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A deadline is a time by which some task must be completed.
Very often, it means a time limit that is set in place by an authority - for example, a teacher tells students that they must turn in their homework in by a certain time. This is so the teacher is able to report fairly to his or her principal that every student had the same chance to do the work.
Deadlines may also be set by a time horizon that comes from something that is not a human authority, but part of nature. For example, by sunset one must do those tasks requiring daylight. However, a human must watch the sun and decide what light is strong enough to still be daylight, so time limits will still be involved even if one observes a horizon and sets a deadline oneself.
A way to remember this is that a time horizon is like the physical horizon where sunset happens and a time limit is a thing people set up to deal with this. A deadline is a thing powerful people set up to ensure less powerful people comply with their way of doing things.
Dutton's Speedwords
Dutton Speedwords is a made-up language written by Reginald John Garfield Dutton. The idea of Dutton Speedwords is to make frequent words short, and very frequent words very short. Dutton Speedwords can be used as a second language for international communications. Dutton Speedwords is also a shorthand writing system – this means you can use it to write quickly.
The method was made up by Reginald John Garfield Dutton (1886-1970) in 1922. It was first published in 1935. It was called "International Symbolic Script". A year later, it was called "Speedwords". It was changed in 1946 and 1951.
It has two uses; to be a language and to be used for writing quickly. Dutton hoped that this would mean more people would learn it because they could use it for two reasons.
The books that Dutton wrote about Speedwords are not printed anymore. But Speedwords is now being used by more people because they find it is good for working online. For example, it makes it faster to type an email.
Another way of writing quickly is Pitman's shorthand. This uses special symbols instead of letters. Speedwords uses Roman letters. This makes it easier to learn. It also means it can be typed using a normal keyboard. Each word means only one thing. This means you do not need to use different forms of the same word.
The words used in Speedwords are the same as the words used in many other languages. The words are like short versions of the writer's own language.
Devil
In some religions, the devil is a bad spirit or supernatural being that tries to create problems for people and distance them from God. Some people also use the words "the Devil" or "Satan" for the most powerful devil. The word "devil" comes from the Greek word "diabolos" which means "someone who tells lies to hurt you". ("Diabolos" is translated to the English word "slanderer.") The New Testament uses "diabolos" as a title for Satan, and so "The Devil" became another name for Satan in English.
In the Old Testament, there is the serpent and the shaitan, who may be two different characters. "Shaitan" in Hebrew means "adversary", an enemy or opponent. Shaitan is also the word used for the devil in the Koran, who often appears as an animal and tries to get people to do the wrong thing.
In Christianity the Devil was originally an angel in heaven called Lucifer. But he refused to love the humans as much as his father, God, as he was instructed, and so he revolted against Heaven. After a hard fight he was defeated and thrown out of heaven. Some other angels who helped him were also thrown out.
After the Devil was thrown out of heaven, he started doing bad things on the earth. He wants people to worship him instead of God. Sometimes he tries to trick people by giving them false promises.
The other angels who were thrown out of heaven became evil spirits called demons. They obey the Devil and help him do evil things.
The Book of Revelation says that God will punish the Devil and his demons by throwing them into a Lake of Fire that burns in Hell. This will happen in the future.
Artists draw pictures of the Devil that show him as ugly and evil. But nobody knows what he may look like. Usually he is a spirit that nobody can see, but he can make himself look like a real person in order to trick people. Many modern depictions of the devil portray him as a red human-like being with horns and a pointed tail, carrying a red pitchfork or trident.
Not all religions believe in the devil. For example, some forms of Buddhism do not believe in the devil. In Wicca, the concept of the Devil and demons is also rejected, simply because, in Wiccan tradition, the creative energy is neither positive nor negative. According to Wiccans: "We are the ones who use this energy for good or evil. Therefore, the consequence of this action is our entire responsibility, not of an evil supernatural being." The corniferous god "Cernunnos" of Wicca was confused with the Christian Devil, for having horns (in antiquity, given the horns were phallic, they were associated with virility (fertility)), and were soon symbols of ancient European religions. He was already worshipped by pagan religions before Christianity arrived in Europe and the British Isles. Many satanists believe in the devil or Satan only as a metaphor, not an actual being or person. In the Bahá'í Faith, the devil as a malevolent, supernatural entity is not believed to exist. These terms do, however, appear in the Bahá'í writings, where they are instead used as metaphors for the lower nature of man.
Diarrhea
Diarrhea (DIE-uh-REE-uh), also spelled diarrhoea, happens when the body makes more watery feces than normal. Diarrhea can occur in humans as well as most other mammals.
Diarrhea is not a disease. But it may be a symptom of a disease. The most common causes of diarrhea are:
In developing nations, diarrheal diseases are the second most common cause of death in children under age 5. Every year in the world, diarrhea kills around 760,000 children under age 5.
In developing countries, diarrhea is also one of the most common causes of malnutrition in children under age 5.
When children die from diarrhea, the cause is often dehydration (losing too much water from the body). Because diarrhea is watery, it takes away a lot of the water. It also takes away electrolytes—important salts that the body needs to survive. Dehydration is extra dangerous for small children because they have less water in their bodies to begin with. This means they cannot lose as much water as adults before they start to have serious health problems.
In developing countries, diarrhea is usually caused by an infection in the intestines. These infections can be caused by bacteria, viruses, or parasites. These infections spread easily in some developing countries because of the following reasons:
Child deaths from diarrhea can be prevented in different ways.
When a child is sick with diarrhea, the best way to keep them from dying is to rehydrate them (give them the water and electrolytes (salts) they are losing by having diarrhea). If the child can go to a clinic or hospital, this can be done by giving water and salts intravenously (through a needle placed into a vein).
If the child cannot go to a clinic or hospital, oral rehydration solution can be used. ("Oral" means "given by mouth"; a "solution" is a mixture.) Oral rehydration solution is a mixture of the most important things the body loses when it is dehydrated. These things are clean water, salt, and sugar. Some oral rehydration solutions have extra electrolytes, like potassium, in them also.
Some oral rehydration solutions come in packets and just need to be mixed with clean water. Oral rehydration solution can also be made at home. If the water in the area is not safe, it can be boiled to make it safe. (Boiling the water will kill any bacteria, viruses, or parasites in the water.) Salt and sugar are then mixed into the water. Drinking this mixture, after the water cools, will re-hydrate the child, if he drinks enough. Adding a banana or orange juice can add potassium to the mixture.
Breast milk will also re-hydrate a child with diarrhea.
There are some ways to prevent diarrhea, or the spread of diseases that cause diarrhea. However, some of these ways are expensive and difficult to do. These include:
Dimension
Dimensions are the way we see, measure and experience our world, by using up and down, right to left, back to front, hot and cold, how heavy and how long, as well as more advanced concepts from mathematics and physics. One way to define a dimension is to look at the degrees of freedom, or the way an object can move in a specific space. There are different concepts or ways where the term dimension is used, and there are also different definitions. There is no definition that can satisfy all concepts.
In a vector space formula_1 (with vectors being "arrows" with directions), the dimension of formula_1, also written as formula_3, is equal to the cardinality (or number of vectors) of a basis of formula_1 (a set which indicates how many unique directions formula_1 actually has). It is also equal to the number of the largest group of straight line directions of that space. "Normal" objects in everyday life are specified by three dimensions, which are usually called length, width and depth. Mathematicians call this concept Euclidean space.
Dimensions can be used to measure position too. The distance to a position from a starting place can be measured in the length, width and height directions. These distances are a measure of the position.
In some occasions, a fourth (4D) dimension, time, is used to show the position of an event in time and space.
In modern science, people use other dimensions. Dimensions like temperature and weight can be used to show the position of something in less simple spaces. Scientist study those dimension with dimensional analysis.
Mathematicians also use dimensions. In mathematics, dimensions are more general. Dimensions in mathematics might not measure things in the world. The rules for doing arithmetic with dimensions in mathematics might be different than usual arithmetic rules.
Vectors are used to show distances and directions. Vectors are often used in engineering and science, and sometimes in mathematics.
A vector is a list of numbers. There is one number for each dimension. There are arithmetic rules for vectors.
For example, if Jane wants to know the position of Sally, Sally can give Jane a vector to show the position. If Jane and Sally are in the world, there are three dimensions. Therefore, Sally gives Jane a list of three numbers to show her position. The three numbers in the vector Sally gives Jane might be:
Distance
Distance is how far one thing is from another thing. It is also a measure of the space between two things. It can be measured along any path. Thus, someone who goes around in a circle has traveled a distance, even though his position has not changed.
In geometry, the distance between two points "A" and "B" is sometimes written as formula_1. Pythagorean theorem is often used in the calculation of distance. Distance is a scalar, and thus is different from displacement. Displacement is a vector that measures distance with a straight line (and in only one path). Displacement is the shortest way to travel the distance.
Depth
In math, the distance between the nearest end and farthest end of an object is its depth.
For example, Jane measures a box. When she measures the distance between the end of the box closest to her and the end of the box farthest away, Jane measures the box's depth.
"See"
For liquids, the distance between the top or surface of the liquid and the bottom of the liquid is the liquid's depth.
For example, water is a liquid. If you fill a container with water, the distance between the top of the water and the bottom of the container is the water's depth. If the depth is big we say the water is deep.
Dictionary
A dictionary is a type of book which explains the meanings of words or, more precisely, lexemes. The words are arranged in alphabetical order so that they can be found quickly. The word "dictionary" comes from the Latin "dictio" ("saying").
There are several types of dictionaries: dictionaries which explain words and how they are used, dictionaries which translate words from one language to another, dictionaries of biography which tell about famous people, technical dictionaries which explain the meanings of technical words or words connected to a particular subject (sometimes called a thesaurus). Some of these come close to being an encyclopedia, but an encyclopedia gives a lot of extra information about things (knowledge) and does not explain the use of the language. An encyclopedic dictionary gives less information about the topic than a real encyclopedia does, but more than a simple dictionary.
Dictionaries which explain what words mean will give a clear "definition" of the word (e.g. hippopotamus : a hoofed mammal with thick skin, large mouth and short legs that lives in rivers and lakes of Africa.)
A big dictionary will also give more information about the word. It will explain how it is pronounced. Usually the International Phonetic Alphabet is used for this. It will explain how the word is used. This is not a problem for a word like "hippopotamus", but a word like "put" has so many different meanings that a large dictionary may have a whole page or more to explain how it can be used. It will also explain the origin of the word (e.g. Greek "hippos" horse and "potamus" river).
A dictionary may also give the form of the word in different tenses, plural form etc.
There are also dictionaries which translate words into foreign languages. Often one volume (one book) will translate both ways; for example, half the book might be translating from English to Dutch and the other half from Dutch to English.
When using a dictionary to find out how to say something in another language one has to be careful to choose the right word. A word like "right" has two basic meanings in English: 1) "correct", and 2) the opposite of "left". Other languages have different words for these different meanings, but they have homonyms of their own. A word like "put" has many meanings. A good dictionary will have a large list of these meanings to help people find the word they want. In many languages, for example, the word “put” will be different according to whether something is being put onto something (e.g. a table) or into something (e.g. a cupboard).
Dictionaries need to be updated frequently because of the way language changes. New words are often brought into a language (e.g. lots of computer terms) or words change their meanings (e.g. "gay" or "cool"). In this sense, the most famous English Dictionary is the Oxford English Dictionary (or OED). Words are always being added to the OED. They are never taken out even if they are obsolete (not used any more). The OED can be accessed online (with a subscription).
Definition
A definition is an exact word or phrase of the meaning, nature, or limits of something. A definition usually answers the question "what". "Defining" means giving a definition. Other words with this meaning are "description" and "explanation". It describes what a word means and explains to the person when and where it can be used.
In mathematics, a definition is an exact way of saying what something is. It might not be the easiest way to say what it is, but it is used because it is exact. It can be used in a mathematical proof about the thing.
Denmark
Denmark (), officially named the Kingdom of Denmark, is a Nordic country in Northern Europe. It is the furthest south of the Scandinavian countries, to the south of Norway and south-west of Sweden (which it is connected to by a bridge). It has a south border with Germany. It borders both the North Sea to the west and the Baltic Sea to the east. Denmark is a developed country with a large welfare state; In 2006 and 2007, surveys ranked Denmark as "the happiest place in the world," based on standards of health, welfare, and education.
The capital city of Denmark is Copenhagen, on the island of Sealand. Denmark is a constitutional monarchy (meaning the head of state is a monarch who has few established powers) with a queen, Margrethe II. Denmark is a parliamentary state, meaning the people appoint a parliament to make decisions for them, and it has a democratic government headed by an elected Prime Minister, who currently is Mette Frederiksen since 2019.
In geography, "Denmark" is the land in northern Europe, where the Danes live. In the political sense, the "Kingdom of Denmark" also includes the Faroe Islands in the Atlantic Ocean, and Greenland in North America. All three parts of the country have different languages and culture.
Denmark was first united in the 10th century, during the Viking period, by the king Harald Bluetooth (), who first converted Denmark to Christianity. The Vikings are well known for invading countries. In the 11th century, the Danish Vikings controlled England (the Danelaw) for a while. In 1397 Denmark, Sweden and Norway became a single country with one queen (this country was called the "Kalmar Union") Sweden became a separate country again in 1523. Denmark and Norway (called "Denmark-Norway)" stayed united, until 1814. Denmark-Norway controlled many islands in the Atlantic Ocean, including the Faroe Islands, Iceland and Greenland. Iceland became independent from Denmark in 1944.
Denmark became a constitutional monarchy in June 5, 1849 when it adopted a constitution which took away powers from the King and gave rights to ordinary Danish people. June 5 is now a holiday in Denmark, called "Constitution Day".
Over the years Denmark lost many of the lands that it controlled in battle. Denmark's biggest war defeat was the "Second Schleswig War" (in 1864) when the duchies of Schleswig and Holstein was conquered by the Kingdom Prussia (now a part of Germany). This was a big loss for Denmark and, consequently, it began a policy of neutrality after the loss, meaning it would no longer take part in any wars or support other countries. Denmark did not take part in the First World War.
On April 9, 1940, Denmark was invaded by Nazi Germany and the Nazis stayed in Denmark throughout World War II. During the war, in 1943, Danes helped over 8,000 Jews to escape from Denmark into Sweden after the Nazis tried to arrest them.
After the liberation of Denmark, one part of the country was not. That was the island of Bornholm. The German Commandant "von Kamptz" who was stationed there, refused to surrender to the Soviets as the German were fleeing to Bornholm and further to Sweden. The Soviets then bombed the two biggest towns Rønne and Nexø. After the Germans were captured on May 9, 1945, the Soviet Army occupied the island until April 6, 1946.
After World War Two, Denmark became a member of NATO and the European Union. Greenland and the Faroe Islands are now part of the "Kingdom of Denmark" and have their own governments and limited power.
Denmark has three branches of power; the judiciary (the courts), the executive (the Prime Minister and the cabinet) and the legislature (the Danish parliament). The current Prime Minister of Denmark is Mette Frederiksen, who was elected in June 2019.
Denmark is a Kingdom which means it has a monarch (a king or queen). The current monarch is Queen Margrethe II. Margrethe II does not have a lot of power (she does not make any important decisions) and has a symbolic role. Denmark became a constitutional monarchy in 1849.
Elections to the parliament are held every four years, and the winner of the election is the party or coalition which gets the most votes and seats in the parliament. After the elections are done, several parties who are in agreement will group together to form a coalition government, and the leader of the largest party becomes the prime minister.
Here is a short summary of the biggest political parties in Denmark, from left to right on the political axis:
Denmark, like the other Nordic countries. is well known for being a large welfare state. The government provides many services to the public such as free health care, free education (school and college) and free housing for the poor. Danes pay high taxes to fund welfare.
Denmark is the smallest of the Scandinavian countries. The neighbours are Germany (to the south), Sweden (to the east), Norway (to the north) and the United Kingdom (to the west). The country is surrounded by the sea except for Jutland ("Jylland"), the largest part of Denmark. It is connected to Germany by land. To the south-east there is the Baltic Sea, to the west the North Sea, to the north the Skagerrak and to the north-east the Kattegat.
The western part of Denmark is the peninsula of Jutland (, pronounced "yoo´-land"), bordering Germany. This is the only part of Denmark that is not an island. The rest of Denmark includes 76 islands people live on, and many tiny islands. The largest islands are Zealand ("Sjælland"), and Funen ("Fyn"). To the east is the island of Bornholm in the Baltic Sea, the only place in Denmark where the bedrock can be seen.
The country is quite flat. The highest hill or mountain is Møllehøj, which is 170.86 metres (560.56 ft) tall. There are many small hills, lakes, creeks, forests and farmland. Denmark's shore line covers 7,314 km (4,545 mi). Nobody in Denmark lives more than 60 km from the coast. The longest river in Denmark is the Gudenå.
The weather in Denmark is quite windy and rainy. In the winter, it does not get very cold; in most years, there are only a few weeks of snow. Every ten years or so, the sea around the islands freezes over, but in most winters, it does not. The climate and topography are not good for winter sports.
Most summers are not very hot. People always dress to be ready for rain or wind. There are also very sunny times, but nobody can know ahead of time when these will be. The best time of the year for outdoor activities is the months of May and June until midsummer.
Denmark is divided into five regions (Danish: "regioner" or "region" for one). The regions replaced the former counties ("amter") in January 2007. The regions are in charge of hospitals and health care.
The regions are then subdivided into municipalities (). There are currently 98 municipalities, but before January 2007 there were 275. The number of municipalities was decreased when it was decided that, to become more efficient, each should have a population of at least 20,000 .
The biggest part (90.5%) of Denmark's population of just under 5.4 million is of Danish descent, according to 2009 statistics. Of the rest 8.9% who are immigrants or descendent from recent immigrants, many come from South Asia or the Middle East. There are also small groups of Inuit from Greenland and Faroese.
The Danes speak the national language, Danish, which is very similar to the other Scandinavian languages. Swedish and Norwegian are so close to Danish that most Danes understand them.
As well as Danish, most Danes speak a foreign language too, such as English, which is popular as an international language, or German. In the southern part of Jutland, a German minority speaks German. On the Faroe Islands, Faroese is spoken, and people living in Greenland speak Inuit.
Religion does not play a large part in the life of most Danes and church attendance is very low. However, even though many Danes are atheist, 80.4% are members of the Protestant "Church of Denmark" (, The National Church) which is the official "state church" of Denmark. The National Church is Lutheran, which means it separated from the Roman Catholic Church in the 16th Century. Other important faiths include Judaism, Islam (the number of Muslims is increasing), other Protestant groups and Catholicism.
Because of the many islands, Denmark has many bridges. The main parts of the country, and most of the bigger islands, are connected by roads and railroads. One of the world's longest bridges connects the eastern and the western parts of the country, and there is a large bridge to Sweden also. There is still no bridge across the Baltic Sea to Germany, but it will most likely be built in a few years. The bridge to Sweden was expensive, took a long time to build, and required much planning by engineers.
There are still many islands with no bridges to the mainland. People have to go by boat or airplane to reach these islands. Many islands will never be reached by bridges, because they are too small or too far away. If the island has too few people, bridges are often not built because it is expensive to build.
Cycling is very popular in Denmark because the ground is so flat. Copenhagen is a city that is very bicycle friendly, with bicycle lanes extending over 12,000 km.
The people of Denmark have always depended on the sea. In earlier days, people could not travel anywhere unless they went by boat. Many Danes were fishermen or merchants. Even today, many Danes spend much time near or at the sea.
Farming has always been one of the main occupations. Because of the climate and the soil, Denmark is a good place for agriculture. Export of food to the neighbouring countries is one of the most important sources of income for the country. Danish hams and cookies are exported throughout the world.
Perhaps the most famous Dane is actually Hamlet, the title character of William Shakespeare's famous play, which was set in the real castle of Kronborg in Helsingør, north of Copenhagen. The play was based on an old Danish myth of the Viking Prince Amled of Jutland, and his quest for revenge against his father's killer. Another widely known Dane is Hans Christian Andersen, an author mostly famous for such fairy tales as "The Little Mermaid", and "The Ugly Duckling". Also Karen Blixen, Tycho Brahe and the philosopher Søren Kierkegaard are well-known worldwide. There are many famous Danish scientists, including Niels Bohr, the famous physicist who developed the first working model for the atom, and Ole Rømer, who discovered the speed of light. Hans Kirk, although less well-known outside of Denmark, is the author of the best-selling Danish novel of all time, "The Fishermen".
Danes enjoy many different types of music, including ballets, jazz music, pop and rock. Denmark's most famous classical composer is Carl Nielsen. Famous Danish bands include Aqua, a pop band, and The Raveonettes, an indie rock band. The most famous Danish rock star is Lars Ulrich of the band Metallica.
The cuisine of Denmark is like the other Nordic countries (Finland, Norway, Iceland, and Sweden), as well as that of northern Germany, consists mainly pork meat and fish. Traditional Danish food includes "frikadeller" (fried meatballs, often served with potatoes and various sorts of gravy). Fish is also widely eaten, especially on the west coast of Jutland.
Christmas () is the main feast of the year. Christmas is traditionally celebrated on the eve, December 24, and this is when the main Christmas meal is eaten and presents are unwrapped.
In midwinter, a fast is celebrated. Children are dressed up, and go from house to house begging for money. This practice has in the recent years been taken over by Halloween, and most people give candy not money. A barrel filled with candy is smashed with clubs. The person who makes the candy fall out is appointed queen of cats and the person who hits the last stick is appointed king of cats.