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BARCE Barcelona is a city in Spain. It is the capital and largest city of Catalonia, and the second most populous municipality of Spain. With a population of 1.6 million within city limits, its urban area extends to numerous neighboring municipalities within the Province of Barcelona and is home to around 4.7 million people, making it the sixth most populous urban area in the European Union after Paris, London, Madrid, the Ruhr area and Milan. It is the largest metropolis on the Mediterranean Sea, located on the coast between the mouths of the rivers Llobregat and Besòs, and bounded to the west by the Serra de Collserola moAuntain range, the tallest peak of which is 512 metres (1,680 feet) high. Founded as a Roman city, in the Middle Ages Barcelona became the capital of the County of Barcelona. After merging with the Kingdom of Aragon, Barcelona continued to be an important city in the Crown of Aragon as an economic and administrative centre of this Crown and the capital of the Principality of Catalonia. Barcelona has a rich cultural heritage and is today an important cultural centre and a major tourist destination. Particularly renowned are the architectural works of Antoni Gaudí and Lluís Domènech i Montaner, which have been designated UNESCO World Heritage Sites. The headquarters of the Union for the Mediterranean is located in Barcelona. The city is known for hosting the 1992 Summer Olympics as well as world-class conferences and expositions and also many international sport tournaments.


ELONA


CATH CHU The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with more than 1.29 billion members worldwide. As one of the oldest religious institutions in the world, it has played a prominent role in the history and development of Western civilization. Headed by the Bishop of Rome, known as the Pope, the church’s doctrines are summarized in the Nicene Creed. Its central administration, the Holy See, is in the Vatican City, enclaved within Rome, Italy. The Catholic Church teaches that it is the One, Holy, Catholic and Apostolic church founded by Jesus Christ in his Great Commission, that its bishops are the successors of Christ’s apostles, and that the Pope is the successor to Saint Peter to whom primacy was conferred by Jesus Christ. It maintains that it practices the original Christian faith, reserving infallibility, passed down by sacred tradition. The Latin Church, the Eastern Catholic Churches, and institutes such as mendicant orders and enclosed monastic orders reflect a variety of theological and spiritual emphases in the Church.


HOLIC HURCH


The Pietà is a work of Renaissance sculpture by Michelangelo Buonarroti, housed in St. Peter’s Basilica, Vatican City. It is the first of a number of works of the same theme by the artist. The statue was commissioned for the French Cardinal Jean de Bilhères, who was a representative in Rome. The sculpture, in Carrara marble, was made for the cardinal’s funeral monument, but was moved to its current location, the first chapel on the right as one enters the basilica, in the 18th century. It is the only piece Michelangelo ever signed. This famous work of art depicts the body of Jesus on the lap of his mother Mary after the Crucifixion. The theme is of Northern origin, popular by that time in France but not yet in Italy. Michelangelo’s interpretation of the Pietà is unprecedented in Italian sculpture. It is an important work as it balances the Renaissance ideals of classical beauty with naturalism.


A cartoon is a type of two -dimensional illustration, possibly animated. While the specific definition has changed over time, modern usage refers to a typically non-realistic or semi-realistic artistic style of drawing or painting, an image or series of images intended for satire, caricature, or humor, or a motion picture that relies on a sequence of illustrations for its animation. An artist who creates cartoons is called a cartoonist. The concept originated in the Middle Ages and first described a preparatory drawing for a piece of art, such as a painting, fresco, tapestry, or stained glass window. In the 19th century, it came to refer to humorous illustrations in magazines and newspapers, and after the early 20th century, it referred to comic strips and animated films.


Philosophy is the study of general and fundamental problems concerning matters such as existence, knowledge, values, reason, mind, and language. The term was probably coined by Pythagoras (c. 570–495 BCE). Philosophical methods include questioning, critical discussion, rational argument, and systematic presentation. Classic philosophical questions include: Is it possible to know anything and to prove it? What is most real? Philosophers also pose more practical and concrete questions such as: Is there a best way to live? Is it better to be just or unjust (if one can get away with it)? Do humans have free will?



The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution. The model describes how the universe expanded from a very high density and high temperature state, and offers a comprehensive explanation for a broad range of phenomena, including the abundance of light elements, the cosmic microwave background (CMB), large scale structure and Hubble’s law. If the known laws of physics are extrapolated to the highest density regime, the result is a singularity which is typically associated with the Big Bang. Physicists are undecided whether this means the universe began from a singularity, or that current knowledge is insufficient to describe the universe at that time. Detailed measurements of the expansion rate of the universe place the Big Bang at around 13.8 billion years ago, which is thus considered the age of the universe. After the initial expansion, the universe cooled sufficiently to allow the formation of subatomic particles, and later simple atoms. Giant clouds of these primordial elements later coalesced through gravity in halos of dark matter, eventually forming the stars and galaxies visible today.



Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically using a hypothetical device known as a time machine, in the form of a vehicle or of a portal connecting distant points in space time, either to an earlier time or to a later time, without the need for the time-traveling body to experience the intervening period in the usual sense. Time travel is a widely-recognized concept in philosophy and fiction. It was popularized by H. G. Wells’ 1895 novel The Time Machine, which moved the concept of time travel into the public imagination. However, it is uncertain if time travel to the past is physically possible. Forward time travel, outside the usual sense of the perception of time, is possible according to special relativity and general relativity, although making one body advance or delay more than a few milliseconds compared to another body is not feasible with current technology. As for backwards time travel, it is possible to find solutions in general relativity that allow for it, but the solutions require conditions that may not be physically possible. Traveling to an arbitrary point in space time has a very limited support in theoretical physics, and usually only connected with quantum mechanics or wormholes, also known as Einstein-Rosen bridges.


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