AcharyaChanakya/simple-wikipedia huggingface dataset:
In the evening, it is the other way around and that phenomenon is called dusk. The sun has disappeared, and darkness is setting in. Light fades away.
The following have been defined:
For all these definitions, the horizon is at the sea which is flat.
The Great Depression was the great economic crisis that started after the U.S. stock market crash in 1929. The prices on the Wall Street stock market fell a lot from October 24 to October 29, 1929. Many people lost their jobs. By 1932, 25–30% of people lost their jobs. They became homeless and poor. This ended the wealth of the Roaring Twenties. Many people think that the Great Depression started on Tuesday, October 29, but economists think Black Tuesday was just one of the causes.
From 1929-1932, the depression worsened. Many suspect that increased taxes on American citizens and the increased tariffs (taxes on countries which trade with the United States) worsened it. Economist Milton Friedman said that the Great Depression was worsened because the Federal Reserve printed out less money than usual.
When the Great Depression started, Herbert Hoover was the president of the United States, and as a result, he was blamed for it. People voted for a new president in 1932. His name was Franklin D. Roosevelt. Roosevelt got the government to pass many new laws and programs to help people who were hurt by the Great Depression. These programs were called the New Deal.
One of these programs was the Civilian Conservation Corps, or CCC. The CCC put many young men to work in the outdoors. The men were paid thirty dollars a month, of which twenty five dollars was sent home to support their families, to work, and they got free food and shelter. Another program was called Social Security. Social Security gave old people a small income so they had money for things they needed. The Great Depression was really bad, but with everyone's help, it would get better. Between 1939 and 1944, more people had jobs again because of World War II, and the Great Depression came to an end.
The Great Depression followed a decade of rapid economic growth and urbanization. After the Wall Street Crash of 1929, business declined as it had after previous stock market crashes. However, people still had hope. John D. Rockefeller said that "These are days when many are discouraged. In the 93 years of my life, depressions have come and gone. Prosperity (wealth) has always returned (come back) and will again." But soon the bad effects of the depression grew worse and worse. More people lost jobs, money, and homes. There were reports that in Germany and the United States, there were great hunger, disease, and even starvation. Nations used protectionism more than in recent decades. This diminished international trade.
Farmers were usually safe from the severe effects of previous depressions because they could at least feed themselves. During the Great Depression, the Great Plains were also hit hard with a drought and dust storms. This was called the Dust Bowl.
Years of overgrazing combined with drought caused the grass to disappear. With topsoil exposed, high winds picked up the loose dirt and carried it over long distances. The dust storms destroyed crops, leaving farmers without food or something to sell.
Small farmers were hit especially hard. Even before the dust storms hit, the invention of the tractor drastically cut the need for manpower on farms. These small farmers were usually already in debt, borrowing money for seed and paying it back when their crops came in. When the dust storms damaged the crops, not only could the small farmer not feed himself and his family, he could not pay back his debt. Banks would then foreclose on the mortgage and the farmer's family would be homeless, unemployed and poor.
1291
Delhi (; "Dillī"; "Dillī"; "Dēhlī"), officially the National Capital Territory of Delhi (NCT), is a territory in India. It includes the country's capital New Delhi. It covers an area of . It is bigger than the Faroe Islands but smaller than Guadeloupe. Delhi is a part of the National Capital Region, which has 12.5 million residents. The governance of Delhi is like that of a state in India. It has its own legislature, high court and a council of executive ministers.
Delhi is on the banks of the Yamuna River. Historians have evidence that people have been living in this region since at least the 6th century BC. People also believe that the legendary city of Indraprastha was here. This city has many remains and monuments of historic importance.
The India Gate is a war memorial in Delhi. Following the Bangladesh Liberation war in 1972, a structure consisting of a black marble plinth with a reversed rifle, capped by a war helmet and bounded by four eternal flames, was built beneath the archway. This structure, called Amar Jawan Jyoti (Flame of the Immortal Soldier), has since 1971 served as India's tomb of the unknown soldier
European Central Bank
The European Central Bank (ECB) is the central bank for the euro and administers monetary policy of the eurozone, which consists of 19 EU member states and is one of the largest currency areas in the world. It is one of the world's most important central banks and is one of the seven institutions of the European Union (EU) listed in the Treaty on European Union (TEU). The capital stock of the bank is owned by the central banks of all 28 EU member states. The Treaty of Amsterdam established the bank in 1998, and it is headquartered in Frankfurt, Germany. the President of the ECB is Mario Draghi, former governor of the Bank of Italy, former member of the World Bank, and former managing director of the Goldman Sachs international division (2002–2005). The bank primarily occupied the Eurotower prior to, and during, the construction of the new headquarters.
The primary objective of the ECB, mandated in Article 2 of the Statute of the ECB, is to maintain price stability within the Eurozone. Its basic tasks, set out in Article 3 of the Statute, are to set and implement the monetary policy for the Eurozone, to conduct foreign exchange operations, to take care of the foreign reserves of the European System of Central Banks and operation of the financial market infrastructure under the TARGET2 payments system and the technical platform (currently being developed) for settlement of securities in Europe (TARGET2 Securities). The ECB has, under Article 16 of its Statute, the exclusive right to authorise the issuance of euro banknotes. Member states can issue euro coins, but the amount must be authorised by the ECB beforehand.
The ECB is governed by European law directly, but its set-up resembles that of a corporation in the sense that the ECB has shareholders and stock capital. Its capital is €11 billion held by the national central banks of the member states as shareholders. The initial capital allocation key was determined in 1998 on the basis of the states' population and GDP, but the capital key has been adjusted. Shares in the ECB are not transferable and cannot be used as collateral.
The European Central Bank is the main bank of the European Union. The European Central Bank is in Frankfurt am Main. The main goal of the European Central Bank is to maintain price stability, in other words make sure inflation is below 2%. This is done by e.g. controlling the interest rates. It is also the only bank allowed to issue euro banknotes (€), used by 16 of the 28 member states of the European Union (EU).
Presidents:
Friendship means familiar and liking of each other's mind.
People who are friends talk to each other and spend time together. They trust one another and also help each other when they are in trouble or are hurt. Friends are people that can be looked up to and trusted. Usually friends have similar interests. A friend is one who admires a person's skill and helps or encourages them to make the right choices and do not get into any trouble at all.
The strength of the bond of friendship between two people can vary. If the bond is very strong, they are called best friends. This can usually be achieved by possessing the elements of friendship, by being kind, generous, loyal, honest and by having fun. With these qualities you can truly enjoy the bliss of friendship.
There are expectations, demands and complaints in friendship too. If friends don't match with your expectations, it does not mean you will break the friendship. It is all about understanding, realizing and helping whenever possible.
Friendship is both good and necessary. Man cannot live all alone. He is a social being. He needs someone to share his joys and sorrows. Generally, it is only people of similar age, character and background, mentality, etc., who can understand him and his problems. Friends are needed for support and for sharing.
There are many different types of friendships. Most people find friends at a very young age however it is harder for others. Many movies are based off of a group of friends. An example of a friendship would be that of Sierra, Olivia, Emma, Langli, and Mallory's in the movie Eight grade Whittier.
The word "Friendship" is also the official motto of Texas.
Friendship facts by RoastedBook.com
Clitoris
The clitoris is a female genital organ. It includes erectile tissue, glands, muscles and ligaments, nerves, and blood vessels. In an embryo there is a small raised point that grows into a clitoris in girls or a penis in boys. Inside, the penis there is the urethra, but there is no urethra in the clitoris. In women, the urethra is hidden behind the clitoris and in front of the vagina. Penises with male urethras are used daily for urination, and can be used for sex: semen passes out of the body through the male urethra.
Although the parts are placed differently, the clitoris is a match to the male penis. The clitoris causes females sexual pleasure, arousal and orgasm. Rubbing or applying other consistent pressure to it is usually needed to help the female have an orgasm.
During sexual arousal, erectile tissue fills with blood. This causes the clitoris to grow. It grows until orgasm happens. Also during arousal, touching the clitoris and other sensitive areas of the female genitals makes a woman's vagina change shape and release a lubricant. The lubricant and change of shape makes it easier for a man to enter a woman and for sex to occur. Most of the clitoris is hidden inside the body. Only a small part of it is seen outside the body. Adding the outside and inside parts, the clitoris is about the same size as the penis. The clitoris and penis grow from the same tissue in the womb; they bear many similar parts.
The parts of the clitoris that can be seen from the outside are located from the "clitoral junction" (the point where the outer lips meet at the base of the pubic mound) to the "fork" (where the lower edges of the inner lips meet below the vaginal opening). The outside parts include:
The parts of the clitoris inside the body include erectile tissue, glands, muscles, blood vessels, and nerves. In both the clitoris and the penis, there are two types of erectile tissue. These are "corpus cavernosum" (cavern-like body) and vestibular bulbs. These tissues fill with blood during sexual arousal. This causes an erection. The clitoral shaft is connected to the glans. It is just underneath the surface of the skin. The shaft is a round spongy erectile tissue. It is very sensitive like the glans. It feels like a hard ridge. The shaft is about long. It moves toward the pubic mound for a short distance, then bends sharply and divides. This forms two thin legs. These legs are also made of spongy tissue. The legs spread out like the wishbone of a chicken.
The Berlin Wall (German: "Berliner Mauer") was a wall that separated the city of Berlin in Germany from 1961 to 1989. It separated the eastern half from the western half. Many people thought it was a symbol of the Cold War. The Berlin Wall was taken down on November 9, 1989. The Berlin Wall was about long. It was built to prevent people from escaping from the eastern half of Berlin.
After World War II ended, Germany was divided into four zones, one zone for each of the main Allied countries: France, the United Kingdom, the United States and the Soviet Union. Its capital Berlin was also divided into four zones, so that it was an enclave, like an island inside the Soviet zone. On May 8, 1949, the French, United Kingdom and US zones were made into West Germany ("Federal Republic of Germany", "Bundesrepublik Deutschland", "BRD") and West Berlin. The Soviet zones were made into East Germany and East Berlin. East Germany (German Democratic Republic, "Deutsche Demokratische Republik", "DDR") was founded on October 7, 1949. Europe, Germany and Berlin were divided by an iron curtain.
After Germany split into West and East Germany on May 8, 1949, 2.6 million East Germans left to go to "West Germany". In Berlin alone, 3.6 million people fled to the west. To stop this, on August 13, 1961, the Communist government of East Germany built a wall separating East and West Berlin.
The wall was built to keep the country's people in. But the Soviets and East German government said it was to keep capitalism out. They said that West Germany refused to recognize East Germany as an independent country because they wanted to take over North-East Germany just like Hitler took over Poland.
People still tried to escape even though the Berlin Wall was there. They used many methods to get around the guards and barbed wire on the Berlin Wall.
In the late 1980s, Mikhail Gorbachev said that the Soviet Union would not use the Red Army to stop the people of Eastern and Middle Europe from changing their government. After he said that, several countries began to change the way they governed their people. Hungary opened its border and people from East Germany began moving to the west through Hungary. In October 1989 mass demonstrations against the government in East Germany began. The long-time leader, Erich Honecker, resigned and was replaced by Egon Krenz a few days later. Honecker had predicted in January 1989 that the wall would stand for a "hundred more years" if the conditions which had caused its construction did not change. This did not turn out to be true.
In November, 1989, the Central Committee of East Germany decided to make it easier for East Germans to pass through the wall. A mistake by the press officer meant the border was opened several hours before it should have been. Millions of East German citizens celebrated the opening of the wall. Many collected souvenirs with chisels and some television stations filmed people hitting the wall with sledge hammers.
This image of people in West Berlin hitting the wall is often said to be East Berliners breaking out. This is not true. The eastern side of the wall had no graffiti on it. All pictures of people chipping away at the wall show people hitting graffiti covered walls. Less than one year after the Berlin Wall was broken down, Germany again became one country.
In the 28 years of its existence, between 125 and 206 people were killed when trying to cross the Berlin Wall. At least 800 more people were killed outside Berlin, trying to cross from East Germany to the west.
The East Germans did not record all of the deaths, so the real number of how many people died may never be known.
Those people who were caught alive in an attempt to flee, had to go to jail for at least five years. The first victim of the Wall was Ida Siekmann. She was fatally injured after jumping out of the window of her apartment. She fell onto the pavement on the west side. The first victim of the Wall to be shot at was Günter Litfin. He was 24 years old and was shot by police, near the railway station of Berlin Friedrichstrasse, when he tried to get into the West. This was on 24 August, 1961, only eleven days after the border had been closed.
Peter Fechter bled to death in the "death strip", on 17 August, 1962. This led to a public outcry. American troops watched him, but could not help him. The East-German border policemen, who had wounded him, did not help him either.
In 1966, two children, aged ten and thirteen years, were killed in the border strip. This is unusual because the East German border police had orders to not shoot on pregnant women, children or mentally ill people.
On 6 February, 1989, border guards shot and killed Chris Gueffroy as he tried to cross the wall. He was the last person to be killed by border guards. On 8 March, 1989, Winfried Freudenberg died after falling from a gas balloon. He was the last person to die trying to cross the Berlin Wall and escape into West Berlin.
The Berlin wall eventually started to fall once people rioted. Many jumped on top of the wall, and even crowded against it. This caused the wall to collapse in some areas, and more people could get through to the refugee camps that were set up on the other side. "Tear down this wall!" was a speech made by United States President Ronald Reagan to Soviet Union leader Mikhail Gorbachev to destroy the wall. The speech was made at the Brandenburg Gate near the Berlin Wall on June 12, 1987. It was made to honor the 750th anniversary of Berlin. His speech and its fallout might have aided in the wall's demolition.
By late 1989 the GDR was suffering from many problems such as a struggling economy, and large-scale protests. The Hungarian regime had collapsed and was dismantling its border fences with Austria by August 1989. Since the Warsaw Pact allowed citizens to travel within the Soviet bloc, many East German tourists fled to the west via Hungary. When the Hungarian government refused the GDR's demand to stop defectors, East Germany banned all travel to Hungary; prompting demonstrations and protest. This began the GDR's isolation within the bloc.
Erich Honecker, leader of the GDR since 1971, was forced to resign on October 18, 1989. He was replaced by Egon Krenz after a unanimous vote by the politburo. Under Krenz's regime, East Germans could still escape to Hungary via Czechoslovakia.
The number of defectors grew and caused tensions between East Germany and Czechoslovakia. The Krenz regime decided to allow people to leave directly to the west through border checkpoints in East Berlin. This prompted many East Germans, who learned about it broadcast from West German media, to go to the border crossings and demand to be let through immediately.
Border guards at each checkpoint told the people to go back home as they had no orders that the wall would open that night. As time passed, the number of people arriving at the checkpoint was increasing and the guards were becoming alarmed. They began taking the more aggressive people aside and stamped their passports with a special stamp that allowed them access to West Berlin however, the people were not aware that they were effectively revoking their East German citizenship and were shocked to be refused entry back into the GDR. The Chief Guard of the checkpoint frantically telephoned his superiors hoping to get answers as to why so many people thought that the wall was to open. By 22:45, it was clear that the outnumbered and overwhelmed border guards would not use their weapons to suppress the crowds. The Chief Guard surrendered and ordered the gates to West Berlin to be opened. The crowds of East Berliners were met with crowds of West Berliners in a happy scene as the Berlin wall had just fallen.
Many people even climbed up onto the wall by the Brandenburg Gate in protest and began to chisel away at the wall. The GDR authorities responded to this initially by blasting the people with water cannons; this proved to be ineffective. The East German army later climbed up onto the wall to prevent others from standing on the wall. The government began demolishing the wall the next day. The fall of the wall destroyed the SED, the ruling party of the GDR, and caused many of its officials to resign. The German Democratic Republic would cease to exist less than a year later; reuniting with the Federal Republic of Germany on October 3, 1990.
The wall was changed and added to several times. It was not really a wall, but a collection of walls and fences and other devices. This is what the "border fence" was made of, starting from the east, going west
The whole was done in an a zone of between 30 and 500 m wide. The official ("civil" border) began before the first fence. Entering the installation required a special permit. The real border was about one or two metres in front of the concrete wall, so that the whole of the wall complex was inside East Germany (only the East Berlin part of the wall was inside East Berlin).
The border between East Germany and West Germany was also heavily defended with fences and mines. East Germans needed a special permit to live close to the border.
After the Reunification of Germany in October 3, 1990, the Berlin Wall was demolished and taken away. A few sections of the wall remain; some of the sections became a museum.
The East Berlin special police who guarded the wall had the order to shoot if this was necessary to stop people fleeing. East German leaders such as Egon Krenz were arrested after German reunification because guards were ordered to shoot to kill.
However, after the Wall was built, many people were no longer able to leave East Berlin using normal border posts. The only way they could do so was to race through the Wall or try to dig a tunnel underneath.
After the unification of Germany, border guards who had shot people were convicted by West German Courts. The judges said, that some of the laws of the border police (about shooting) were against human rights. They therefore should have refused to shoot.
The same was of course applied to those people who had shot border police on their flight.
Border guards who did shoot, and stop someone from fleeing could get a reward of up to 500 Marks. Some of those guards were sentenced after the unification.
The other choice was to not shoot, or to miss badly. Such guards risked losing their well-paid jobs.
Another strip of land was given to West Berlin. This strip was only the width of a road which joined West Berlin with a tiny exclave.
Łódź
Łódź (pronounced "wuj") is the third-largest city in Poland, with 776,000 inhabitants. It is in the Łódź Voivodeship in the centre of the country. In Polish the name also means "boat". The mayor of Łódź is Hanna Zdanowska.
The first documents mentioning the city date from 1332. Łódź was awarded city rights (according to the Magdeburg law) in 1432. The Congress of Vienna decided in 1815 that the city should be part of Russia. Only in 1918 did the city fall back to Poland.
The city is about 120 km south-west of Warsaw. In and around the city, there are some textile and electronics industries. Because of prolonged economic difficulties, there has been a decline in the population of the city. The city has a university and a film academy. Łódź has a humid continental climate ("Dfb" in the Koeppen climate classification).
There are two major football teams in Łódź: the first is called ŁKS Łódź and the second is Widzew Łódź.
Kraków (Polish: "Kraków"; (pronounced: ); variant English spelling Cracow; in full Royal Capital City of Krakow, Polish: Królewskie Stołeczne Miasto Kraków) is one of the oldest and largest cities in Poland. In 2014 in Kraków lived 759,800 people. It is on the Vistula river. Krakow is the capital of Lesser Poland Voivodeship ("województwo małopolskie"); before that it was the capital of Kraków Voivodship (since 14th century).
During the mid-early 19th century, Krakow became an independent city-state, under the name of "The Free, Independent and Strictly Neutral City of Krakow". However, it was annexed by Austria-Hungary in 1846.
Pope John Paul II was raised in Krakow and was its archbishop from 1964 until he was elected as Pope in 1978. When it was later announced that the city will host World Youth Day in 2016, it will be a tribute to the late Pope who became a saint in 2014.
The current mayor of Krakow is Jacek Majchrowski.
Kraków is twinned, or maintains close relations with:
Portland is the largest city in the U.S. state of Oregon. It is the county seat of Multnomah County. About 538,544 people live in the city of Portland, and about 1,927,881 people live in the city's metropolitan area. It is found in the north part of the state, where the Willamette River meets the Columbia River. Portland has the second most people of any city in the Northwest United States, after the city of Seattle.
Portland has many nicknames. One of these is "The City of Roses," because roses grow well there. Some other nicknames of Portland are "Stumptown" (from the fact that Portland was built over a forest), and "Puddletown" (from the fact that it often rains in Portland).
Many things are from Portland. Some of these things are Powell's Books, Beverly Cleary (and some of her most popular fictional characters, Henry Huggins and Ramona Quimby, which also have statues in the city's "Beverly Cleary Sculpture Garden for Children"), and the Portland Trail Blazers basketball team.
Frame of reference
In physics, a frame of reference, or reference frame, is a perspective that one uses to determine if an object is moving. A frame of reference consists of an object or environment that is considered to be stationary. Typically the observer is at rest in the reference frame; in this context, the term is "observational frame of reference."
For example, when you see a ball roll down a street, you can tell the ball is moving because the frame of reference is the streets, whatever may be on the side of the roads, or the Earth. All of these are frames of reference.
All measurements of motion will be compared to a frame of reference. Therefore, the most commonly used frame of reference is Earth itself, even though it moves. Stars are used as a frame of reference when discussing the motions of the Earth.
When we walk from one side of a ship to the other, our frame of reference is the ship; whether the ship is moving is not relevant to that frame of reference.
An inertial frame of reference is a frame that is either not moving or moving at a constant velocity. In other words, an inertial frame of reference has no net force acting upon it, and therefore Newton's laws of motion are observed.
Inertial reference frames are often used in general relativity and special relativity to describe relative motion of observers or objects and the effects they will endure.
Inertial frames of reference are useful in everyday life as well. For example, consider a situation where two cars are traveling along a road. See Figure 1. If they are separated by a distance of 100 meters, the car in the back is moving at 10 meters per second and the car in front is moving at 5 meters per second, both relative to the ground.
There are three obvious inertial reference frames that can be used to determine when the cars will be even with each other: one where the back car is not moving but the front car is moving backwards at 5 m/s, one where the front car is stationary and the back car is moving forward at 5 m/s, or one where the ground is not moving and the cars are moving at their given velocities. These three perspectives all describe the situation accurately and are physically identical.
Broadway is a -long main street in New York City. It is different from other streets in that it runs diagonally across the street grid of Manhattan, diagonally crossing newer streets. The street also goes through the Bronx. It continues north as U.S. Route 9 to Albany, the capital of New York State.
Times Square, where Broadway meets 7th Avenue and 42nd Street, is a center of entertainment and is famous for its many theaters and stage plays.
One of the New York City Subway lines, the BMT Broadway Line, runs under the street in Manhattan, south of Times Square. The IRT Broadway - Seventh Avenue Line runs under Broadway, north of Times Square.
Schrödinger equation
The Schrödinger equation is a differential equation (a type of equation that involves an unknown function rather than an unknown number) that forms the basis of quantum mechanics, one of the most accurate theories of how subatomic particles behave. It is a mathematical equation that was thought of by Erwin Schrödinger in 1925. It defines a wave function of a particle or system (group of particles) which has a certain value at every point in space for every given time. These values have no physical meaning (in fact, they are mathematically complex), yet the wave function contains all information that can be known about a particle or system. This information can be found by mathematically manipulating the wave function to return real values relating to physical properties such as position, momentum, energy, etc. The wave function can be thought of as a picture of how this particle or system acts with time and describes it as fully as possible.
The wave function can be in a number of different states at once, and so a particle may have many different positions, energies, velocities or other physical properties at the same time (i.e. "be in two places at once"). However, when one of these properties is measured it has only one specific value (which cannot be definitely predicted), and the wave function is therefore in just one specific state. This is called wave function collapse and seems to be caused by the act of observation or measurement. The exact cause and interpretation of wave function collapse is still widely debated in the scientific community.
For one particle that only moves in one direction in space, the Schrödinger equation looks like:
where formula_2 is the square root of -1, formula_3 is the reduced Planck's constant, formula_4 is time, formula_5 is a position, formula_6 is the wave function, and formula_7 is the potential energy, an as yet not chosen function of position. The left hand side is equivalent to the Hamiltonian energy operator acting on formula_8.
Assuming that the wave function, formula_9, is separable, i.e. assuming the function of two variables can be written as the product of two different functions of a single variable:
then, using standard mathematical techniques of Partial differential equations, it can be shown that the wave equation can be rewritten as two distinct differential equations
where the first equation is solely dependent on time formula_13, and the second equation depends only on position formula_14, and where formula_15 is just a number. The first equation can be solved immediately to give
where formula_17 is Euler's number. Solutions of the second equation depend on the potential energy function, formula_7, and so cannot be solved until this function is given. It can be shown using quantum mechanics that the number formula_15 is actually the energy of the system, so these separable wave functions describe systems of constant energy. Since energy is constant in many important physical systems (for example: an electron in an atom), the second equation of the set of separated differential equations presented above is often used. This equation is known as the Time independent Schrödinger Equation, as it does not involve formula_4.
There are many philosophical interpretations of the wave function, and a few of the leading ideas will be considered here. The main idea, called the Born probability interpretation (named after physicist Max Born) comes from the simple idea that the wave function is square integrable; i.e.
This rather simple formula has great physical implications. Born hypothesized that the above integral determines that the particle "exists somewhere in space". But how can we find it? We use the integral
formula_22 to formula_23. In other words, all that can be known in advance about a particle in general are probabilities, averages, and other statistical quantities associated with its physical quantities (position, momentum, etc.). Basically, this is the Born interpretation.
An extension of the above ideas can be made. Since the Born interpretation says that the actual position particle cannot be known, we can derive the following. If formula_24 are solutions to the wave equation, then the superposition of those solutions, i.e.
is also a solution. This implies, then, that the particle exists in every possible position. When an observer comes and measures the position of the particle, then the superposition is reduced to a single possible wave function. (i.e., formula_26 → formula_27, where formula_27 is any of the possible wave function states.) This idea that a particle's position cannot exactly be known, and that a particle exists in multiple positions simultaneously gives rise to the Uncertainty principle. The mathematical formulation of this principle can be given by
Where formula_30 is the uncertainty in position, and formula_31 is the uncertainty in momentum. This principle can be mathematically derived from the Fourier transforms between momentum and position as defined by quantum mechanics, but we will not derive it in this article.
There are various other interpretations, such as the many-worlds interpretation, and quantum determinism.
Nutmeg ("Myristica fragrans") is a species of evergreen tree in the genus "Myristica". It is found in tropical Southeast Asia and Australia.
Run (island)
Pulau Run is an island in Indonesia. It is one of the smallest Islands of the Banda Islands. It is about 3 km long and less than 1 km wide.
It used to be of great importance, because of the value of the spices nutmeg and "mace". Both spices are from the same tree. The trees were only grown on the Banda Islands. During the history of the spice trade sailors of the British East India Company of the second expedition of James Lancaster, John Davis and John Middleton who stayed in Bantam on Java first reached the Island in 1603. They made good contacts with the people who lived there.
Two wars were fought over the extremely costly spices.
The Treaty of Westminster ended the First Anglo-Dutch War of 1652–1654. According to the treaty, Run should have been returned to England. The first attempt in 1660 failed due to formal constraints by the Dutch; after the second in 1665 the English traders were expelled in the same year and the Dutch destroyed the nutmeg trees.
After the second Anglo-Dutch War of 1665–1667 England and the United Provinces of the Netherlands agreed in the Treaty of Breda to the status quo: The English kept the island of Manhattan which a fleet sent by the Duke of York (the future Charles II), had occupied illegally in 1664 and renamed from New Amsterdam to New York. Run was officially given to the Dutch.
The Dutch monopoly on nutmeg and mace was destroyed by the transfer of nutmeg trees to Ceylon, Singapore and other British colonies in 1817 after the capture of the main Island Bandalontor in 1810 by Captain Cole. This led to the decline of the Dutch supremacy in the spice trade, but there are still nutmeg trees growing on Run today.
Shinty
Shinty a traditional game now mainly played in the Scottish Highlands. It involves 2 teams of twelve players using a stick (known as a "caman" from Scottish Gaelic) to put a ball in the opposing team's net.
It was once played over all Scotland but is now played mostly in the Scottish Highlands and Highland communities in the big Scottish cities. It is also played in universities and in America by enthusiasts.
The sport's rules and regulations are decided by the Camanachd Association.
It has a common ancestor with the Irish game of hurling and hurlers and shinty players sometimes hold internationals.
54 is a year in the 1st century.
1264
Year 1680 was a leap year that started on a Monday when using the Gregorian calendar.
814 was .
The word Manx could mean many things related to the Isle of Man:
A hierarchy (in ; this comes from '-hieros, sacred, and '-arkho, rule) is a way of ranking and organizing things or people. Beneath the top of the hierarchy, each part of it is below some other part. This turns out to be like a pyramid. It is a system to decide who can make decisions, and who is forced to comply with those decisions.
An example with people would be the structure of a company. There is the top manager, and there are a few levels of middle and lower management. At the bottom are the common workers. Another example would be an army that might have a general, followed by colonels, corporals, and sergeants, then privates.
In democracy this is done by educating people in the issues and then voting - in an election to choose leaders, or a referendum to actually choose one option from several. Competing power networks each form a political party and each offers only one leader or one option to the public, to simplify the issues to make decisions possible. After the decision, they typically do not fight it to the point of civil war, but wait for the next election.
In dictatorship this is done by asking one powerful person to make the decision and then agreeing to force everyone to follow it. Any who will not are exiled, imprisoned, or killed, even if the decision is not very important, since the refusal to follow is taken as a challenge to the power structure itself. There is only one power network and all others are forced to become part of it, or fight it. Civil war is much more common in a dictatorship than in a democracy.
In these examples, people who are higher up have more authority and power than people below them.
Sultan is a name for Islamic rulers. There is no specific word for a sultan's wife.
The word "sultan" was from Arabic language. It means "strength", "authority", or "rulership". Later, it came to be used as the title of certain Muslim rulers who claimed full sovereignty. They did not have to take orders from any higher monarch, without claiming the overall caliphate.
The dynasty and lands ruled by the Sultan is called a sultanate. During the 20th century several Sultans changed their title to "Malik" which means "king".
States and union territories of India
The Republic of India is divided into twenty-eight States,and eight union territories including the National Capital Territory.
Finnish () is a Uralic language. It is one of the two official languages of Finland. It is also an official minority language in Sweden. Finnish is one of the four national languages of Europe that is not an Indo-European language. The other three are Estonian and Hungarian, which are also Uralic languages, and Basque.
The Finnish grammar and most Finnish words are very different from those in other European languages, because Finnish is not an Indo-European language. The two other national languages that are Uralic languages as Finnish are Estonian and Hungarian. Estonians and Finns usually may understand each other, but their languages are very different. Even though Finnish and Hungarian are related languages, they do not look or sound similar. The Finnish and Hungarian languages separated a long time ago, and each language developed its own vocabulary. People who can speak Finnish cannot understand Hungarian without extra study, and Hungarians cannot understand Finnish. However, there are some basic words that are very similar, for example: 'hand' (Finnish 'käsi' vs. Hungarian 'kéz') 'to go' (Finnish 'mennä' vs. Hungarian 'menni'), 'fish' (Finnish 'kala' vs. Hungarian 'hal').
Finnish is a synthetic and an agglutinative language. This means that words in Finnish have a stem called "body", and other parts inside them which make up the meaning. Finnish is similar in this respect to the Japanese language, Turkish language, and Latin language. In Finnish, there are 17 cases/word types (sanatyypit). You can think of a "case" as an ending added to a word that helps describe its purpose in the sentence. Verbs have 5 tempora (present tense, past tense, perfect, pluperfect and future tense). In addition, verbs have two participle (active and passive) cases. Gerunds, which are nouns made from verbs (for example: reading - to read) also exist in Finnish (lukeminen - lukea), are abundant in Finnish.
Finnish is a complex, self-morphing language. It has been ranked as a highly difficult language for native speakers of English by the U.S. Department of State. The difficulty is due not only to the grammatical structure of the language, but also pronunciation and intonation as compared to English.
Finnish is pronounced the way it is spelled. The pronunciation of some letters is similar to English. However:
English speakers often exhale when saying letters like "k", "p", and "t". They don't do this in Finnish, and to "swallow the sound", as the old saying goes, takes a lot of practice.
The proper pronunciation for the Finnish diphthongs (öy, yö, äy, eu, etc.) is difficult.
Sleep is a state of resting, which happens in animals, including humans. During sleep, most of the muscles that animals can otherwise control are not active, re-gaining the energy for the next time they wake up. Animals during sleep are usually in an unconscious, relaxed state. Like most animals, healthy sleep in humans takes place at night. Asleep describes the condition where animals are in the process of sleeping. During this time, they will not react as quickly (if at all) as they would if they were awake. They can, however, wake up from sleep more easily than from hibernation or coma. All mammals, birds, many reptiles, amphibians, and fish, have a sleep cycle. In humans, other mammals, and most other animals that were studied, regular sleep is essential for survival.
Sleep is extremely important to human health and well-being. Humans and animals need sleep in order for their bodies to be prepared for the next day. Everyday activities, one’s appearance, and how one expresses oneself all rely on this necessity. If one is tired (from not getting enough sleep), one will not be able to function properly in common activities. Being sleep-deprived leads to struggling to remember information, altering one’s mood, health, and a number of other effects. Sleep deprivation (not allowing a person enough sleep) can even be used as torture. Also, the immune system releases compounds known as cytokines which are used to help fight inflammation and infection. If a person does not receive enough sleep, they will not have enough cytokines to protect them from getting sick. The body may not have time to complete memory recollection, muscle repair, and release hormones that regulate growth and appetite.
During the day time, the Sun is out and most people are awake. They work, go to school, or complete daily errands and activities. Many people sleep for a short time in the early afternoon for a quick rest or because they are not able to sleep during the day. This is called a nap. A successful nap should run between 15-30 minutes, and longer naps taking 30-60 minutes will result in feeling dazed and less attentive.
In some countries, most notably where the weather is warm, there is a tradition to take a nap right after noon, or early in the afternoon. This tradition is called "siesta", and is most common in Spain and Latin America. Some stores and services close while their owners and/or employees take their "siesta".
The word "sleep" comes from the old Old Germanic verbs for sleep. In Old and Middle High German it was called "SLAF". The original meaning of the word was "to slap", which was related to the word for "flabby" (not hard or firm).
Many words related to "sleep" have very different meanings, though. For example, "sleep" may be used to mean death, so that "putting an animal to sleep" means to kill the animal without pain. "Sleep with someone" can also have a sexual meaning.
Generally, the reason for sleep is that the brain needs it. The details are not fully understood, but it is important to get enough sleep for the body and the brain to be healthy and work properly. Usually animals (and people) sleep at periodic intervals, such as once a day. Certain animals send out signals to the others that they will soon go to sleep. Yawning is such a signal.
Both humans and many animals sleep about once a day. Some animals, such as cats, sleep many times a day for short periods.
When people sleep they often have dreams. Probably some animals do, too.
Not only people sleep, but all mammals and birds, and most fish, reptiles and other animals also do.
There are four stages during sleep:
While humans sleep, REM and NREM are sleep patterns that help with long term memory, remembering information, procedural memory, and creative thinking.
In mammals and birds, sleep can be divided into two categories. In one of them, the eyes move rapidly. It is called REM-sleep (rapid eye movement). Most dreams take place in this phase. also the body is becoming relaxed, and the eyes move while sleeping. This phase helps prepare one for the next day.REM-sleep occurs normally at intervals throughout the night, and the periods of REM-sleep increase in length in the second half of the night. It is often encountered 90 minutes after falling asleep and continues to occur every 90 minutes. REM-sleep was first discovered in 195253.
REM sleep is found in mammals and songbirds, but is "poorly established" in reptiles and fish. A survey suggests:
The other category, where this movement of the eyes does not happen, is called NREM-sleep (Non-REM sleep). Usually, dreams do not occur during this time. There are three or four stages of NREM-sleep. Stage I is just barely sleeping, or dozing. Stage II is also light sleep. Normally, in adult humans, about half of the time spent asleep is spent in light sleep. Stages III and IV are called deep sleep. Deep sleep is necessary for growth and healing. It can be quite difficult to awaken someone who is in stage III or stage IV sleep. Sometimes stages III and IV are combined and called stage III.
Adult humans normally sleep in cycles of 90 to 110 minutes each. The night's sleep can be 4 or 5 of these cycles. Each cycle includes, in this order: stage I, stage II, stage III (IV), and REM.
People who regularly get less than 8 hours of sleep a night tend to complain more and feel very fatigued throughout the day. Getting the appropriate amount of sleep is extremely important as it could affect one’s body and increase the chances of serious health problems. For each age, there are different amounts of sleep that are recommended:
- Toddlers (4 to 12 months): 12 to 16 hours (w/ naps)
- Toddlers (1-2 years): 11 to 14 hours (w/ naps)
- Preschoolers (3-5 years): 10 to 13 hours (w/ naps)
- Grade Schoolers (6 to 12 years): 9 to 12 hours
- Teenagers(13-18 years): 8 to 10 hours
- Adults (including old age): 7 to 9 hours
The timing of sleep and the amount of it are both important. Both are different for different people. Some adults sleep best from 22:00 to 05:00 or 06:00 or 07:00. Some sleep best from midnight to seven or eight. These variations are normal.
How much sleep is enough also depends on age. Children need more sleep than adults. Newborn babies sleep about 18 hours per day. Small babies sleep many times a day; human babies do not develop circadian rhythms before they are 3 – 4 months old. At the age of 1 year, they sleep for about 14 hours.
A nine-year-old should sleep about 9–10 hours per day and teenagers, too, also need that much sleep. Adults who sleep less than about 8 hours a day perform worse than those who sleep that long.
Poor habits could affect one’s sleep schedule in many ways without taking notice. A few habits that are very common and ruin sleep are:
A good night’s sleep is extremely important for one’s quality of life. People may have trouble going to sleep, staying asleep or getting enough sleep. This usually means that they are too sleepy in the daytime.
There are many things that influence sleep. Also some substances, called stimulants – coffee is an example – can cause poor sleep. When people have just eaten something, the body is busy digesting what they have eaten. This can cause poor sleep, too. Worrying and stress can cause poor sleep.
There are many diseases that cause poor sleep. Fever can lead to bad dreams. Poor sleep can be a side effect of some medications.
Sleep disorders directly influence how a person sleeps. Examples of sleep disorders are narcolepsy, sleep apnea and circadian rhythm sleep disorders.
The four most common sleep disorders are:
Sleep specialists - doctors specialized in sleeping problems - often suggest better sleep hygiene to people with sleeping problems. Sleep hygiene means things people can try, such as: