks, and rays, it is first passed through the cloaca, a common cavity receiving the intestinal opening and the ducts from the urogenital system.
Oxygen and carbon dioxide dissolve in water, and most fishes exchange dissolved oxygen and carbon dioxide in water by means of the gills. The gills lie behind and to the side of the mouth cavity and consist of fleshy filaments supported by the gill arches and filled with blood vessels, which give gills a bright red colour. Water taken in continuously through the mouth passes backward between the gill bars and over the gill filaments, where the exchange of gases takes place. The gills are protected by a gill cover in teleosts and many other fishes but by flaps of skin in sharks, rays, and some of the older fossil fish groups. The blood capillaries in the gill filaments are close to the gill surface to take up oxygen from the water and to give up excess carbon dioxide to the water.
Most modern fishes have a hydrostatic (ballast) organ, called the swim bladder, that lies in the body cavity just below the kidney and above the stomach and intestine. It originated as a diverticulum of the digestive canal. In advanced teleosts, especially the acanthopterygians, the bladder has lost its connection with the digestive tract, a condition called physoclistic. The connection has been retained (physostomous) by many relatively primitive teleosts. In several unrelated lines of fishes, the bladder has become specialized as a lung or, at least, as a highly vascularized accessory breathing organ. Some fishes with such accessory organs are obligate air breathers and will drown if denied access to the surface, even in well-oxygenated water. Fishes with a hydrostatic form of swim bladder can control their depth by regulating the amount of gas in the bladder. The gas, mostly oxygen, is secreted into the bladder by special glands, rendering the fish more buoyant; the gas is absorbed into the bloodstream by another special organ, reducing the overall buoyancy and allowing the fish to sink. Some deep-sea fishes may have oils, rather than gas, in the bladder. Other deep-sea and some bottom-living forms have much-reduced swim bladders or have lost the organ entirely.
The swim bladder of fishes follows the same developmental pattern as the lungs of land vertebrates. There is no doubt that the two structures have the same historical origin in primitive fishes. More or less intermediate forms still survive among the more primitive types of fishes, such as the lungfishes Lepidosiren and Protopterus.
The circulatory, or blood vascular, system consists of the heart, the arteries, the capillaries, and the veins. It is in the capillaries that the interchange of oxygen, carbon dioxide, nutrients, and other substances such as hormones and waste products takes place. The capillaries lead to the veins, which return the venous blood with its waste products to the heart, kidneys, and gills. There are two kinds of capillary beds: those in the gills and those in the rest of the body. The heart, a folded continuous muscular tube with three or four saclike enlargements, undergoes rhythmic contractions and receives venous blood in a sinus venosus. It passes the blood to an auricle and then into a thick muscular pump, the ventricle. From the ventricle the blood goes to a bulbous structure at the base of a ventral aorta just below the gills. The blood passes to the afferent (receiving) arteries of the gill arches and then to the gill capillaries. There waste gases are given off to the environment, and oxygen is absorbed. The oxygenated blood enters efferent (exuant) arteries of the gill arches and then flows into the dorsal aorta. From there blood is distributed to the tissues and organs of the body. One-way valves prevent backflow. The circulation of fishes thus differs from that of the reptiles, birds, and mammals in that oxygenated blood is not returned to the heart prior to distribution to the other parts of the body.
The primary excretory organ in fishes, as in other vertebrates, is the kidney. In fishes some excretion also takes place in the digestive tract, skin, and especially the gills (where ammonia is given off). Compared with land vertebrates, fishes have a special problem in maintaining their internal environment at a constant concentration of water and dissolved substances, such as salts. Proper balance of the internal environment (homeostasis) of a fish is in a great part maintained by the excretory system, especially the kidney.
The kidney, gills, and skin play an important role in maintaining a fish’s internal environment and checking the effects of osmosis. Marine fishes live in an environment in which the water around them has a greater concentration of salts than they can have inside their body and still maintain life. Freshwater fishes, on the other hand, live in water with a much lower concentration of salts than they require inside their bodies. Osmosis tends to promote the loss of water from the body of a marine fish and absorption of water by that of a freshwater fish. Mucus in the skin tends to slow the process but is not a sufficient barrier to prevent the movement of fluids through the permeable skin. When solutions on two sides of a permeable membrane have different concentrations of dissolved substances, water will pass through the membrane into the more concentrated solution, while the dissolved chemicals move into the area of lower concentration (diffusion).
The kidney of freshwater fishes is often larger in relation to body weight than that of marine fishes. In both groups the kidney excretes wastes from the body, but the kidney of freshwater fishes also excretes large amounts of water, counteracting the water absorbed through the skin. Freshwater fishes tend to lose salt to the environment and must replace it. They get some salt from their food, but the gills and skin inside the mouth actively absorb salt from water passed through the mouth. This absorption is performed by special cells capable of moving salts against the diffusion gradient. Freshwater fishes drink very little water and take in little water with their food.
Marine fishes must conserve water, and therefore their kidneys excrete little water. To maintain their water balance, marine fishes drink large quantities of seawater, retaining most of the water and excreting the salt. Most nitrogenous waste in marine fishes appears to be secreted by the gills as ammonia. Marine fishes can excrete salt by clusters of special cells (chloride cells) in the gills.
There are several teleosts—for example, the salmon—that travel between fresh water and seawater and must adjust to the reversal of osmotic gradients. They adjust their physiological processes by spending time (often surprisingly little time) in the intermediate brackish environment.
Marine hagfishes, sharks, and rays have osmotic concentrations in their blood about equal to that of seawater and so do not have to drink water nor perform much physiological work to maintain their osmotic balance. In sharks and rays the osmotic concentration is kept high by retention of urea in the blood. Freshwater sharks have a lowered concentration of urea in the blood.
Endocrine glands secrete their products into the bloodstream and body tissues and, along with the central nervous system, control and regulate many kinds of body functions. Cyclostomes have a well-developed endocrine system, and presumably it was well developed in the early Agnatha, ancestral to modern fishes. Although the endocrine system in fishes is similar to that of higher vertebrates, there are numerous differences in detail. The pituitary, the thyroid, the suprarenals, the adrenals, the pancreatic islets, the sex glands (ovaries and testes), the inner wall of the intestine, and the bodies of the ultimobranchial gland make up the endocrine system in fishes. There are some others whose function is not well understood. These organs regulate sexual activity and reproduction, growth, osmotic pressure, general metabolic activities such as the storage of fat and the utilization of foodstuffs, blood pressure, and certain aspects of skin colour. Many of these activities are also controlled in part by the central nervous system, which works with the endocrine system in maintaining the life of a fish. Some parts of the endocrine system are developmentally, and undoubtedly evolutionarily, derived from the nervous system.
As in all vertebrates, the nervous system of fishes is the primary mechanism coordinating body activities, as well as integrating these activities in the appropriate manner with stimuli from the environment. The central nervous system, consisting of the brain and spinal cord, is the primary integrating mechanism. The peripheral nervous system, consisting of nerves that connect the brain and spinal cord to various body organs, carries sensory information from special receptor organs such as the eyes, internal ears, nares (sense of smell), taste glands, and others to the integrating centres of the brain and spinal cord. The peripheral nervous system also carries information via different nerve cells from the integrating centres of the brain and spinal cord. This coded information is carried to the various organs and body systems, such as the skeletal muscular system, for appropriate action in response to the original external or internal stimulus. Another branch of the nervous system, the autonomic nervous system, helps to coordinate the activities of many glands and organs and is itself closely connected to the integrating centres of the brain.
The brain of the fish is divided into several anatomical and functional parts, all closely interconnected but each serving as the primary centre of integrating particular kinds of responses and activities. Several of these centres or parts are primarily associated with one type of sensory perception, such as sight, hearing, or smell (olfaction).
The sense of smell is important in almost all fishes. Certain eels with tiny eyes depend mostly on smell for location of food. The olfactory, or nasal, organ of fishes is located on the dorsal surface of the snout. The lining of the nasal organ has special sensory cells that perceive chemicals dissolved in the water, such as substances from food material, and send sensory information to the brain by way of the first cranial nerve. Odour also serves as an alarm system. Many fishes, especially various species of freshwater minnows, react with alarm to a chemical released from the skin of an injured member of their own species.
Many fishes have a well-developed sense of taste, and tiny pitlike taste buds or organs are located not only within their mouth cavities but also over their heads and parts of their body. Catfishes, which often have poor vision, have barbels (“whiskers”) that serve as supplementary taste organs, those around the mouth being actively used to search out food on the bottom. Some species of naturally blind cave fishes are especially well supplied with taste buds, which often cover most of their body surface.
Sight is extremely important in most fishes. The eye of a fish is basically like that of all other vertebrates, but the eyes of fishes are extremely varied in structure and adaptation. In general, fishes living in dark and dim water habitats have large eyes, unless they have specialized in some compensatory way so that another sense (such as smell) is dominant, in which case the eyes will often be reduced. Fishes living in brightly lighted shallow waters often will have relatively small but efficient eyes. Cyclostomes have somewhat less elaborate eyes than other fishes, with skin stretched over the eyeball perhaps making their vision somewhat less effective. Most fishes have a spherical lens and accommodate their vision to far or near subjects by moving the lens within the eyeball. A few sharks accommodate by changing the shape of the lens, as in land vertebrates. Those fishes that are heavily dependent upon the eyes have especially strong muscles for accommodation. Most fishes see well, despite the restrictions imposed by frequent turbidity of the water and by light refraction.
Fossil evidence suggests that colour vision evolved in fishes more than 300 million years ago, but not all living fishes have retained this ability. Experimental evidence indicates that many shallow-water fishes, if not all, have colour vision and see some colours especially well, but some bottom-dwelling shore fishes live in areas where the water is sufficiently deep to filter out most if not all colours, and these fishes apparently never see colours. When tested in shallow water, they apparently are unable to respond to colour differences.
Sound perception and balance are intimately associated senses in a fish. The organs of hearing are entirely internal, located within the skull, on each side of the brain and somewhat behind the eyes. Sound waves, especially those of low frequencies, travel readily through water and impinge directly upon the bones and fluids of the head and body, to be transmitted to the hearing organs. Fishes readily respond to sound; for example, a trout conditioned to escape by the approach of fishermen will take flight upon perceiving footsteps on a stream bank even if it cannot see a fisherman. Compared with humans, however, the range of sound frequencies heard by fishes is greatly restricted. Many fishes communicate with each other by producing sounds in their swim bladders, in their throats by rasping their teeth, and in other ways.
A fish or other vertebrate seldom has to rely on a single type of sensory information to determine the nature of the environment around it. A catfish uses taste and touch when examining a food object with its oral barbels. Like most other animals, fishes have many touch receptors over their body surface. Pain and temperature receptors also are present in fishes and presumably produce the same kind of information to a fish as to humans. Fishes react in a negative fashion to stimuli that would be painful to human beings, suggesting that they feel a sensation of pain.
An important sensory system in fishes that is absent in other vertebrates (except some amphibians) is the lateral line system. This consists of a series of heavily innervated small canals located in the skin and bone around the eyes, along the lower jaw, over the head, and down the mid-side of the body, where it is associated with the scales. Intermittently along these canals are located tiny sensory organs (pit organs) that apparently detect changes in pressure. The system allows a fish to sense changes in water currents and pressure, thereby helping the fish to orient itself to the various changes that occur in the physical environment.
I don't smoke but this seems over the top. Therefore I propose that pop bottles, popcorn packaging, etc. be required to have photos of the obese on their labels. I'm sure Bloomberg would agree.
© Saúl Tuñón Loureda
El Puente de la Torre, en inglés Tower Bridge, es un puente levadizo situado en Londres que cruza el río Támesis. Se sitúa cerca de la Torre de Londres, la que le da su nombre.
El puente es mantenido por Bridge House Estates, una compañía sin ánimo de lucro bajo la tutela de Corporation of London, el ayuntamiento de la City de Londres.
Durante la segunda parte del siglo XIX, el desarrollo económico en el este de Londres llevó a la necesidad de un nuevo paso sobre el río, más abajo del Puente de Londres. No se podía construir el tradicional puente fijo debido a que cortaría el acceso al puerto que en esa época se situaba en el Pool of London (el Puerto de Londres original), entre el Puente de Londres y la Torre de Londres. Un túnel bajo el Támesis, Tower Subway, fue inaugurado en 1870, pero sólo servía para tráfico peatonal.
En 1876 se creó un comité especial para encontrar una solución al paso sobre el río, que convocó un concurso para elegir el diseño del futuro puente. Más de 50 diseños fueron propuestos, incluido uno de Sir Joseph Bazalgette. La evaluación de los diseños estuvo rodeada de controversia, y no fue hasta 1884 cuando el creado por Horace Jones, el Arquitecto de la Ciudad, fue aprobado.
El diseño de Jones era un puente levadizo de 244 m de longitud y 7 m de anchura, con dos torres de 65 m de altura. La distancia central de 61 m entre las dos torres se divide en dos levas, que pueden elevarse hasta un ángulo de 83 grados para permitir pasar el tráfico fluvial. A pesar de que cada leva pesa más de 1000 toneladas, están contrapesadas para minimizar la energía requerida para elevarlas, lo que lleva un minuto. El mecanismo hidráulico original utilizaba agua a presión almacenada en seis acumuladores. El agua era bombeada dentro de los acumuladores mediante motores de vapor. Actualmente, la maquinaria hidráulica original todavía abre el puente, aunque ha sido modificado para utilizar aceite en lugar de agua, y motores eléctricos han sustituido el lugar de las máquinas de vapor y los acumuladores. El antiguo mecanismo está abierto al público. El puente puede cargar más de 2000 toneladas.
Cultura popular
Ha aparecido en películas tales como Spice World (1997), The Parent Trap, La momia, Harry Potter y la Orden del Fénix, El hombre lobo (2010), Sherlock Holmes (2009) y también en series de anime tales como Kinnikuman (Musculman) y Kuroshitsuji, siendo éste el "poder especial" de Robin Mask, también en los videojuegos, como Midnight Club: Street Racing y tuvo dos apariciones durante la Ceremonia de Apertura de los Juegos Olímpicos de Londres 2012, pasando por ahí el helicóptero que llevaba a la reina Isabel II acompañada de James Bond y también mostrando el relevo de la antorcha olímpica en su llegada al parque olímpico a través del Río Támesis a cargo de una deportista y David Beckham. Y musicalmente ha salido en los videoclips Midnight Memories de la banda One Direction y en This is love, de will.i.am.
es.wikipedia.org/wiki/Puente_de_la_Torre
Tower Bridge (built 1886–1894) is a combined bascule and suspension bridge in London. The bridge crosses the River Thames close to the Tower of London and has become an iconic symbol of London. Tower Bridge is one of five London bridges now owned and maintained by the Bridge House Estates, a charitable trust overseen by the City of London Corporation. It is the only one of the Trust's bridges not to connect the City of London directly to the Southwark bank, the northern landfall being in Tower Hamlets.
The bridge consists of two bridge towers tied together at the upper level by two horizontal walkways, designed to withstand the horizontal tension forces exerted by the suspended sections of the bridge on the landward sides of the towers. The vertical components of the forces in the suspended sections and the vertical reactions of the two walkways are carried by the two robust towers. The bascule pivots and operating machinery are housed in the base of each tower. The bridge's present colour scheme dates from 1977, when it was painted red, white and blue for Queen Elizabeth II's Silver Jubilee. Originally it was painted a mid greenish-blue colour.
The bridge deck is freely accessible to both vehicles and pedestrians, whilst the bridge's twin towers, high-level walkways and Victorian engine rooms form part of the Tower Bridge Exhibition, for which an admission charge is made. The nearest London Underground tube stations are Tower Hill on the Circle and District lines, London Bridge on the Jubilee and Northern lines and Bermondsey on the Jubilee line, and the nearest Docklands Light Railway station is Tower Gateway. The nearest National Rail stations are at Fenchurch Street and London Bridge.
In the second half of the 19th century, increased commercial development in the East End of London led to a requirement for a new river crossing downstream of London Bridge. A traditional fixed bridge at street level could not be built because it would cut off access by sailing ships to the port facilities in the Pool of London, between London Bridge and the Tower of London.
A Special Bridge or Subway Committee was formed in 1877, chaired by Sir Albert Joseph Altman, to find a solution to the river crossing problem. It opened the design of the crossing to public competition. Over 50 designs were submitted, including one from civil engineer Sir Joseph Bazalgette. The evaluation of the designs was surrounded by controversy, and it was not until 1884 that a design submitted by Sir Horace Jones, the City Architect (who was also one of the judges),[3] was approved.
Jones' engineer, Sir John Wolfe Barry, devised the idea of a bascule bridge with two bridge towers built on piers. The central span was split into two equal bascules or leaves, which could be raised to allow river traffic to pass. The two side-spans were suspension bridges, with the suspension rods anchored both at the abutments and through rods contained within the bridge's upper walkways.
Construction started in 1887 and took eight years with five major contractors – Sir John Jackson (foundations), Baron Armstrong (hydraulics), William Webster, Sir H.H. Bartlett, and Sir William Arrol & Co.[4] – and employed 432 construction workers. E W Crutwell was the resident engineer for the construction.[5]
Two massive piers, containing over 70,000 tons of concrete,[3] were sunk into the riverbed to support the construction. Over 11,000 tons of steel provided the framework for the towers and walkways.[3] This was then clad in Cornish granite and Portland stone, both to protect the underlying steelwork and to give the bridge a pleasing appearance.
Jones died in 1886 and George D. Stevenson took over the project.[3] Stevenson replaced Jones's original brick façade with the more ornate Victorian Gothic style, which makes the bridge a distinctive landmark, and was intended to harmonise the bridge with the nearby Tower of London.[5] The total cost of construction was £1,184,000[5] (equivalent to £120 million in 2015).[6]
Opening
The bridge was officially opened on 30 June 1894 by The Prince of Wales (the future King Edward VII), and his wife, The Princess of Wales (Alexandra of Denmark).[7]
The bridge connected Iron Gate, on the north bank of the river, with Horselydown Lane, on the south – now known as Tower Bridge Approach and Tower Bridge Road, respectively.[5] Until the bridge was opened, the Tower Subway – 400 m to the west – was the shortest way to cross the river from Tower Hill to Tooley Street in Southwark. Opened in 1870, Tower Subway was among the world's earliest underground ("tube") railways, but it closed after just three months and was re-opened as a pedestrian foot tunnel. Once Tower Bridge was open, the majority of foot traffic transferred to using the bridge, there being no toll to pay to use it. Having lost most of its income, the tunnel was closed in 1898.[8]
The high-level open air walkways between the towers gained an unpleasant reputation as a haunt for prostitutes and pickpockets; as they were only accessible by stairs they were seldom used by regular pedestrians, and were closed in 1910.[citation needed]
Second World War
A Short Sunderland of No. 201 Squadron RAF moored at Tower Bridge during the 1956 commemoration of the Battle of Britain
During the Second World War and as a precaution against the existing engines being damaged by enemy action, a third engine was installed in 1942: a 150 hp horizontal cross-compound engine, built by Vickers Armstrong Ltd. at their Elswick works in Newcastle upon Tyne. It was fitted with a flywheel having a 9-foot (2.7 m) diameter and weighing 9 tons, and was governed to a speed of 30 rpm. The engine became redundant when the rest of the system was modernised in 1974, and was donated to the Forncett Industrial Steam Museum by the Corporation of the City of London.
Modernisation
In 1974, the original operating mechanism was largely replaced by a new electro-hydraulic drive system, designed by BHA Cromwell House, with the original final pinions driven by modern hydraulic motors and gearing. In 1982, the Tower Bridge Exhibition opened, housed in the bridge's twin towers, the long-closed high-level walkways and the Victorian engine rooms. The latter still house the original steam engines and some of the original hydraulic machinery.[10][11][12]
A computer system was installed in 2000 to control the raising and lowering of the bascules remotely. It proved unreliable, resulting in the bridge being stuck in the open or closed positions on several occasions during 2005 until its sensors were replaced.[13]
2008–2012 facelift
In April 2008 it was announced that the bridge would undergo a 'facelift' costing £4 million, and taking four years to complete. The work entailed stripping off the existing paint down to bare metal and repainting in blue and white. Each section was enshrouded in scaffolding and plastic sheeting to prevent the old paint falling into the Thames and causing pollution. Starting in mid-2008, contractors worked on a quarter of the bridge at a time to minimise disruption, but some road closures were inevitable. It is intended that the completed work will stand for 25 years.[14]
The renovation of the walkway interior was completed in mid-2009. Within the walkways a versatile new lighting system has been installed, designed by Eleni Shiarlis, for when the walkways are in use for exhibitions or functions. The new system provides for both feature and atmospheric lighting, the latter using bespoke RGB LED luminares, designed to be concealed within the bridge superstructure and fixed without the need for drilling (these requirements as a result of the bridge's Grade I status).[15]
The renovation of the four suspension chains was completed in March 2010 using a state-of-the-art coating system requiring up to six different layers of 'paint'.
Commonwealth Peace Keeper Marines
The CPKF Marines were commissioned to for space and low atmospheric combat.
The CPKF Marines are armed with the "Replicant Trooper Rifle" was purchased from The Little Arms Shop, Netherlands.
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Photograph Copyright © 2008-present Joriel Jimenez
Please use with permission and full attribution
I'm going to participate in a photo competition of the University of Antwerp. The topic is "equality". So the photo has to express that the university gives equal opportunities to everyone, whatever their origin, religion, appearance, etc. may be.
Do you think this is a good shot for the contest?
And btw, I passed 5 of the 6 exams. I have only one retake, organic chemistry. I'm pretty happy with my results, if you know that only 16 students of the 170, passed al their exams. And 30% of the students didn't succeed for any course.