AcharyaChanakya/simple-wikipedia huggingface dataset:
Antimony has four allotropes. The common allotrope of antimony is a blue-white metalloid. It looks black when powdered. It is brittle, soft, and shiny. Yellow and black antimony are unstable nonmetals. Yellow antimony is only found at very cold temperatures. It is made by oxidation of stibine. It turns into black antimony when light is shined on it or when it is warmer. Black antimony is normally made by heating metallic antimony until it boils and then cooling the vapors very quickly. It can ignite spontaneously (without any ignition source like a spark or a flame). It also corrodes easily. There is another explosive form of antimony that is made by electrolysis of antimony trichloride. This antimony explodes when changing into the metallic form. There is no chemical reaction; the atoms in the antimony crystal are rearranging themselves. When antimony is talked about it normally means the blue-white metalloid form, since it is most common.
Antimony is found as two stable (not radioactive) isotopes naturally. Sb- 123 and Sb-121
Antimony is a rather unreactive element. It does not dissolve in acids easily. It can dissolve in oxidizing acids like nitric or sulfuric acid. It does not corrode easily in air, although the black allotrope can corrode. Antimony burns in air to make antimony trioxide. In excess air, it burns to antimony tetroxide.
Antimony forms chemical compounds in three oxidation states: -3, +3, and +5. -3 compounds are called antimonides. They are made by reacting antimony with other metals. They react with acids to make the toxic and unstable gas stibine. +3 compounds are the most common. They are weak oxidizing agents. They are somewhat covalent, having low melting points. Antimony trichloride is a colorless and soft solid that has a strong odor. Antimony trioxide is a white solid that dissolves a little in water. The other antimony(III) halides all react with water except for antimony trifluoride. +5 compounds are strong oxidizing agents. Antimony pentafluoride is highly reactive, as well as antimony pentoxide.
-3 compounds are reducing agents. The antimonides have properties between alloys and salts.
+3 compounds are weak oxidizing agents. They are covalent. Most of them are colorless or light yellow solids. They are the most common antimony compounds.
Antimony tetroxide has antimony in both its +3 and +5 oxidation state.
+5 compounds are strong oxidizing agents. They are rare.
Antimony sulfide was known for a long time. Some things plated with antimony and made out of antimony were found in Egypt and Chaldea. The first time antimony was mentioned in Europe was in the 1540. The first native antimony was found in Sweden in 1783. Antimony sulfide and antimony were confused sometimes in antiquity. There is a question over what "stibium", the original name of antimony, meant.
Antimony is not common. It is found about as often as thallium. It is quite easy to get, though and is in many minerals. Antimony is sometimes found as an element, but normally it is found as stibnite, an antimony sulfide mineral. Stibnite is the main ore of antimony. China is the biggest maker of antimony; it makes 84% of all antimony. Other countries that make antimony are South Africa, Bolivia, and Kyrgyzstan. Antimony is not used in the human body.
Antimony is made from stibnite by heating it with air. This makes antimony trioxide. Since it gets so hot, the antimony trioxide is evaporated. Other metal oxides in the stibnite ore do not evaporate. The antimony trioxide gas is condensed in a container. The antimony trioxide is then heated with carbon to make carbon dioxide and antimony. Another way to make antimony is to heat stibnite with scrap iron. This makes iron(II) sulfide and antimony. The antimony is separated and used.
About half of all antimony is used to make antimony trioxide for flame proofing.
It makes an alloy with lead. This alloy, 5% antimony and 95% lead, is harder than pure lead. It is used in lead acid batteries, as well as some other things. It is used as an alloy with lead in the pipes of pipe organs. Pewter has antimony in it. Some lead-free solder has antimony in it. It is used as an alloy with lead in ammunition for small arms and in covering of cables as well. It is also used in some alloys that have very little friction like Babbitt metal.
Another use is in a catalyst for making some plastics. Antimony(III) oxide is added to some glass to remove bubbles for things like television screens. Antimony is used as a dopant in electronics. Some antimony compounds were used as medicines to kill protozoans. The antimony pill was a chunk of antimony that was supposed to heal diseases. It is used in medicines for pets. Antimony sulfide is used in matches.
Antimony is toxic. Its toxicity is similar to arsenic, although it is less toxic than arsenic. Breathing in antimony dust can be very dangerous. Antimony reacts with strong oxidizing agents. Small amounts of antimony come out of plastic bottles where antimony was used as a catalyst. Some people were concerned that too much antimony was coming out.
Buckingham Palace is a palace in the City of Westminster, which is part of central London, England in the United Kingdom. It is the official residence where the British monarch lives and works. The palace is a setting for state occasions and royal hospitality, and has been a focus for the British people at times of national rejoicing and crisis.
Buckingham Palace was built in 1703 by John Sheffield, 1st Duke of Buckingham and Normandy, as a townhouse (a residence in London). It was bought by the British royal family in 1761. It became the official London home of the family in 1837 and was greatly expanded in the 19th century. It has 775 rooms, 19 staterooms, and 78 bathrooms. Leading up to it is a ceremonial road called The Mall. A German bomb damaged the Palace during the London blitz.
The Palace's guard is changed every day at 11am.
Amherst, Massachusetts
Amherst is a town in the American state of Massachusetts. It is in Hampshire County. There are three colleges in Amherst. It is named after Sir Jeffrey Amherst. It has a population of about 30,000 people.
2008 Summer Olympics
The 2008 Summer Olympics, officially known as the Games of the XXIX Olympiad, were celebrated in Beijing, People's Republic of China from August 8 to August 24. The opening ceremony began at 08:08:08 pm CST (12:08:08 UTC) at the Beijing National Stadium in Beijing, People's Republic of China. During the games, 10,500 athletes competed in 302 events in 28 sports.
The Olympic games were awarded to Beijing after a vote of the International Olympic Committee (IOC) on July 13 2001. The official logo of the games, titled "Dancing Beijing," features a stylised calligraphic character "jīng" (京, meaning "capital"), meaning the host city. The mascots of Beijing 2008 are the five Fuwa, each representing both a colour of the Olympic rings and a symbol of Chinese culture. The Olympic slogan, "One World, One Dream", calls upon the world to unite in the Olympic spirit. Several new NOCs were also recognised by the IOC.
The Chinese government used the games to promote China as an important and powerful country, and spent a lot of money on building new facilities and transportation systems for the games. The events were held in 37 venues, including 12 newly-built buildings. In 2007, former IOC president Juan Antonio Samaranch said that he thinks that the Beijing games will be "the best in Olympic history". Although there was some controversy about having the games in China, the IOC's former president Jacques Rogge said that the IOC has "absolutely no regrets" in choosing Beijing to host the 2008 games.
At the end of the Olympics, China won the total gold medal count, while the United States led the grand total medal count.
Here is the top of the medal table at the end of the games.
Medal numbers shown in bold are the highest in their section. China, the host nation is highlighted in lavender.
Pierre de Fermat
Pierre de Fermat (17 August 1601 – 12 January 1665) was a French lawyer at the "Parlement" of Toulouse, southern France, and a mathematician. Many people see him as the father of modern calculus.
His method of finding the biggest and smallest ordinates of curved lines also makes him a contributor to differential calculus, which was not known at that time. His studies in the theory of numbers give him the rank of the founder of the modern theory. He also made notable contributions to analytic geometry and probability.
He is also famous for making a simple mathematical statement (known as Fermat's Last Theorem) that he said he could prove, but he never wrote down his proof. Mathematicians tried to prove it for hundreds of years before finally managing it. Fermat probably did not really have a proof for this theorem, and only thought he did.
He proposed his principle on light which states that light selects the path which takes least time to travel.This principle was famous as Fermat principle.
Gottfried Leibniz
Gottfried Wilhelm Leibniz (also "Leibnitz" or "von Leibniz") 1 July 1 (21 June OS) 1646 – 14 November 1716) was a German intellectual who wrote mostly in French and Latin.
He played an important role in both philosophy and mathematics. He invented calculus independently of Newton, and his notation for derivatives is the one in general use since then. He also invented the binary system, foundation of modern computers.
He was taught law and philosophy. He served as secretary to two major German noble houses: one became the British royal family while he served it. Leibniz played a major role in the European politics and diplomacy of his day.
In philosophy, he is most remembered for optimism. He thought our universe is the best possible one God could have made. He was one of the great 17th century rationalists. René Descartes and Baruch Spinoza are the other two. His philosophy also both looks back to the Scholastic tradition and anticipates modern logic and analysis.
Leibniz also made contributions to physics and technology, and anticipated ideas which surfaced much later in biology, medicine, geology, probability theory, psychology, and information science. He wrote on politics, law, ethics, theology, history, and philology. Sometimes, he even wrote in verse. His contributions are scattered in journals and in tens of thousands of letters and unpublished manuscripts. There is no complete edition of Leibniz's writings, and a complete account of his accomplishments is not yet possible. Leibniz is sometimes known as the last "universal genius".
Leibniz is perhaps most famous for his involvement in development of calculus independent of Isaac Newton and creation of Leibniz Notation which is the standard form of calculus today.
Optimism is a philosophy and a way of life. Optimists believe that the world is generally a positive place to be in. In the view of an optimist, people and things are good. Many liberal optimists do not believe in original sin.
Optimism basically looks on the positive side, believing things will work out in the end. When a person is optimistic, it doesn't mean that they never doubt themselves. They might have a bad day or two. They recognize that they can make things better; there is a lesson to be learned from this, and they will move on.
The opposing theory is called pessimism. Gottfried Leibnitz was a famous optimist. Arthur Schopenhauer is often considered to be a famous pessimist.
Optimism is associated with the idea of a glass looking "half full", instead of looking "Half empty". Optimism is also a habit of looking on the bright side of a situation
Pessimism is an attitude of mind and a way to look at life. Pessimists believe that generally things are bad, and the world people live in is the worst possible world.
Someone who uses the philosophy is called a pessimist, they are the opposite of an optimist.
An example of pessimism is seeing that a glass of water is "half empty", not "half full".
The Church of Jesus Christ of Latter-day Saints
The Church of Jesus Christ of Latter-day Saints (LDS Church) is the largest group in the Mormon movement. It was started in 1830 in New York by Joseph Smith. They believe that Joseph Smith was a prophet who restored the church Jesus Christ set up on earth when he was alive. They teach that they are the only church that has the full gospel. They also believe that the Father, Son and Holy Spirit are three separate individuals, but all have the same purpose. LDS scriptures include the Bible, the Book of Mormon, the Doctrine and Covenants, and the Pearl of Great Price. Members of the church, often called Mormons, and properly known as Latter-Day Saints are known for being active in missionary work. They also believe in the importance of families.
The center of the Church is in Salt Lake City, Utah, but there are more than 15 million members living all over the world. About six million of them live in the United States. Four and a half million of them live in the Western United States and 1.8 million live in Utah. It is the second fastest growing church in the United States. It is the fourth largest in the United States. The leader of the Church is called the President of the Church, and members respect him as a prophet. Right now, the President of the Church of Jesus Christ of Latter-Day Saints is Russell M. Nelson. Latter-day Saints believe that God guides their prophet, just like Catholics believe God guides the Pope.
Latter-day Saints believe in the Holy Scriptures including the Bible and Book of Mormon- Another Testament of Jesus Christ. They also believe that it is important for families to spend a lot of time together, and that after they die, they can live together forever. Latter-day Saints do not drink alcohol, coffee, or tea; smoke tobacco; or use other drugs. They meet once a week on Sunday for church, where they take the sacrament and listen to short talks by members of their own congregation. They also have Sunday school to learn more about their religion. The Church also has activities during the week. Latter-day Saints also have buildings called temples. These are the most holy buildings in their religion. After a temple has been dedicated, only Latter-day Saints that are living lives in accordance with the teachings of the church can go in the temple.
Latter-day Saints believe in helping poor and needy people all around the world. Because of this, Latter-day Saints have given $1.2 billion, since 1985, in cash and assistance to other people. They also believe it is important to learn their family history, often called genealogy. They also help others to learn their family histories, and give access to all their family history records for free, through the internet, on the website Familysearch.org.
In 1842, Joseph Smith wrote 13 paragraphs describing what the Church and its members believe. These are those 13 beliefs:
The ARTICLES OF FAITH
There are several divisions of the Church. The biggest ones are areas. An area might be a whole country, or part of a continent. Another division is a temple district. A temple district contains all the congregations served by one temple. This often means a whole state, region, or large city. Still another division is the mission, which is an area to which missionaries are assigned; almost all of the world is part of a mission, whether or not missionaries live or seek converts there.
Another division of the church is the stake. Stakes contain all the Latter-day Saints in a geographic area (for example, the stake in Whittier, California serves all the Latter-day Saints in Whittier, Pico Rivera and La Mirada). A stake often contains several thousand members. Stakes are divided into wards.
In areas where the church is less established and there are not enough members to form a stake, a district is formed. Districts serve much the same role as stakes. In turn, districts are divided into branches. If the church membership grows large enough, a district will be changed into a stake and the branches into wards.
Each congregation is one ward (or branch). A ward might contain only people who speak a language other than the local language of its area. Examples include areas next to large U.S. military bases in foreign countries, where English-language wards may be organized, and major U.S. cities with many immigrants, where wards using Spanish, dialects of Chinese, or other languages are often formed. In some places, there are special wards for deaf people, where the services are held in the local sign language (such as American Sign Language in English-speaking North America). The church also has "singles wards", in which the congregation is made up only of single adults. In turn, there are two types of singles wards—Young Single Adult (YSA), for ages 18 to 30, and Single Adult (SA), for those over 30.
The church was founded by Joseph Smith in 1830 in upstate New York. It was probably due to the Book of Mormon, which Smith said he had translated from gold plates that were buried in a nearby hill. Smith's followers first went to Kirtland, Ohio in 1831. The first temple was built in Kirtland, and by the mid-1830s, there were over 17,000 members of the Church of Jesus Christ of Latter-Day Saints. In 1838, the Latter-day Saints settled in Independence and Far West, Missouri. They were driven out because people in Missouri did not trust Latter-day Saints. The Latter-day Saints then moved to Nauvoo, Illinois. There, Smith started to practice polygamy and tried to start a "theodemocracy," which combined Latter-day Saints rule with American democracy. In 1844, an attempt by Smith to shut down the Nauvoo newspaper led to Smith being accused of treason, followed by him being killed by a mob.
After Smith's death, there was a controversy over who should replace Smith. Brigham Young led most of the Latter-day Saints to Utah in 1847. When Utah became a territory in 1850, it was somewhat of a theocracy. Later in the 1850s, there was conflict between the Latter-day Saints and the U.S. government over control of the territory. This was called the Utah War. The Mountain Meadows massacre was part of the Utah War. In the late 19th and early 20th centuries, Latter-day Saints settled the "Mormon Corridor" in Utah and surrounding states in the Western United States. Some of the places they settled were Mesa, Arizona; San Bernardino, California; Las Vegas, Nevada; and Cardston, Alberta. By 1890, the Church of Jesus Christ of Latter-Day Saints had built temples in three Utah cities.
Brigham Young died in 1877. Around that time, the U.S. government made polygamy against the law. Polygamy had been practiced by Young and some members of the church since the 1840s. Laws by the U.S. government led to many Latter-day Saints leaders going into hiding, and many polygamists being sent to jail. In 1890, the church stopped polygamy. This is thought to be the beginning of the modern era of the Mormon church.
In the early 20th century, the Church of Jesus Christ of Latter-Day Saints grew, and opened its first temples outside of Utah. Soon into the 20th century, tithing (giving money to the Church) was made a part of being a good member. In 1995, Gordon Hinckley became President. He got the church to build many temples in the United States and elsewhere around the world. The current President is Russell M. Nelson after the death of Thomas S. Monson in January 2018.
Young people are encouraged to go on missions when they get old enough. Men may go for two years after they are 18 years old (as long as they have graduated from high school), and women may go for 18 months after they are 19 years old. Before an August 2012 change in church policy, men had to be 19 in most countries, and women throughout the world 21, before they could go on missions. More men go on missions than women do. These missionaries go to a "Missionary Training Center" for a few months where they learn how to be good missionaries, and then live in another place for their mission. The Church tells them where they need to go. Then they work with one other missionary who is the same gender as they are (called a "companion"), and change companions often so they are not always with the same person. Missionaries will go to people who live near them and teach them about the Church, and baptize people who want to join the Church. They also help people around them, even if these people are not in the Church. Often they help by building houses for people who need them.
Older people sometimes go on missions after their children grow up. They get to go with their spouse. There are many different kinds of missions for "senior missionaries". Some of them are only a few months, and some of them are a few years. These missions can be "service missions", which means that they go to help people who live in the area. Sometimes the senior missionary is a "mission president". This means that they lead and help young missionaries in the place where they go to live.
The LDS church has been heavily criticized since its creation. Some of the criticisms are listed below.
In Norse mythology, Fenrir (Old Norse: “he who dwells in the marshes”), also known as Fenrisúlfr (Old Norse: “Fenrir's wolf”), or Vanargand ("Monster of the River Van"), is a giant, monstrous wolf, son of Loki and the giantess Angrboða, and the brother of Hel and Jörmungandr.
Fenrir was tied up by the gods, but was destined to break free from his bonds and devour Odin during Ragnarök, afterwhich he is killed by Odin's son, Víðarr.
Fenrir has three sons, Hati ('hate'), Skoll and His human son Bjorn Black god of sorrow
Odin found out about a prophecy that the children of Loki and Angora would cause trouble for the gods. He had Fenrir brought to him along with its brother Jörmungandr and its sister Hel.
After throwing Jörmungandr into the sea and sending Hel into the land of the dead, Odin had the wolf raised among the Æsir. Only the god Týr was brave enough to feed the growing monster. The wolf got stronger and stronger. The gods were scared that he would eventually destroy them. They tried to chain it up. He agreed to be chained two times. Both times he easily broke the chains.
Odin had the dwarfs make the chain Gleipnir ("deceiver" or "entangler"). It looked like a silken ribbon but was made of six magical ingredients: the sound of a cat's step, the beard of a woman, the roots of a mountain, bear's sensibility, fish's breath, and bird's spittle.
The gods challenged Fenrir to break this chain as well. The wolf saw how thin and well made Gleipnir was and thought it was a trick. He agreed to try and break the chain, but only if one of the gods would put his hand in the wolf's mouth. He believed this would force them to free him if he could not break the chain. Only Týr was willing to put his hand in the wolf's mouth. Fenrir tried to break the chain. The more he tried, the tighter the chain held him. When the gods would not free him, the wolf bit off Týr's hand at the wrist.
It is said that at Ragnarök, the wolf will break free. He will join forces with the enemies of the gods and will then eat Odin. After that Viðarr, Odin's son, will slay the wolf to avenge his father's death. then fenrir's son Bjorn Black will finally meet his family only to see them fighting and at war the only people he belonged to and felt a part of are killing each other and all he can do is sit and watch because that's his purpose that is sorrow
Russell Crowe
Russell Ira Crowe (born 7 April 1964) is an actor with New Zealand citizenship who lives in Australia. He is most well known for the movie "Gladiator". This movie gave him his fame in America. He won the Academy award (Oscar) for Best actor in 2001, for acting in "Gladiator". He also starred as Jor-El in the 2013 movie "Man of Steel".
Crowe had attended Auckland Grammar School before moving to Australia.
He is married to Danielle Spencer. She is an Australian singer, songwriter and actress. They have two sons, Charles Spencer Crowe (born 2003) and Tennyson Spencer Crowe (born 2006).
Renin
A knight was a professional heavy cavalry soldier in the Middle Ages. They were the top soldiers to the kingdom, and protected it at all costs. Knights worked for lords or nobles, who in exchange would give them land if the knight would fight for them. Knights thought honour was very important, and they had a code of honour called chivalry. They always had a coat of arms, also called a crest.
Knights of the Commonwealth Realms today are named by the Sovereign One of the British orders of knighthood is known as the Order of the British Empire. These knights today are called 'Sir' and then their first name. Many members of nobility are descended from knights. For example: Wijerd Jelckama descended from a knight who died at the siege of Antioch (1199).
Knights were first used in the 4th century in the late Roman armies. The era of the knights ended in the 16th century as national armies replaced feudal armies. Many knights were recruited as officers in the new armies. Today's officer corps in Western armies began as groups of knights.
Although knights no longer fight as elite warriors, the act of knighting, or being given knighthood by a king or queen, still exists. The most well-known example of knighting today are tapping the shoulders of the person being knighted with the flat side of a sword. People who are alive today who have been given knighthood include Bill Gates, Clint Eastwood, Michael Caine, as well as former U.S. president, the late George H.W. Bush.
Kuiper belt
The Kuiper belt is an area of the Solar System beyond the orbit of Neptune (at 30 astronomical units) to 50 AU from the Sun.
The objects within the Kuiper Belt together with the members of the "scattered disk" beyond, are together called trans-Neptunian.
Many objects such as dwarf planets in the Kuiper belt are much bigger than the ones in the asteroid belt and are round. At least some Kuiper belt objects are icebound.
The first objects in the Kuiper belt to be found were Pluto and Charon (moon) but the belt was only identified and named in 1992 when more Kuiper belt objects (KBOs) were found. A few thousand have since been discovered and more than 70,000 KBOs over 100 km (62 mi) in diameter are thought to exist.
Moles are small mammals adapted to a burrowing (under the ground) lifestyle. This lifestyle is called "fossorial".
Moles are found in North America, Europe and Asia. They eat insects, larvae or worms. Moles have velvety, soft fur. They have powerful front paws so they can dig. A mole has an extra thumb.
The family includes the shrew moles and the desmans. There are
three subfamilies, 17 genera and 46 species in total in this very common group of mammals. Moles have poor vision.
The largest type of mole is the Russian desman. The smallest type of mole is the American shrew mole.
Professor Terence Chi Shen Tao is a Chinese-Australian mathematician who currently resides in the United States. In 2006, Tao won the Fields Medal for his work in number theory. Tao shared the award with three other mathematicians. He also won the FRS in 2007. He is known for his studies in harmonic analysis, partial differential equations, combinatorics, analytic number theory and representation theory. Tao teaches math at UCLA.
Tao was born on 17 July 1975 in Adelaide, South Australia, Australia. His parents are Han. Tao is the youngest person to be in the International Mathematical Olympiad.
Ever since he was a young child he had shown great skills in mathematics and logic.
His father claimed that at the age of 2, during a family gathering, the infant Tao taught a 5-year-old child mathematics and English. According to Smithsonian Online Magazine, Tao taught himself arithmetic by the age of two. When asked by his father how he knew numbers and letters, he said he learned them from "Sesame Street". Aside from English, Tao speaks fluent Cantonese, but does not write Chinese. He was promoted to a full professor at age 24. He currently lives with his wife and son in Los Angeles, California.
Fritz Lang
Fritz Lang (5 December 1890 – 2 August 1976) was a Austrian director, screenwriter, and movie producer. His movies include "Metropolis" and "M". He is one of the most famous German expressionist filmmakers.
Lang was born in Vienna. He died in Beverly Hills, California.
Scattered disc
The scattered disc (or scattered disk) is a distant part of the solar system. The area has small icy minor planets known as scattered disc objects (SDOs). The part of the scattered disc closest to the sun is in an area of space called the Kuiper belt. The Oort cloud lies beyond the scattered disc. The first SDO was found in 1995 by Spacewatch.
The scattered disk is still not understood well. Astronomers believe that it was created when objects in the Kuiper belt were "scattered" by the gravity of the outer planets, mainly Neptune. Unlike most objects in the Solar System which move in a round and flat path, scattered disc objects go every which way. Different SDOs have different orbital eccentricity and orbital inclination.
Flatworms (Platyhelminthes, Greek "platy"': flat; "helminth": worm) are a phylum of invertebrates. They are relatively simple animals. They have soft bodies.
With about 25,000 known species, they are the largest phylum of animals without a body cavity. Flatworms can be found in marine, freshwater, and even damp terrestrial environments.
A troublesome terrestrial example is the New Zealand flatworm, "Arthurdendyus triangulatus". It is an invasive species which colonized large areas of Ireland and Scotland. It was brought there by accident in the 1960s. Since then, it has destroyed most of the indigenous earthworms.
Most free-living flatworms found in Britain are very small ranging from 5mm to less than 1 cm. They are usually black and can easily be mistaken for debris. These are mostly found in freshwater rivers or streams and are of the Turbellaria class.
Most flatworms (over 50%) are parasitic on other animals. There are four classes:
Flatworms are one of the invertebrate groups which are studied in school biology. The main reason for this is that they may infect humans, pets and farmyard animals. Some do enormous harm to humans and their livestock. Schistosomiasis, caused by one genus of trematodes, is the second most devastating of all human diseases caused by parasites, surpassed only by malaria. Effective treatments are now available for these infections. Also, in first-world countries, regulations on domestic cattle prevent infected meat from reaching the human hosts.
Trematode
The Trematodes are a class of flatworms in the phylum Platyhelminthes. They are called flukes, and are internal parasites of molluscs and vertebrates. Most trematodes have a complex life cycle with at least two hosts. The primary host, where the flukes sexually reproduce, is a vertebrate. The intermediate host, which is the agent of dispersal, is usually a snail.
The trematodes or flukes are estimated to include 18,000 to 24,000 species
Fluke can refer to different things:
Period instruments
The period instruments are musical instruments which have been made in the same way they were made hundreds of years ago. This is done so that earlier music will sound like it did when it was first composed.
Musical instruments have changed a lot during the last few centuries. Composers like Johann Sebastian Bach (1685-1750) wrote music for instruments which sounded differently from the way they do today. Although most of the orchestral instruments we use nowadays were already in use in Bach’s day, instrument makers have made changes to them. These changes often gave the instruments a bigger sound so that they could be heard well in large concert halls. Orchestras also have increased in size.
During the 20th century musicians started to realize that the way we play the music of Bach and other composers was making the music sound different from how it would have been first heard. People became interested in hearing what the music would have sounded like back in the 17th and early 18th centuries (the Baroque period). Few of the old instruments still existed and many that had survived had been “modernized”. So instrument makers started to make instruments in the old ways. Some musicians and orchestras started to play these instruments. The instruments are often called “period instruments” (or "authentic instruments" or "historical instruments") because they are made so that they are like instruments of earlier periods.
Today's instruments of the string family (violin, viola, cello and double bass) may look almost the same as the old ones, but there are differences: the old fingerboards were shorter and the strings used to be made of gut, not metal. The bows were shaped differently, and the technique of playing was also different.
Woodwind instruments have changed a lot since the old times. Flutes, oboes and bassoons hardly had any keys (the metal keys which help to cover the holes). The keys were added in the 18th century and it made it much easier to play difficult music with lots of sharps and flats. Clarinets were not invented until the late 18th century, but even they have developed a lot since Mozart’s time (1756-1791).
Brass instruments like the trumpet and French horn now have valves which make it easier to play in different keys. The trombone is the only instrument which has not changed. The tuba was invented in the early 19th century.
Percussion instruments include the timpani which have changed a lot. In Baroque times they had calf-skin heads but now the heads are made of plastic. This makes a very different sound.
Baroque keyboard instruments included the harpsichord and clavichord. The piano was invented during the 18th century. It still sounded very different when Mozart wrote for it. The frame was made of wood, not of cast iron, and the hammers had leather heads instead of felt. A modern piano sounds quite different.
The interest in period instruments started in the mid 20th century. People like Wanda Landowska played Baroque keyboard music on the harpsichord instead of the piano. Conductors like Nikolas Harnoncourt have trained small orchestras to play on period instruments using techniques which were used in Baroque times. Gradually musicians also started using period instruments for music from the Classical music period (the time of Mozart and Beethoven). Even in the mid 18th century the modern orchestra had not yet evolved. In recent years conductors like John Elliot Gardiner have performed music by Hector Berlioz on period instruments. There are now many small instrumental groups and orchestras who regularly perform on period instruments e.g. The English Concert and the English Baroque Soloists.
Does old music sound better on period instruments? Musicians do not all agree about this question and they still argue a lot about the way that some of the music should be played. However, it is important to listen to the way that period instruments are played. Musicians such as the violinist Andrew Manze have done a lot of research in old books and old music and have done a lot to make people rethink the way in which music from former centuries should be performed.
Monogenea
Monogenea are a type of flatworm. They are parasites which means that they always need another creature to live on. They live on the outside of their host. Some parasites, like tapeworms, live on the inside of a larger creature.
Monogenea are especially common on the skin, fins and gills of fish. Less commonly, they can be found in the urinary bladder and rectum of cold-blooded vertebrates. No types of Monogenea infect birds, but one ("Oculotrema hippopotami") infects mammals. It is a parasite in the eye of a hippopotamus.
Monogenea are usually hermaphrodites. This means that they have both sexes. First they are males, and only later do they become females as well. They have direct life-cycles with no asexual reproduction (unlike the Digenea). In those types of Monogenea that lay eggs, the young ones grow to a larval stage called an "oncomiracidium". It is at the "larva" stage that they are able to travel from one host creature to another. When they are adults, Monogenea eat the blood, mucus, and epithelial cells of their host creature.
Turbellaria
Bifröst
In Norse mythology, Bifröst is the bridge between the land of mortals, Midgard, and the land of the gods, Asgard. The gods cross it every day to meet and decide things at Urdarbrunn (Well of Urd) under the tree Yggdrasill. The bridge is a rainbow. It was built by the Æsir and is guarded by the god Heimdall.
Only the thunder god Thor was not allowed to use the rainbow, because he may break it. The bridge will be destroyed at the end of the world, Ragnarök, when the relentless army of giants and the dead run on it to attack Asgard.
Alternative names: Bilröst, Ásbrú, Bifrost.
Mendoza Province
Mendoza is a Province of Argentina. It is in the region called Cuyo. The province borders San Juan in the north, San Luis and La Pampa in the east, Neuquén in the south, and Chile to the west.
It is the major wine producer of Argentina and has many other crops. It has the highest mountain in the country, Aconcagua.
Mendoza has a population of 1,579,651 people (2001). Spanish is the main language but many people also speak English, Italian and Portuguese.
Dosimeter
A dosimeter is a tool that can measure different levels of hazardous environments. Common dosimeters are those used for sound (They measure how loud a certain noise is) and radiation (they measure how much radiation there is in an environment).
A Geiger counter (sometimes called Geiger-Müller counter) is an instrument that measures ionizing radiation such as alpha particles, beta particles, or gamma rays. It is best known as a hand held radiation survey instrument, but it can also be used as a bench instrument or permanently installed.
The original operating principle was discovered in 1908 and since the subsequent development of the Geiger-Müller tube in 1928 the counter has been a very popular instrument due to its robust sensing detector and element and relatively low cost.
The radiation sensor is a Geiger-Müller tube which gives out an electronic signal when radiation is present.
The readout is counts or radiation dose. The counts display is commonly "counts per second". Radiation dose rate is displayed in a unit such as the sievert.
The readout can be analogue or digital, and modern instruments have communications with a computer or network.
There is usually an option to produce audible representing the radiation intensity. This allows the user to concentrate on manipulation of the instrument without looking at the display.
For alpha particles and low energy beta particles the "end window" type of GM tube is used as these particles have a limited range even in free air and are easily stopped by a solid material.
Geiger counters can be used to detect gamma radiation, and for this the windowless tube is used. A special type of the Geiger tube is used to measure neutrons.
For hand-held units there are two fundamental physical configurations: the "integral" unit, with both detector and electronics in the same unit, and the "two-piece" design which has a separate detector probe and an electronics module connected by a short cable.
There is a particular type of gamma instrument known as a "hot spot" detector which has the detector tube on the end of a long pole or flexible conduit. These are used to measure high radiation gamma locations whilst protecting the operator by means of distance shielding.
In 1908 Hans Geiger, developed a technique for detecting alpha particles that would later be used in the Geiger-Müller tube. This counter was only capable of detecting alpha particles but in 1928 Geiger and Walther Müller developed the sealed Geiger-Müller tube which could detect more types of ionizing radiation and it became a practical radiation sensor. Once this was available, Geiger counter instruments could be produced relatively cheaply.
Wide area network
A world wide area network, or WAN, is made up of several computer networks connected together, often over the Internet. In most cases, the networks in WANs all belong to the all same company or school.
WANs are used to connect LANs and other types of networks together, so that users and computers in one location can communicate with users and computers in other locations. Many WANs are built for one particular organization and are private. Others, built by Internet service providers, provide connections from an organization's LAN to the Internet. WANs are often built using leased lines. At each end of the leased line, a router connects to the LAN on one side and a hub within the WAN on the other. Leased lines can be very expensive. Instead of using leased lines, WANs can also be built using less costly circuit switching or packet switching methods. Network protocols including TCP/IP deliver transport and addressing functions. Protocols including Packet over SONET/SDH, MPLS, ATM and Frame relay are often used by service providers to deliver the links that are used in WANs. X.25 was an important early WAN protocol, and is often considered to be the "grandfather" of Frame Relay as many of the underlying protocols and functions of X.25 are still in use today (with upgrades) by Frame Relay.
Academic research into wide area networks can be broken down into three areas: mathematical models, network emulation and network simulation.
Performance improvements are sometimes delivered via WAFS or WAN optimization.
Corporate network
Noodles are thin strips of pasta which are made from dough. The dough for the noodles can be made in different ways:
Noodles are usually cooked in boiling water. Sometimes, after boiling, noodles are fried in a pan with other ingredients while being moved around in order to be mixed well, which is called stir frying.
Gaia Online
Jotunheim
Jötunheimr (or Jotunheim) is the land of the giants in the Norse mythology. Two kinds of giants (or Jotuns) live in Jötunheimr, rock giants and frost giants. From here they can attack the humans in Midgard and the gods in Asgard. Jotunheim is ruled by King Thrym.
Leia Organa
Princess Leia Organa, born Leia Amidala Skywalker, is a character from the "Star Wars" universe. Leia was played by Carrie Fisher in the original three "Star Wars" movies: "", "", and "". She is also a main character in many novels that are set in the "Star Wars" universe.
Organa is the daughter of Padmé Amidala and Anakin Skywalker. She has a twin brother, Luke Skywalker. Her mother died giving birth to her and her brother. The twins were taken at birth and given to different families to raise. Leia was raised by the family of Alderaan's Senator Bail Organa as his daughter.
Leia was in a romantic relationship with Han Solo and both have a child Ben Solo. Kylo Ren becomes evil and becomes the main villain in Star Wars sequel trilogy.
Ayrton Senna da Silva (March 21, 1960 – May 1, 1994), better known as Ayrton Senna, was a Brazilian Formula 1 driver who won the championship three times, in 1988, 1990 and in 1991. He died in an accident that took place on the Autodromo Enzo e Dino Ferrari, better known as Imola, in the 1994 San Marino Grand Prix. He is considered by many people to be the most skilled driver in the history of motor racing.
Senna was born in São Paulo, a city in Brazil. When he was four years old, he first got into a kart. When he was 13, he entered a karting competition for the first time. A fun fact is that he started his first kart race on pole position. The start places were written on pieces of paper and put in a driver's helmet, and he drew number one. Because he was a lot lighter than the other racers, he was much faster than all of them. He won the "South American Kart Championships" in 1977 and was runner-up in the World Championship, but he never won it.
In 1981 he raced in the British Formula Ford 1600 championship, and won it as well. He also changed his name to Senna, since da Silva is used a lot in Brazil.
In 1982 Senna won two European championships; the European and the British Formula Ford 2000. After testing with Williams, McLaren, Brabham and Toleman, he got a place within the Toleman team for the 1984 Formula One season.
The Toleman team was a very small team compared to other famous teams like Williams, McLaren and Brabham. Even though, the team built a car good enough to let Senna impress with his talents. Ayrton Senna scored his first championship point on April 7, 1984 at the South African Grand Prix. Three races later, Senna impressed at the Monaco Grand Prix, where it was raining. Senna started on the 13th position, but right after the race started, he soon was gaining position after position on the track that is known for its small roads. On the 19th lap, he took second place from Niki Lauda and was making up a lot of time to the race leader, Alain Prost. It started to rain harder and the race was stopped on the 31st lap. Even though almost everyone agrees Senna should have won the race, Senna had a result to be proud of. In the rest of the season he would finish third place in two races, the British and the Portuguese Grand Prix. He finished his first year in Formula One racing on a shared 9th position and 13 points, sharing his 9th position with Nigel Mansell.
Senna did not just race in Formula One that year. He also co-drove a Porsche 956 with Henri Pescarolo and Stefan Johansson in the 1000km Nürburgring race. He also raced in a race to celebrate the opening of the new Nürburgring. He won this race.
The following year, joined the Lotus team, and many thought he would be able to meet his potential. The other driver for Lotus was Elio De Angelis. Ayrton scored his first of 65 pole positions in his career during the Brazilian Grand Prix, but was not able to win the race. He retired with an electrical problem after 48 laps. He did not had to wait a long time for his first ever victory in Formula 1, however, because he won the next race, the Portuguese Grand Prix starting off from pole position again. He showed his true talent driving in such bad weather which even later champion Alain Prost could not race in (he spun into a wall). The rest of the season was not too good for Senna though. He scored a lot of points but often retired because of mechanical problems. He won the Belgian Grand Prix in another wet race and finished 4th at the end of the season, scoring 38 points total. He also took two first places, two second places, two third places and seven pole positions.
His second season with Lotus, in 1986, was better than his first. The Lotus Car was a lot more reliable. He finished second in the Brazilian Grand Prix, with only Nelson Piquet being faster than Ayrton. He even took the lead in the World Championship standings during the Spanish Grand Prix after managing to keep Nigel Mansell away from stealing the victory. The gap between both drivers was only 14 thousand of a second. He did not have a lot of time to enjoy his lead, however, because his Lotus did not have the reliability Ayrton needed to chase after the title.
Adriano Emperado
Adriano Emperado (June 16, 1926 - April 4, 2009) is a Filipino-Hawaiian martial artist. He is one of five martial artists who developed a system of self-defense called Kajukenbo.
As a young man in Honolulu, Hawaii, Emperado began his early training in the Filipino art of Escrima. That had a huge impact on his development of Kajukenbo. Emperado later became interested in Kenpo Karate. After years of training, he earned a fifth-degree black belt under the direction of William K.S Chow.
The first school of Kajukenbo was directed by Adriano Emperado and his brother, Joe Emperado. In 1959, Emperado began combining Wushu into Kajukenbo. Adriano Emperado's life has been about teaching the martial arts. "Black Belt Magazine" named him its Instructor of the Year 1991.
Paramaribo (, nickname: Par′bo) is the capital city of Suriname. About 250,000 people live in the city. It is at the Suriname River about 15 km before the river flows into the Atlantic Ocean.
Paramirbo used to be called in French "Bourg nommé des Juifs" because so many Jewish people lived there.
Ancient Domains of Mystery
ADOM (Ancient Domains of Mystery) is a computer game. More specifically, it's a Roguelike.
Jagdterrier
Erwin Schrödinger
Erwin Schrödinger (Erwin Rudolf Josef Alexander Schrödinger, 12 August 1887, Vienna-Erdberg 4 January 1961, Vienna) was an Austrian physicist and theoretical biologist. He was one of the founding fathers of quantum theory and won the Nobel Prize in Physics in 1933.
Schrödinger went to the Academic Gymnasium from 1898 to 1906.
Afterwards he studied mathematics and physics in Vienna and wrote his habilitation up from 1910.