Technology

In general, "technology" is the relationship that society has with its tools and crafts, and to what extent society can control its environment. The Merriam-Webster dictionary offers a definition of the term: "the practical application of knowledge especially in a particular area" and "a capability given by the practical application of knowledge".[1] Ursula Franklin, in her 1989 "Real World of Technology" lecture, gave another definition of the concept; it is "practice, the way we do things around here".[2] The term is often used to imply a specific field of technology, or to refer to high technology, rather than technology as a whole.[3] However, the term is mostly used in three different contexts: when referring to a tool (or machine); a technique; the cultural force; or a combination of the three.

Technology can be most broadly defined as the entities, both material and immaterial, created by the application of mental and physical effort in order to achieve some value. In this usage, technology refers to tools and machines that may be used to solve real-world problems. It is a far-reaching term that may include simple tools, such as a crowbar or wooden spoon, or more complex machines, such as a space station or particle accelerator. Tools and machines need not be material; virtual technology, such as computer software and business methods, fall under this definition of technology.[4]

The word "technology" can also be used to refer to a collection of techniques. In this context, it is the current state of humanity's knowledge of how to combine resources to produce desired products, to solve problems, fulfil needs, or satisfy wants; it includes technical methods, skills, processes, techniques, tools and raw materials. When combined with another term, such as "medical technology" or "space technology", it refers to the state of the respective field's knowledge and tools, and "state-of-the-art technology" refers to the latest high technology available to humanity in any given field.

Technology can be viewed as an activity that forms or changes culture.[5] A modern example is the rise of communication technology, which has lessened barriers to human interaction and, as a result, has helped spawn new subcultures; the rise of cyberculture has, at its basis, the development of the Internet and the computer. Not all technology enhances culture in a creative way; technology can also help facilitate political oppression and war via tools such as guns. As a cultural activity, technology predates both science and engineering, each of which formalize some aspects of technological endeavor.

[edit] Science, engineering and technology

The distinction between science, engineering and technology is not always clear. Science is the reasoned investigation or study of phenomena, aimed at discovering enduring principles among elements of the phenomenal world by employing formal techniques such as the scientific method.[6] Technologies are not usually exclusively products of science, because they have to satisfy requirements such as utility, usability and safety.

Engineering is the goal-oriented process of designing and building tools and systems to exploit natural phenomena for practical human means, using results and techniques from science. The development of technology may draw upon many fields of knowledge, including scientific, engineering, mathematical, linguistic, and historical knowledge, to achieve some practical result.

Technology is often a consequence of science and engineering — although technology as a human activity preceeds the two fields. For example, science might study the flow of electrons in electrical conductors, by using already-existing tools and knowledge. This new-found knowledge may then be used by engineers to create new tools and machines, such as semiconductors, computers, and other forms of advanced technology. In this sense, scientists and engineers may both be considered technologists; the three fields are often considered as one for the purposes of research and reference.[7]

[edit] History

Main articles: History of technology and Timeline of invention

[edit] Prehistory (— 5000BCE)
A Paleolithic flint spear and sword, used by early humans for hunting and fighting.
A Paleolithic flint spear and sword, used by early humans for hunting and fighting.

The history of technology is at least as old as humankind, if not older. Primitive tools have been discovered with almost every find of ancient human remains.[8] Archaeologists have uncovered tools made by humanity's ancestors more than two million years ago,[9] and the earliest direct evidence of tool usage, found in the Great Rift Valley, dates back to 2.5 million years ago.[10] The hunter-gatherer lifestyle, characteristic of the Lower Paleolithic era, involved a limited use of technology, and the earliest tools, such as the handaxe and scraper, were developed to aid early humans in that role.[11][12]

The discovery and utilisation of fire, a simple energy source with many profound uses, was a turning point in the technological evolution of humankind.[13] The exact date of its discovery is not known; evidence of burnt animal bones at the Cradle of Humankind site suggests that the domestication of fire occurred before 1,000,000 BCE;[14] scholarly consensus indicates that Homo erectus had controlled fire by between 500,000 BCE and 400,000 BCE.[15][16] Fire, fueled with wood and charcoal, allowed early humans to cook their food to increase its digestibility, improving its nutrient value and broadening the number of foods that could be eaten.[17]

Other technological advances made during the Paleolithic era were clothing and shelter; the adoption of both technologies cannot be dated exactly, but they were key to humanity's progress. As the Paleolithic era progressed, dwellings became more sophisticated and more elaborate; as early as 380,000 BCE, humans were constructing temporary wood huts.[18][19] Clothing, adapted from the fur and hides of hunted animals, helped humanity expand into colder regions; humans began to migrate out of Africa by 200,000 BCE and into other continents, such as Eurasia.[20]

A more sophisticated toolmaking technique was developed at around the same time. Known as the prepared-core technique, it enabled the creation of more controlled and consistent flakes, which could be hafted onto wooden shafts as arrows.[citation needed] This new technique helped to form more efficient composite tools and weapons, and combined with fire, this new technique enabled humans to hunt more effectively; wooden spears with fire-hardened points have been found as early as 250,000 BCE.[citation needed]

Technological developments in the Upper Paleolithic era, helped by the development of language, included advances in flint tool manufacturing, with industries based on fine blades rather than simple flakes.[citation needed] Humans began to work bones, antler, and hides, as evidenced by burins and racloirs produced during this period.[citation needed]

[edit] Ancient history (5000BCE — 0CE)
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Continuing improvements led to the furnace and bellows and provided the ability to smelt and forge native metals (naturally occurring in relatively pure form).[21] Gold, copper, silver, and lead, were such early metals. The advantages of copper tools over stone, bone, and wooden tools were quickly apparent to early humans, and native copper was probably used from near the beginning of Neolithic times (about 8000 BCE). Native copper does not naturally occur in large amounts, but copper ores are quite common and some of them produce metal easily when burned in wood or charcoal fires. Eventually, the working of metals led to the discovery of alloys such as bronze and brass (about 4000 BCE). The first uses of iron alloys such as steel dates to around 1400 BCE.

Meanwhile, humans were learning to harness other forms of energy. The earliest known use of wind power is the sailboat. The earliest record of a ship under sail is shown on an Egyptian pot dating back to 3200 BCE. From prehistoric times, Egyptians probably used "the power of the Nile" annual floods to irrigate their lands, gradually learning to regulate much of it through purposely-built irrigation channels and 'catch' basins. Similarly, the early peoples of Mesopotamia, the Sumerians, learned to use the Tigris and Euphrates rivers for much the same purposes. But more extensive use of wind and water (and even human) power required another invention.
The wheel was invented in circa 4000 BCE.
The wheel was invented in circa 4000 BCE.

According to archaeologists, the wheel was invented around 4000 B.C. The wheel was likely independently invented in Mesopotamia (in present-day Iraq) as well. Estimates on when this may have occurred range from 5500 to 3000 B.C., with most experts putting it closer to 4000 B.C. The oldest artifacts with drawings that depict wheeled carts date from about 3000 B.C.; however, the wheel may have been in use for millennia before these drawings were made. There is also evidence from the same period of time that wheels were used for the production of pottery. (Note that the original potter's wheel was probably not a wheel, but rather an irregularly shaped slab of flat wood with a small hollowed or pierced area near the center and mounted on a peg driven into the earth. It would have been rotated by repeated tugs by the potter or his assistant.) More recently, the oldest-known wooden wheel in the world was found in the Ljubljana marshes of Slovenia.[22]

The invention of the wheel revolutionized activities as disparate as transportation, war, and the production of pottery (for which it may have been first used). It didn't take long to discover that wheeled wagons could be used to carry heavy loads and fast (rotary) potters' wheels enabled early mass production of pottery. But it was the use of the wheel as a transformer of energy (through water wheels, windmills, and even treadmills) that revolutionized the application of nonhuman power sources.

[edit] Modern history (0CE —)

Tools include both simple machines (such as the lever, the screw, and the pulley), and more complex machines (such as the clock, the engine, the electric generator and the electric motor, the computer, radio, and the Space Station, among many others).
An integrated circuit — a key foundation for modern computers.
An integrated circuit — a key foundation for modern computers.

As tools increase in complexity, so does the type of knowledge needed to support them. Complex modern machines require libraries of written technical manuals of collected information that has continually increased and improved — their designers, builders, maintainers, and users often require the mastery of decades of sophisticated general and specific training. Moreover, these tools have become so complex that a comprehensive infrastructure of technical knowledge-based lesser tools, processes and practices (complex tools in themselves) exist to support them, including engineering, medicine, and computer science. Complex manufacturing and construction techniques and organizations are needed to construct and maintain them. Entire industries have arisen to support and develop succeeding generations of increasingly more complex tools.

Olympics

There are many myths and legends surrounding the origin of the ancient Olympic Games. The most popular legend describes that Heracles was the creator of the Olympic Games, and built the Olympic stadium and surrounding buildings as an honor to his father Zeus, after completing his 12 labors. According to that legend he walked in a straight line for 400 strides and called this distance a "stadion" (Greek: "Στάδιον")- (Roman: "stadium") (Modern English: "Stage") that later also became a distance calculation unit. This is also why a modern stadium is 400 meters in circumference length (1 stadium = 400 m). Another myth associates the first Games with the ancient Greek concept of ἐκεχειρία (ekecheiria) or Olympic Truce. The date of the Games' inception based on the count of years in Olympiads is reconstructed as 776 BC, although scholars' opinions diverge between dates as early as 884 BC and as late as 704 BC.

From then on, the Games quickly became much more important throughout ancient Greece, reaching their zenith in the sixth and fifth centuries BC. The Olympics were of fundamental religious importance, contests alternating with sacrifices and ceremonies honouring both Zeus (whose colossal statue stood at Olympia), and Pelops, divine hero and mythical king of Olympia famous for his legendary chariot race, in whose honour the games were held. The number of events increased to twenty, and the celebration was spread over several days. Winners of the events were greatly admired and were immortalised in poems and statues.[7] The Games were held every four years, and the period between two celebrations became known as an 'Olympiad'. The Greeks used Olympiads as one of their methods to count years. The most famous Olympic athlete lived in these times: the sixth century BC wrestler Milo of Croton is the only athlete in history to win a victory in six Olympics.[8]

The Games gradually declined in importance as the Romans gained power in Greece. When Christianity became the official religion of the Roman Empire, the Olympic Games were seen as a pagan festival and in discord with Christian ethics, and in 393 AD the emperor Theodosius I outlawed the Olympics, ending a thousand-year tradition.[9]

During the ancient times normally only young men could participate.[8] Competitors were usually naked, not only as the weather was appropriate but also as the festival was meant to be, in part, a celebration of the achievements of the human body. Upon winning the games, the victor would have not only the prestige of being in first place but would also be presented with a crown of olive leaves. The olive branch is a sign of hope and peace.[10]

Even though the bearing of a torch formed an integral aspect of Greek ceremonies, the ancient Olympic Games did not include it, nor was there a symbol formed by interconnecting rings. These Olympic symbols were introduced as part of the modern Olympic Games.

Revival

In the early seventeenth century, an "Olympick Games" sports festival was run for several years at Chipping Campden in the English Cotswolds, and the present day local Cotswold Games trace their origin to this festival. In 1850, an "Olympian" sports festival was begun at Much Wenlock in Shropshire, England, which also continues to this day as the Wenlock Olympian Society Annual Games. Later, similar events were organised in France and Greece, but these were all small-scale and certainly not international.

The interest in reviving the Olympics as an international event grew when the ruins of ancient Olympia were uncovered by German archaeologists in the mid-nineteenth century. At the same time, Pierre de Coubertin was searching for a reason for the French defeat in the Franco-Prussian War (1870–1871). He thought the reason was that the French had not received proper physical education, and sought to improve this. Coubertin also sought a way to bring nations closer together, to have the youth of the world compete in sports, rather than fight in war. In 1890 he attended a festival of the Wenlock Olympian Society, and decided that the recovery of the Olympic Games would achieve both of his goals.

In a congress at the Sorbonne University, in Paris, France, held from June 16 to June 23, 1894 he presented his ideas to an international audience. On the last day of the congress, it was decided that the first modern Olympic Games would take place in 1896 in Athens, in the country of their birth. To organise the Games, the International Olympic Committee (IOC) was established, with the Greek Demetrius Vikelas as its first president.

The total number of athletes at the the first modern Olympic Games, less than 250, seems small by modern standards, but the games were the largest international sports event ever held until that time. The Greek officials and public were also very enthusiastic, and they even proposed to have the monopoly of organizing the Olympics. The IOC decided differently, however, and the second Olympic Games took place in Paris, France. Paris was also the first Olympic Games where women were allowed to compete.

Modern Olympics

Main articles: Summer Olympic Games and Winter Olympic Games

After the initial success, the Olympics struggled. The celebrations in Paris (1900) and St. Louis (1904) were overshadowed by the world's fair exhibitions in which they were included. The so-called Intercalated Games (because of their off-year status, as 1906 is not divisible by four) were held in 1906 in Athens, as the first of an alternating series of Athens-held Olympics. Although originally the IOC recognised and supported these games, they are currently not recognised by the IOC as Olympic Games, which has given rise to the explanation that they were intended to mark the 10th anniversary of the modern Olympics. The 1906 Games again attracted a broad international field of participants—in 1904, 80% had been American—--and great public interest, thereby marking the beginning of a rise in popularity and size of the Games.

From the 241 participants from 14 nations in 1896, the Games grew to nearly 11,100 competitors from 202 countries at the 2004 Summer Olympics in Athens. The number of competitors at the Winter Olympics is much smaller than at the Summer Games; at the 2006 Winter Olympics in Turin Italy, 2,633 athletes from 80 countries competed in 84 events.

The Olympics are one of the largest media events. In Sydney in 2000 there were over 16,000 broadcasters and journalists, and an estimated 3.8 billion viewers watched the games on television. The growth of the Olympics is one of the largest problems the Olympics face today. Although allowing professional athletes and attracting sponsorships from major international companies solved financial problems in the 1980s, the large number of athletes, media and spectators makes it difficult and expensive for host cities to organize the Olympics.

203 countries currently participate in the Olympics. This is a noticeably higher number than the number of countries recognised by the United Nations, which is only 193. The International Olympic Committee allows nations to compete which do not meet the strict requirements for political sovereignty that many other international organizations demand. As a result, many colonies and dependencies are permitted to host their own Olympic teams and athletes even if such competitors hold the same citizenship as another member nation. Examples of this include territories such as Puerto Rico, Bermuda, and Hong Kong, all of which compete as separate nations despite being legally a part of another country. Also, since 1980, Taiwan has competed under the name "Chinese Taipei", and under a flag specially prepared by the IOC. Prior to that year the People's Republic of China refused to participate in the Games because Taiwan had been competing under the name "Republic of China". The Republic of the Marshall Islands was recognised as a nation by the IOC on February 9, 2006, and should compete in the 2008 Summer Olympics in Beijing.[11]

Olympic problems

Boycotts

The 1956 Melbourne Olympics were boycotted by the Netherlands, Spain, and Switzerland, because of the repression of the Hungarian Uprising by the Soviet Union; additionally, Cambodia, Egypt, Iraq, and Lebanon, boycotted the games due to the Suez Crisis.[12]

In 1972 and 1976, a large number of African countries threatened the IOC with a boycott, to force them to ban South Africa, Rhodesia, and New Zealand. The IOC conceded in the first 2 cases, but refused in 1976 because the boycott was prompted by a New Zealand rugby union tour to South Africa, and rugby was not an Olympic sport. The countries withdrew their teams after the games had started; some African athletes had already competed. A lot of sympathy was felt for the athletes forced by their governments to leave the Olympic Village; there was little sympathy outside Africa for the governments' attitude. Twenty-two countries (Guyana was the only non-African nation) boycotted the Montreal Olympics because New Zealand was not banned.[13]

Also in 1976, due to pressure from the People's Republic of China (PRC), Canada told the team from the Republic of China (Taiwan) that it could not compete at the Montreal Summer Olympics under the name "Republic of China" despite a compromise that would have allowed Taiwan to use the ROC flag and anthem. Taiwan refused and as a result did not participate until 1984, when it returned under the name "Chinese Taipei" and used a special flag.[14]
Countries that boycotted the 1976 (yellow), 1980 (blue) and 1984 (red) games
Countries that boycotted the 1976 (yellow), 1980 (blue) and 1984 (red) games

In 1980 and 1984, the Cold War opponents boycotted each other's games. The United States led and 64 other Western nations followed in refusing to compete at the Moscow Olympics in 1980 because of the Soviet invasion of Afghanistan, but 16 other Western nations did compete at the Moscow Olympics. The boycott reduced the number of nations participating to only 80. This is the lowest number of nations to compete since 1956. The Soviet Union and 14 of its Eastern Bloc partners (except Romania) countered by skipping the Los Angeles Olympics in 1984, arguing the safety of their athletes could not be guaranteed there and "chauvinistic sentiments and an anti-Soviet hysteria are being whipped up in the United States".[15]

The 1984 boycotters staged their own Friendship Games in July-August.[16][17]

Doping

One of the main problems facing the Olympics (and international sports in general) is doping, or performance enhancing drugs. In the early 20th century, many Olympic athletes began using drugs to enhance their performance. For example, the winner of the marathon at the 1904 Games, Thomas J. Hicks, was given strychnine and brandy by his coach, even during the race. As these methods became more extreme, gradually the awareness grew that this was no longer a matter of health through sports. In the mid-1960s, sports federations put a ban on doping, and the IOC followed suit in 1967.

The first and so far only Olympic death caused by doping occurred in 1960. At the cycling road race in Rome the Danish Knut Enemark Jensen fell from his bicycle and later died. A coronor's inquiry found that he was under the influence of amphetamines.

The first Olympic athlete to test positive for doping use was Hans-Gunnar Liljenwall, a Swedish pentathlete at the 1968 Summer Olympics, who lost his bronze medal for alcohol use. Seventy-three athletes followed him over the next 38 years, several medal winners among them. The most publicised doping-related disqualification was that of Canadian sprinter Ben Johnson, who won the 100m at the 1988 Seoul Olympics, but tested positive for stanozolol.

Despite the testing, many athletes continued to use doping without getting caught. In 1990, documents were revealed that showed many East German female athletes had been unknowingly administered anabolic steroids and other drugs by their coaches and trainers as a government policy.

In the late 1990s, the IOC took initiative in a more organised battle against doping, leading to the formation of the World Anti-Doping Agency (WADA) in 1999. The recent 2000 Summer Olympics and 2002 Winter Olympics have shown that this battle is not nearly over, as several medalists in weightlifting and cross-country skiing were disqualified due to doping offences.

Most recently, during the 2006 Winter Olympics, only one athlete failed a drug test and had a medal revoked. The only other case involved 12 members with high levels of haemoglobin and their punishment was a five day suspension for health reasons.

The International Olympic Committee introduced blood testing for the first time during these games.

Politics

Main article: Politics in the Olympics

Politics interfered with the Olympics on several occasions, the most well-known of which was the 1936 Summer Olympics in Berlin, where the games were used as propaganda by the German Nazis. At this Olympics, a true Olympic spirit was shown by Luz Long, who helped Jesse Owens (a black athlete) to win the long jump, at the expense of his own silver medal.[18]

The Soviet Union did not participate in the Olympic Games until the 1952 Summer Olympics in Helsinki. Instead, the Soviets organized an international sports event called Spartakiads, from 1928 onward. Many athletes from associations organized by Communists or close to them chose not to participate or were even barred from participating in Olympic Games, and instead participated in Spartakiads.[19]

A political incident on a smaller scale occurred at the 1968 Summer Olympics in Mexico City. Two American track-and-field athletes, Tommie Smith and John Carlos, performed the Black Power salute on the victory stand of the 200-meter track and field race. In response, the IOC's autocratic president Avery Brundage told the USOC to either send the two athletes home, or withdraw the complete track and field team. The USOC opted for the former.[20]

In a political policy move that flouts the spirit of the Olympic movement, the government of the Islamic Republic of Iran specifically orders its athletes not to compete in any olympic heat, semi-final, or final that includes athletes from Israel. At the 2004 Olympics, an Iranian judo wrestler refused to compete in a heat against an Israeli judo wrestler, but did so in a way that 'covered' the possibility of Iran being removed from the games for political intrigue (the athlete deliberately overweighted himself out of his class). This athlete returned home to a heroes welcome.[21]

Violence

Despite what Coubertin had hoped for, the Olympics did not bring total peace to the world. In fact, three Olympiads had to pass without Olympics because of war: due to World War I the 1916 Games were canceled, and the summer and winter games of 1940 and 1944 were canceled because of World War II.

Terrorism has also become a recent threat to the Olympic Games. In 1972, when the Summer Games were held in Munich, West Germany, eleven members of the Israeli Olympic team were taken hostage by Palestinian terrorist group Black September in what is known as the Munich massacre. A bungled liberation attempt led to the deaths of the nine abducted athletes who had not been killed prior to the rescue as well as that of a policeman, with five of the terrorists also being killed.[22]

During the Summer Olympics in 1996 in Atlanta, a bombing at the Centennial Olympic Park killed two and injured 111 others. The bomb was set by Eric Robert Rudolph, an American domestic terrorist, who is currently serving a life sentence at Supermax in Florence, Colorado.[23]

The 2002 Winter Olympics in Salt Lake City were the first Olympic Games since the September 11, 2001 attacks. Olympic Games since then have required an extremely high degree of security due to the fear of possible terrorist activities.[24]

Olympic Movement

A number of organizations are involved in organizing the Olympic Games. Together they form the Olympic Movement. The rules and guidelines by which these organizations operate are outlined in the Olympic Charter.

At the heart of the Olympic Movement is the International Olympic Committee (IOC), currently headed by Jacques Rogge. It can be seen as the government of the Olympics, as it takes care of the daily problems and makes all important decisions, such as choosing the host city of the Games, and the programme of the Olympics.

Three groups of organisations operate on a more specialised level:

* International Federations (IFs), the governing bodies of a sport (e.g. FIFA, the IF for football (soccer), and the FIVB, the international governing body for volleyball.)
* National Olympic Committees (NOCs), which regulate the Olympic Movement within each country (eg. USOC, the NOC of the United States)
* Organising Committees for the Olympic Games (OCOGs), which take care of the organisation of a specific celebration of the Olympics.

At present, 202 NOCs and 35 IFs are part of the Olympic Movement. OCOGs are dissolved after the celebration of each Games, once all subsequent paperwork has been completed.

More broadly speaking, the term Olympic Movement is sometimes also meant to include everybody and everything involved in the Olympics, such as national sport governing bodies, athletes, media, and sponsors of the Olympic Games.

Criticism

Most Olympic Games have been held in European and North American cities; only a few games have been held in other places, which were still limited to eastern Asian cities. All bids by countries in South America and Africa have failed. Many non-westerners believe the games should expand to include locations in poorer regions. Economists point out that the massive infrastructure investments could springboard cities into earning higher GDP after the games.

In the past, the IOC has often been criticised for being a monolithic organisation, with several members remaining a member at old age, or even until their deaths. The leadership of IOC president Juan Antonio Samaranch especially has been strongly criticised. Under his presidency, the Olympic Movement made great progress, but has been seen as autocratic and corrupt. Samaranch's ties with the former fascist government in Spain, and his long term as a president (21 years)—until he was 81 years old—have also been points of critique.

In 1998, it became known that several IOC members had taken bribes from the organising committee for the 2002 Winter Olympics in Salt Lake City, Utah, in exchange for a vote on the city at the election of the host city. The IOC started an investigation, which led to four members resigning and six being expelled. The scandal set off further reforms, changing the way in which host cities are elected to avoid further bribes. Also, more active and former athletes were allowed in the IOC, and the membership terms have been limited.

The same year (1998), four European groups organized the International Network Against Olympic Games and Commercial Sports to oppose their cities' bids for future Olympic Games. Also, an Anti-Olympic Alliance had formed in Sydney to protest the hosting of the 2000 Games. Later, a similar movement in Vancouver and Whistler, British Columbia organized to protest the hosting of the 2010 Winter Games. These movements were particularly concerned about adverse local economic impact and dislocation of people to accommodate the hosting of the Olympics.

A BBC documentary aired in August 2004, entitled Panorama: "Buying the Games", investigated the taking of bribes in the bidding process for the 2012 Summer Olympics. The documentary claimed it is possible to bribe IOC members into voting for a particular candidate city. In particular, Bulgaria's member Ivan Slavkov, and Muttaleb Ahmad from the Olympic Council of Asia, were implicated. They have denied the allegations. Others have alleged that the 2006 Winter Olympics were held in Turin because officials bribed the IOC and so Turin got the games and Sion, Switzerland (which was the favorite) did not.

The Olympic Movement has been accused of being overprotective of its symbolism (in particular, it claims an exclusive and monopolistic copyright over any arrangement of five rings and the term "olympics"), and have taken action against things unrelated to sport, such as the role-playing game Legend of the Five Rings. It was accused of homophobia in 1982 when it successfully sued the Gay Olympics, an event now know as the Gay Games, to bar it from using the term "olympics" in its name.[25]

Olympic symbols
The five Olympic rings were designed in 1913, adopted in 1914 and debuted at the Games at Antwerp, 1920.
The five Olympic rings were designed in 1913, adopted in 1914 and debuted at the Games at Antwerp, 1920.

Main article: Olympic symbols

The Olympic movement uses many symbols, most of them representing Coubertin's ideas and ideals. The best known symbol is probably that of the Olympic Rings. These five intertwined rings represent the unity of five continents (the Americas are considered one continent). They appear in five colors on a white field on the Olympic Flag. These colors, white (for the field), red, blue, green, yellow, and black were chosen such that each nation had at least one of these colors in its national flag. The flag was adopted in 1914, but the first Games at which it was flown were Antwerp, 1920. It is hoisted at each celebration of the Games.

The official Olympic Motto is "Citius, Altius, Fortius", a Latin phrase meaning "Swifter, Higher, Stronger". Coubertin's ideals are probably best illustrated by the Olympic Creed:

"The most important thing in the Olympic Games is not to win but to take part, just as the most important thing in life is not the triumph but the struggle. The essential thing is not to have conquered but to have fought well."

The Olympic Flame is lit in Olympia and brought to the host city by runners carrying the torch in relay. There it plays an important role in the opening ceremonies. Though the torch fire has been around since 1928, the relay was introduced in 1936.

The Olympic mascot, an animal or human figure representing the cultural heritage of the host country, was introduced in 1968. It has played an important part of the games since 1980 with the debut of misha, a Russian bear.

French and English are the two official languages of the Olympic movement.

Olympic ceremonies

Opening
Opening ceremonies climax with the lighting of the Olympic Flame. For lighting the torch, modern games feature elaborate mechanisms such as this cauldron-spiral-cauldron arrangement lit by the 1980 U.S. Olympic ice hockey team at the 2002 Winter Olympics.
Opening ceremonies climax with the lighting of the Olympic Flame. For lighting the torch, modern games feature elaborate mechanisms such as this cauldron-spiral-cauldron arrangement lit by the 1980 U.S. Olympic ice hockey team at the 2002 Winter Olympics.

Apart from the traditional elements, the host nation ordinarily presents artistic displays of dance and theatre representative of that country.[26]

Various traditional elements frame the opening ceremonies of a celebration of the Olympic Games. The ceremonies typically start with the hoisting of the host country's flag and the performing of its national anthem.[27] The traditional part of the ceremonies starts with a "parade of nations" (or of athletes), during which most participating athletes march into the stadium, country by country. One honored athlete, typically a top competitor, from each country carries the flag of his or her nation, leading the entourage of other athletes from that country.[28]

Traditionally (starting at the 1928 Summer Olympics) Greece marches first, because of its historical status as the origin of the Olympics, while the host nation marches last. (Exceptionally, in 2004, when the Games were held in Athens, Greece marched last as host nation rather than first, although the flag of Greece was carried in first.) Between these two nations, all other participating nations march in alphabetical order of the dominant language of the host country,[28] or in French or English alphabetical order if the host country does not write its dominant language in an alphabet which has a set order. In the 1992 Summer Olympics in Barcelona, both Spanish and Catalan were official languages of the games, but due to politics surrounding the use of Catalan, the nations entered in French alphabetical order. The XVIII Olympic Winter Games in Nagano, Japan saw nations entering in English alphabetical order since the Japanese language grouped both China and Chinese Taipei together in the Parade of Nations.

After all nations have entered, the president of the host country's Olympic Organising Committee makes a speech, followed by the IOC president who, at the end of his speech, introduces the organising country's head of state, who in turn formally opens the Olympics, by saying:

«I declare open the Games of ... celebrating the ... Olympiad of the modern era/Olympic Winter Games.»[27]

In some cases, the country's head of state did not open the Olympics. Three examples of this are from the United States. First, in 1932, when Vice-President Charles Curtis opened the Games of the Xth Olympiad in Los Angeles, California, then New York Governor Franklin D. Roosevelt opened the III Olympic Winter Games in Lake Placid, New York instead of President Herbert Hoover, then, in 1960, when Vice-President Richard Nixon opened the VIII Olympic Winter Games in Squaw Valley, California instead of President Dwight Eisenhower, and finally, in 1980, when Vice President Walter Mondale, not President Jimmy Carter, opened the XIII Olympic Winter Games, also in Lake Placid. Despite this, the Games are awarded to a city, not to the country. At the 2000 Sydney Games, Australian Governor-General Sir William Deane opened the Games, as Queen Elizabeth (who as Queen of Australia is the Australian head of state) did not attend.

Next, the Olympic Flag is carried horizontally (since the 1960 Summer Olympics) into the stadium and hoisted as the Olympic Anthem is played. The flag bearers of all countries circle a rostrum, where one athlete (since the 1920 Summer Olympics) and one judge (since the 1972 Summer Olympics) speak the Olympic Oath, declaring they will compete and judge according to the rules.[27] Finally, the Torch is brought into the stadium, passed from athlete to athlete, until it reaches the last carrier of the Torch, often a well-known athlete from the host nation, who lights the fire in the stadium's cauldron.[27] The Olympic Flame has been lit since the 1928 Summer Olympics, but the torch relay did not start until the 1936 Summer Olympics. Beginning at the post-World War I 1920 Summer Olympics, the lighting of the Olympic Flame was for 68 years followed by the release of doves, symbolizing peace.[27] This gesture was discontinued after several doves were burned alive in the Olympic Flame during the opening ceremony of the 1988 Summer Olympics.[29] However, some Opening Ceremonies have continued to include doves in other forms; for example, the 2002 Winter Olympics featured skaters holding kite-like cloth dove puppets.

Opening ceremonies have been held outdoors, usually on the main athletics stadium, but those for the 2010 Winter Olympics will be the first to be held indoors, at the BC Place Stadium.[30]

Closing

Various traditional elements also frame the closing ceremonies of an Olympic Games, which take place after all of the events have concluded. Flag bearers from each participating delegation enter the stadium in single file, but behind them march all of the athletes without any distinction or grouping of nationality.[31] This tradition began at the 1956 Summer Olympics at the suggestion of Melbourne schoolboy John Ian Wing, who thought it would be a way of bringing the athletes of the world together as "one nation".[32] (In 2006, the athletes marched in with their countrymen, then dispersed and mingled as the ceremonies went on).

Three national flags are each hoisted onto flagpoles one at a time while their respective national anthems are played: The flag of Greece on the righthand pole (again honouring the birthplace of the Olympic Games), the flag of the host country on the middle pole, and finally the flag of the host country of the next Summer or Winter Olympic Games, on the lefthand pole.[31] (Exceptionally, in 2004, when the Games were held in Athens, only one flag of Greece was raised.)

In what is known as the "Antwerp Ceremony" (because the tradition started during the 1920 Summer Olympics in Antwerp), the mayor of the city that organized the Games transfers a special Olympic Flag to the president of the IOC, who then passes it on to the mayor of the next city to host the Olympic Games.[31] The receiving mayor then waves the flag eight times. There are three such flags, differing from all other copies in that they have a six-coloured fringe around the flag, and are tied with six coloured ribbons to a flagstaff:

* The Antwerp flag: Was presented to the IOC at the 1920 Summer Olympics by the city of Antwerp, Belgium, and was passed on to the next organising city of the Summer Olympics until the Games of Seoul 1988.
* The Oslo flag: Was presented to the IOC at the 1952 Winter Olympics by the city of Oslo, Norway, and is passed on to the next organising city of the Winter Olympics.
* The Seoul flag: Was presented to the IOC at the 1988 Summer Olympics by the city of Seoul, South Korea, and is passed on to the next organising city of the Summer Olympics, which was Barcelona, Spain, at that time.

After these traditional elements, the next host nation introduces itself with artistic displays of dance and theatre representative of that country. This tradition began with the 1976 Games.

The president of the host country's Olympic Organising Committee makes a speech, followed by the IOC president, who at the end of his speech formally closes the Olympics, by saying:

«I declare the Games of the ... Olympiad/... Olympic Winter Games closed and, in accordance with tradition, I call upon the youth of the world to assemble four years from now in ... to celebrate the Games of the ... Olympiad/... Olympic Winter Games.»

The Olympic Flame is extinguished, and while the Olympic anthem is being played, the Olympic Flag that was hoisted during the opening ceremonies is lowered from the flagpole and horizontally carried out of the stadium.[31]
Olympic sports

Main article: Olympic sports

Currently, the Olympic program consists of 35 different sports, 53 disciplines and more than 400 events. The Summer Olympics includes 28 sports with 38 disciplines and the Winter Olympics includes 7 sports with 15 disciplines.[33] Nine sports were on the original Olympic programme in 1896: athletics, cycling, fencing, gymnastics, weightlifting, shooting, swimming, tennis, and wrestling. If the 1896 rowing events had not been cancelled due to bad weather, they would have been included in this list as well.[34]

At the most recent Winter Olympics, seven sports were conducted, or 15 if each sport such as skiing and skating is counted. Of these, cross country skiing, figure skating, ice hockey, Nordic combined, ski jumping, and speed skating have been featured on the programme at all Winter Olympics. In addition, figure skating and ice hockey also have been contested as part of the Summer Games before the introduction of separate Winter Olympics.

In recent years, the IOC has added several new sports to the programme to attract attention from young spectators. Examples of such sports include snowboarding and beach volleyball. The growth of the Olympics also means that some less popular (modern pentathlon) or expensive (white water canoeing) sports may lose their place on the Olympic programme. The IOC decided to discontinue baseball and softball beginning in 2012.

Rule 48.1 of the Olympic Charter requires that there be a minimum of 15 Olympic sports at each Summer Games. Following its 114th Session (Mexico 2002), the IOC also decided to limit the programme of the Summer Games to a maximum of 28 sports, 301 events, and 10,500 athletes. The Olympic sports are defined as those governed by the International Federations listed in Rule 46 of the Olympic Charter. A two-thirds vote of the IOC is required to amend the Charter to promote a Recognised Federation to Olympic status and therefore make the sports it governs eligible for inclusion on the Olympic programme. Rule 47 of the Charter requires that only Olympic sports may be included in the programme.

The IOC reviews the Olympic programme at the first Session following each Olympiad. A simple majority is required for an Olympic sport to be included in the Olympic programme. Under the current rules, an Olympic sport not selected for inclusion in a particular Games remains an Olympic sport and may be included again later with a simple majority. At the 117th IOC Session, 26 sports were included in the programme for London 2012.

Until 1992, the Olympics also often featured demonstration sports. The objective was for these sports to reach a larger audience; the winners of these events are not official Olympic champions. These sports were sometimes sports popular only in the host nation, but internationally known sports have also been demonstrated. Some demonstration sports eventually were included as full-medal events.

Amateurism and professionalism

Further information: Amateurism

The English public schools of the second half of the 19th century had a major influence on many sports. The schools contributed to the rules and influenced the governing bodies of those sports out of all proportion to their size. They subscribed to the Ancient Greek and Roman belief that sport formed an important part of education, an attitude summed up in the saying: mens sana in corpore sano – a sound mind in a healthy body. In this ethos, taking part has more importance than winning, because society expected gentlemen to become all-rounders and not the best at everything. Class prejudice against "trade" reinforced this attitude. The house of the parents of a typical public schoolboy would have a tradesman's entrance, because tradesmen did not rank as the social equals of gentlemen. Apart from class considerations there was the typically English concept of "fairness," in which practicing or training was considered as tantamount to cheating; it meant that you considered it more important to win than to take part. Those who practiced a sport professionally were considered to have an unfair advantage over those who practiced it merely as a "hobby."

The public schools had a deep involvement in the development of many team sports including all British codes of football as well as cricket and hockey. The ethos of English public schools greatly influenced Pierre de Coubertin. The International Olympic Committee invited a representative of the Headmasters' Conference (the association of headmasters of the English public schools) to attend their early meetings. The Headmasters' Conference chose the Reverend Robert Laffan, the headmaster of Cheltenham College, as their representative to the IOC meetings. He was made a member of the IOC in 1897 and, following the first visit of the IOC to London in 1904, he was central to the founding of the British Olympic Association a year later.[35][36][37]

In Coubertin's vision, athletes should be gentlemen. Initially, only amateurs were considered such; professional athletes were not allowed to compete in the Olympic Games. A short-lived exception was made for professional fencing instructors.[38] This exclusion of professionals has caused several controversies throughout the history of the modern Olympics.

1912 Olympic pentathlon and decathlon champion, Jim Thorpe, was disqualified when it was discovered that he played semi-professional baseball prior to winning his medals. He was restored as champion on compassionate grounds by the IOC in 1983. Swiss and Austrian skiers boycotted the 1936 Winter Olympics in support of their skiing teachers, who were not allowed to compete because they earned money with their sport and were considered professionals.

It gradually became clear to many that the amateurism rules had become outdated, not least because the self-financed amateurs of Western countries often were no match for the state-sponsored "full-time amateurs" of Eastern bloc countries. Nevertheless, the IOC held to the traditional rules regarding amateurism. In the 1970s, amateurism requirements were dropped from the Olympic Charter, leaving decisions on professional participation to the international federation for each sport. This switch was perhaps best exemplified by the American Dream Team, composed of well-paid NBA stars, which won the Olympic gold medal in basketball in 1992. As of 2004, the only sport in which no professionals compete is boxing (though even this requires a loose definition of amateurism, as some boxers receive cash prizes from their NOCs); in men's football (soccer), the number of players over 23 years of age is limited to three per team.

Advertisement regulations are still very strict, at least on the actual playing field, although "Official Olympic Sponsors" are common. Athletes are only allowed to have the names of clothing and equipment manufacturers on their outfits. The sizes of these markings are limited.

Olympic champions and medalists
With 10 Olympic titles including those from Intercalated games, Ray Ewry may be considered one of the most successful Olympic athletes in the history of the modern Olympics.
With 10 Olympic titles including those from Intercalated games, Ray Ewry may be considered one of the most successful Olympic athletes in the history of the modern Olympics.
Larissa Latynina won 18 Olympic medals, including 9 gold ones, the highest IOC recognised gold and overall totals in the modern Olympics.
Larissa Latynina won 18 Olympic medals, including 9 gold ones, the highest IOC recognised gold and overall totals in the modern Olympics.

Main article: Lists of Olympic medalists
See also: List of multiple Olympic gold medalists

The athletes (or teams) who place first, second, or third in each event receive medals. The winners receive "gold medals". (Though they were solid gold until 1912, they are now made of gilded silver.) The runners-up receive silver medals, and the third-place athletes bronze medals. In some events contested by a single-elimination tournament (most notably boxing), third place might not be determined, in which case both semi-final losers receive bronze medals. The practice of awarding medals to the top three competitors was introduced in 1904; at the 1896 Olympics only the first two received a medal, silver and bronze, while various prizes were awarded in 1900. However, the 1904 Olympics also awarded silver trophies for first place, which makes Athens 1906 the first games that awarded the three medals only. In addition, from 1948 onward athletes placing fourth, fifth and sixth have received certificates which became officially known as "victory diplomas;" since 1976 the medal winners have received these also, and in 1984 victory diplomas for seventh- and eighth-place finishers were added, presumably to ensure that all losing quarter-finalists in events using single-elimination formats would receive diplomas, thus obviating the need for consolation (or officially, "classification") matches to determine fifth through eighth places (though interestingly these latter are still contested in many elimination events anyway). Certificates were awarded also at the 1896 Olympics, but there they were awarded in addition to the medals to first and second place. Commemorative medals and diplomas — which differ in design from those referred to above — are also made available to participants finishing lower than third and eighth respectively. At the 2004 Summer Olympics in Athens, the first three were given wreaths as well as their medals.

Because the Olympics are held only once every four years, the public and athletes often consider them as more important and valuable than world championships and other international tournaments, which are often held annually. Many athletes have become celebrities or heroes in their own country, or even world-wide, after becoming Olympic champions.

The diversity of the sports, and the great differences between the Olympic Games in 1896 and today make it difficult to decide which athlete is the most successful Olympic athlete of all time. This is further complicated since the IOC no longer recognises the Intercalated Games which it originally organised. When measuring by the number of titles won at the Modern Olympic Games, the following athletes may be considered the most successful (2 golds from the Intercalated Games are included in Ray Ewry's scores).

Communication

Communication

Communication allows people to exchange thoughts by one of several methods. There are auditory means, such as speaking or singing, and physical means, such as sign language, touch, or eye contact.

As developed below, communication happens at many levels (even for one single action), in many different ways, and for all beings, and some machines. Many or all, fields of study dedicate some attention to communication, so when speaking about communication it is very important to be sure about what kind of communication are we speaking about, mainly: what type of things are communicated, between what agents, and with what kind of results.


Purposes of Communication

Communication is a process by which information is exchanged between or among individuals through a common system of symbols, signs, and behavior. As a process, communication has synonyms such as expressing feelings, conversing, speaking, corresponding, writing, listening and exchanging. It's funny how we know so much about communication, but we rarely give a second thought. We should create a whole day for communication. People communicate to satisfy needs in both their work and non-work lives. People want to be heard, to be appreciated and to be wanted. They also want to accomplish tasks and to achieve goals. Obviously, then, a major purpose of communication is to help people feel good about themselves and about their friends, groups, and organizations. For true communication, there must be a transmitting of thoughts, ideas and feelings from one mind to another. If love may be called the heart of happy family living, then communication could be called its lifeblood.


Communication as Information

Communication can be seen as processes of the transmission of information governed by three levels of semiotic rules: Syntactic, pragmatic and semantic. Therefore, communication is a kind of social interaction where at least two interacting agents share a common set of signs and a common set of semiotic rules. In a simplistic model, information is sent from a sender or encoder to a receiver or decoder. In a slightly more complex form feedback links a sender to a receiver. This requires that a symbolic activity, sometimes via a language. Communication development is the development of processes enabling one to understand what others say(or sign, or write) and speak(or sign, or write), translate sounds and symbols into meaning and learn the syntax of the language. Communication is often formed around the principles of respect, promises and the want for social improvement. Specialised fields focus on various aspects of communication and include the following:

* Non-verbal communication, the act of imparting or interchanging thoughts, opinions or information without the use of words;
* Symbolic communication, the exchange of messages that change a priori expectation of events
* Animal communication, the discipline of animal behavior that focuses on the reception and use of signals

Since the beginning of time, the need to communicate emerges from a set of universal questions: Who am I? Who needs to know? Why do they need to know? How will they find out? How do I want them to respond? Individuals, communities, and organizations express their individuality through their identity. On the continuum from the cave paintings at Lascaux to digital messages transmitted via satellite, humanity continues to create an infinite sensory palette of visual and verbal expression.

* Mass communication
* Development communication
* Communication studies
* Interpersonal Communication
* Organizational communication
* Sociolinguistics
* Conversation analysis
* Cognitive linguistics
* Linguistics
* Pragmatics
* Semiotics
* Discourse analysis
* audiology
* speech therapy
* forensics (debate) and courtroom communication

Communication as a named and unified discipline has a history of contestation that goes back to the Socratic dialogues, in many ways making it the first and most contestatory of all early sciences and philosophies. Seeking to define "communication" as a static word or unified discipline may not be as important as understanding communication as a family of resemblances with a plurality of definitions as Ludwig Wittgenstein had put forth. Some definitions are broad, recognizing that animals can communicate with each other as well as human beings, and some are more narrow, only including human beings within the parameters of human symbolic interaction.

Nonetheless, communication is usually described along three major dimensions:

1. Content
2. Form
3. Destination

With the presence of "communication noise" these three components of communication often become skewed and inaccurate. Between parties, communication content include acts that declare knowledge and experiences, give advice and commands, and ask questions. These acts may take many forms, including gestures (nonverbal communication, sign language and body language), writing, and speech. The form depends on the symbol systems used. Together, communication content and form make messages that are sent towards a destination. The target can be oneself, another person (in interpersonal communication), or another entity (such as a corporation or group).

A particular instance of communication is called a speech act. A speech act typically follows a variation of logical means of delivery. The most common of these, and perhaps the best, is the dialogue. The dialogue is a form of communication where both the parties are involved in sending information. There are many other forms of communication but the reason the dialogue is good is because the dialogue lends itself to clearer communication due to feedback. (Feedback being encoded information, either verbal or nonverbal, sent back to the original sender (now the receiver) and then decoded.)

There are many theories of communication, and a commonly held assumption is that communication must be directed towards another person or entity. This essentially ignores intra personal communication (note intra-, not inter-) via diaries or self-talk.

There are many different areas of communication.A few are: nonverbal communication, verbal communication, and symbolic communication. Nonverbal communication deals with facial expressions and body motions. Much of the “emotional meaning” we take from other people is found in the person’s facial expressions and tone of voice, comparatively little is taken from what the person actually says (More Than Talk). Verbal communication is when we communicate our message verbally to whoever is receiving the message. Symbolic communications are the things that we have given meaning to and that represent a certain idea we have in place, for example, the American flag is a symbol that represent freedom for the Americans themselves, or imperialism and evil for some other countries.


Communication media

The following model of communication has been criticized and revised.

The beginning of human communication through artificial channels, i.e. not vocalization or gestures, goes back to ancient cave paintings, drawn maps, and writing.

Our indebtedness to the Ancient Romans in the field of communication does not end with the Latin root "communicare". They devised what might be described as the first real mail or postal system in order to centralize control of the empire from Rome. This allowed for personal letters and for Rome to gather knowledge about events in its many widespread provinces.

In the last century, a revolution in telecommunications has greatly altered communication by providing new media for long distance communication. The first transatlantic two-way radio broadcast occurred on July 25, 1920 and led to common communication via analogue and digital media:

* Analog telecommunications include traditional telephony, radio, and TV broadcasts.
* Digital telecommunications allow for computer-mediated communication, telegraphy, and computer networks.

Communications media impact more than the reach of messages. They impact content and customs; for example, Thomas Edison had to discover that hello was the least ambiguous greeting by voice over a distance; previous greetings such as hail tended to be garbled in the transmission. Similarly, the terseness of e-mail and chat rooms produced the need for the emoticon.

Modern communication media now allow for intense long-distance exchanges between larger numbers of people (many-to-many communication via e-mail, Internet forums). On the other hand, many traditional broadcast media and mass media favor one-to-many communication (television, cinema, radio, newspaper, magazines).

The adoption of a dominant communication medium is important enough that historians have folded civilization into "ages" according to the medium most widely used. A book titled "Five Epochs of Civilization" by William McGaughey (Thistlerose, 2000) divides history into the following stages: Ideographic writing produced the first civilization; alphabetic writing, the second; printing, the third; electronic recording and broadcasting, the fourth; and computer communication, the fifth. The media effects what people think about themselves and how they precive people as well. What we think about self image and what others should look like comes from the media.

While it could be argued that these "Epochs" are just a historian's construction, digital and computer communication shows concrete evidence of changing the way humans organize. The latest trend in communication, termed smartmobbing, involves ad-hoc organization through mobile devices, allowing for effective many-to-many communication and social networking.


Language

A language is a system of signals, such as voice sounds, intonations or pitch, gestures or written symbols which communicate thoughts or feelings. If a language is about communicating with signals, voice, sounds, gestures, or written symbols, can animal communications be considered as a language? Animals do not have a written form of a language, but use a language to communicate with each other. In that sense, an animal communication can be considered as a separated language.

Human spoken and written languages can be described as a system of symbols (sometimes known as lexemes) and the grammars (rules) by which the symbols are manipulated. The word "language" is also used to refer to common properties of languages.

Language learning is normal in human childhood. Most human languages use patterns of sound or gesture for symbols which enable communication with others around them. There are thousands of human languages, and these seem to share certain properties, even though many shared properties have exceptions. Tell the world, learn a language.

There is no defined line between a language and a dialect, but Max Weinreich is credited as saying that a language is a dialect with an army and a navy.

Humans and computer programs have also constructed other languages, including constructed languages such as Esperanto, Ido, Interlingua, Klingon, programming languages, and various mathematical formalisms. These languages are not necessarily restricted to the properties shared by human languages.


Mass media

Mass media is a term used to denote, as a class, that section of the media specifically conceived and designed to reach a very large audience (typically at least as large as the whole population of a nation state). It was coined in the 1920s with the advent of nationwide radio networks and of mass-circulation newspapers and magazines. The mass-media audience has been viewed by some commentators as forming a mass society with special characteristics, notably atomization or lack of social connections, which render it especially susceptible to the influence of modern mass-media techniques such as advertising and propaganda.

Metacommunication

The process of communicating about communication, for example, to discuss a past conversation and to determine the meanings behind certain words, phrases, etc. Metacommunication can be used as a tool for sense making, or for better understanding events, places, people, relationships, etc...

Animal communication

Animal communication is any behaviour on the part of one animal that has an effect on the current or future behaviour of another animal. of animal communication, called zoosemiotics (distinguishable from anthroposemiotics, the study of human communication) has played an important part in the development of ethology, sociobiology, and the study of animal cognition.This is quite evident as humans are able to communicate with animals especially dolphins and other animals used in circuses however these animals have to learn a special means of communication.

Animal communication, and indeed the understanding of the animal world in general, is a rapidly growing field, and even in the 21st century so far, many prior understandings related to diverse fields such as personal symbolic name use, animal emotions, animal culture and learning, and even sexual conduct, long thought to be well understood, have been revolutionized.

Plant communication

Plant communication is observed (a) within the plant organism, i.e. within plant cells and between plant cells, (b) between plants of the same or related species and (c) between plants and non-plant organisms, especially in the rootzone. Plant roots communicate in parallel with rhizobia bacteria, with fungi and with insects in the soil. This parallel sign-mediated interactions which are governed by syntactic, pragmatic and semantic rules are possible because of the decentralized nervous system of plants. As recent research shows 99% of intraorganismic plant communication processes are neuronal-like. Plants communicate also via volatiles in the case of herbivory attack behavior to warn neighboring plants. In parallel they produce other volatiles which attract parasites which attack these herbivores. In stress situations plants can overwrite the genetic code they inherited from their parents and revert to that of their grand- or great-grandparents.

Search engine results page

A search engine results page, or SERP, is the listing of web pages returned by a search engine in response to a keyword query. The results normally include a list of web pages with titles, a link to the page, and a short description showing where the keywords have matched content within the page. A SERP may refer to a single page of links returned, or to the set of all links returned for a search query.

Query caching
Some search engines cache SERPs for frequent searches and display the cached SERP instead of a live SERP to increase the performance of the search engine[citation needed]. The search engine updates the SERPs periodically to account for new pages, and possibly to modify the rankings of pages in the SERP.

SERP refreshing can take several days or weeks[citation needed] which can occasionally cause results to be inaccurate or out of date, and new sites and pages to be completely absent.

MSN Search engine optimization

Search engine optimization (SEO), a subset of search engine marketing, is the process of improving the volume and quality of traffic to a web site from search engines via "natural" ("organic" or "algorithmic") search results. SEO can target contextual search, local search, and industry-specific vertical search engines.

A typical Search Engine Results Page (SERP)SEO is marketing by understanding how search algorithms work and what human visitors might search for, to help match those visitors with sites offering what they are interested in finding. Some SEO efforts may involve optimizing a site's coding, presentation, and structure, without making very noticeable changes to human visitors, such as incorporating a clear hierarchical structure to a site, and avoiding or fixing problems that might keep search engine indexing programs from fully spidering a site. Other, more noticeable efforts, involve including unique content on pages that can be easily indexed and extracted from those pages by search engines while also appealing to human visitors.

The term SEO can also refer to "search engine optimizers," a term adopted by an industry of consultants who carry out optimization projects on behalf of clients, and by employees of site owners who may perform SEO services in-house. Search engine optimizers often offer SEO as a stand-alone service or as a part of a larger marketing campaign. Because effective SEO can require making changes to the source code of a site, it is often very helpful when incorporated into the initial development and design of a site, leading to the use of the term "Search Engine Friendly" to describe designs, menus, content management systems and shopping carts that can be optimized easily and effectively.

msn optimizer

In mathematics, optimization is the discipline which is concerned with finding the maxima and minima of functions, possibly subject to constraints. An example of an optimization problem is the following: maximize the profit of a manufacturing operation while ensuring that none of the resources exceed certain limits and also satisfying as much of the demand faced as possible. Optimization has many practical applications in logistics and design problems.

In computer science, optimization is the process of improving a system in certain ways to reduce the effective runtime, the bandwidth or memory requirements. Despite its name, optimization does not necessarily mean finding the optimum solution to a problem. Often this is not possible, and heuristic algorithms must be used instead.

Also in computer science, search engine optimization (SEO) is a set of methodologies aimed at improving the ranking of a website in search engine listings. The term also refers to an industry of consultants that carry out optimization projects on behalf of client sites