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GNSS Positioning Calculation
The global navigation satellite system (GNSS) positioning for receiver's position is derived through the calculation steps, or algorithm, given below. In essence, a GNSS receiver measures the transmitting time of GNSS signals emitted from four or more GNSS satellites (giving the pseudorange) and these measurements are used to obtain its position (i.e., spatial coordinates) and reception time.
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  • 05 Dec 2022
Topic Review
Mega Borg Oil Spill
The Mega Borg Oil Spill occurred in the Gulf of Mexico on June 8, 1990, roughly 50 miles off the coast of Texas , when the oil tanker Mega Borg caught on fire and exploded. The cleanup was one of the first practical uses of bioremediation.
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  • 05 Dec 2022
Topic Review
Liexian Zhuan
The Liexian Zhuan, sometimes translated as Biographies of Immortals, is the oldest extant Chinese hagiography of Daoist xian "transcendents; immortals; saints; alchemists". The text, which compiles the life stories of about 70 mythological and historical xian, was traditionally attributed to the Western Han dynasty editor and imperial librarian Liu Xiang (77-8 BCE), but internal evidence dates it to the 2nd century CE during the Eastern Han period. The Liexian Zhuan became a model for later authors, such as Ge Hong's 4th century CE Shenxian zhuan ("Biographies of Divine Immortals").
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  • 05 Dec 2022
Topic Review
Bearing (Navigation)
In navigation, bearing is the horizontal angle between the direction of an object and another object, or between it and that of true north.
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  • 05 Dec 2022
Topic Review
Taxonomy
In biology, taxonomy (from grc τάξις (taxis) 'arrangement', and -νομία (-nomia) 'method') is the scientific study of naming, defining (circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (division is sometimes used in botany in place of phylum), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the evolutionary relationships among organisms, both living and extinct.
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  • 05 Dec 2022
Topic Review
Restoration Movement
The Restoration Movement (also known as the American Restoration Movement or the Stone-Campbell Movement, and pejoratively as Campbellism) is a Christian movement that began on the United States frontier during the Second Great Awakening (1790–1840) of the early 19th century. The pioneers of this movement were seeking to reform the church from within and sought "the unification of all Christians in a single body patterned after the church of the New Testament.":54 Especially since the mid-20th century, members of these churches do not identify as Protestant but simply as Christian.:213 The Restoration Movement developed from several independent strands of religious revival that idealized early Christianity. Two groups, which independently developed similar approaches to the Christian faith, were particularly important. The first, led by Barton W. Stone, began at Cane Ridge, Kentucky, and identified as "Christians". The second began in western Pennsylvania and Virginia (now West Virginia) and was led by Thomas Campbell and his son, Alexander Campbell, both educated in Scotland; they eventually used the name "Disciples of Christ". Both groups sought to restore the whole Christian church on the pattern set forth in the New Testament, and both believed that creeds kept Christianity divided. In 1832 they joined in fellowship with a handshake. Among other things, they were united in the belief that Jesus is the Christ, the Son of God; that Christians should celebrate the Lord's Supper on the first day of each week; and that baptism of adult believers by immersion in water is a necessary condition for salvation. Because the founders wanted to abandon all denominational labels, they used the biblical names for the followers of Jesus.:27 Both groups promoted a return to the purposes of the 1st-century churches as described in the New Testament. One historian of the movement has argued that it was primarily a unity movement, with the restoration motif playing a subordinate role.:8 The Restoration Movement has since divided into multiple separate groups. There are three main branches in the U.S.: the Churches of Christ, the unaffiliated Christian Church/Church of Christ congregations, and the Christian Church (Disciples of Christ). Some characterize the divisions in the movement as the result of the tension between the goals of restoration and ecumenism: the Churches of Christ and unaffiliated Christian Church/Church of Christ congregations resolved the tension by stressing restoration, while the Christian Church (Disciples of Christ) resolved the tension by stressing ecumenism.:383 A number of groups outside the U.S. also have historical associations with this movement, such as the Evangelical Christian Church in Canada and the Churches of Christ in Australia. Because the Restoration Movement lacks any centralized structure, having originated in a variety of places with different leaders, there is no consistent nomenclature for the movement as a whole. The term "Restoration Movement" became popular during the 19th century; this appears to be due to the influence of Alexander Campbell's essays on "A Restoration of the Ancient Order of Things" in the Christian Baptist. The term "Stone-Campbell Movement" emerged towards the end of the 20th century as a way to avoid the difficulties associated with some of the other names that have been used, and to maintain a sense of the collective history of the movement.
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  • 08 Dec 2022
Topic Review
First Generation of Intellectual Movements in Iran
First Generation of Intellectual movements in Iran (Persian: نسل اول جنبش های روشنفکری در ایران‎, romanized: Nasl-e Aval-e Jonbesh Hay-e Roshan Fekri dar Iran) or Iranian Enlightenment (Persian: روشنگری ایرانی‎, romanized: Roshangari-e Irani) was a period in the mid-19th- to early-20th- century in Iran, which was accompanied by new ideas in the traditional Iranian society. During the rule of the Qajar dynasty, and especially after the defeat of Iran, in the war with the Russian Empire, due to cultural exchanges, new ideas were formed among the educated class of Iran. This military defeat also encouraged the Qajar commanders to overcome the backwardness. The establishment of Dar ul-Fonun, the first modern university in Iran and the arrival of foreign professors, caused the thoughts of European thinkers to enter Iran, followed by the first signs of enlightenment and intellectual movements in Iran. During this period, intellectual groups were formed in Secret societies and secret associations. Among these Secret societies, we can mention Mirza Malkam Khan's "Faramosh Khaneh" (based on Masonic lodges), Anjoman-e Bagh-e Meykadeh, Society of Humanity and Mokhadarat Vatan Association. These groups spread their ideas by distributing leaflets and newspapers. These secret societies stressed the need to reform the land and administrative system and reduce the role of the clergy in society, as well as to limit the rulers within the framework of the law. Iranian thinkers based their work on confronting religious traditions, they were confronted with Shia Islam, which on the one hand was mixed with superstitions, and on the other hand, the strictness and intellectual prejudice of some religious people caused intellectual-scientific decline. Among the thinkers of this period were Mirza Malkam Khan, Mirza Abdul'Rahim Talibov, Mirza Fatali Akhundov, Iraj Mirza, Mirzadeh Eshghi, Aref Qazvini, Mirza Hassan Roshdieh, Mirza Aqa Khan Kermani, Hassan Taqizadeh, Amir Kabir and Haydar Khan Amo-oghli. Most of these intellectuals expressed their thoughts through poetry and fiction, simple stories and parables that were easier for people to understand helped to spread Enlightenment throughout Iran. The first generation of intellectuals in Iran went beyond the borders of this country and influenced neighboring countries such as Afghanistan and the Arab world such as Egypt. People like Jamāl al-Dīn al-Afghānī collaborated with most of the great thinkers of this period from Iran.
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  • 05 Dec 2022
Biography
George Escol Sellers
George Escol Sellers (November 26, 1808 – January 1, 1899) was an American businessman, mechanical engineer, and inventor. He is associated with designing railroad locomotives and related equipment. He was the target of a confusing name appropriation by author Mark Twain. Sellers was born on November 26, 1808, in Philadelphia, Pennsylvania.[1] His birthplace was near the Philadelphia Mint
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  • 05 Dec 2022
Topic Review
Rolls-Royce Phantom VII
The Rolls-Royce Phantom VII is a full-sized luxury saloon car made by Rolls-Royce Motor Cars. Launched in 2003, it was the first Rolls-Royce developed and introduced after BMW purchased the right to use the Rolls-Royce name and logo in 1998. It is credited with successfully reviving the Rolls-Royce brand and restoring Rolls-Royce's reputation as a maker of luxury cars. The Phantom Drophead Coupé and Phantom Coupé are two-door derivatives of the Phantom launched in 2007 and 2008, respectively. From 2003 until the launch of the smaller Ghost in 2009, the Phantom was the only car produced by Rolls-Royce. The Phantom acted as the company's flagship model, but was less exclusive than all previous Phantoms (none of which surpassed the 600 per year).
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  • 05 Dec 2022
Topic Review
Ravidassia Religion
The Ravidassia religion, also called Ravidasia Dharm, is an Indian religion, founded in the 14th-century. It is based on the teachings of the 14th century Indian guru Ravidass, revered as a Satguru, particularly by ravidasia community Historically, Ravidassia represented a range of beliefs in the Indian subcontinent, with some devotees of Ravidass counting themselves as Ravidassia, but first formed in the early 20th-century in colonial British India. The Ravidassia community began to take on more cohesion following 1947, and the establishment of successful Ravidassia communities in the diaspora. Ravidassias believe that Ravidas is their Guru (saint) whereas the Sikhs have traditionally considered him as one of many bhagats (holy person). Further, Ravidassias accept living sants of Ravidass Deras as Guru whereas the Sikhs do not, states Ronki Ram. A new Ravidassia religion was launched following an assassination attack on their visiting living Guru Sant Niranjan Dass and his deputy Ramanand Dass in 2009 in Vienna by Sikh militants. Ramanand Dass died from the attack, Niranjan Dass survived his injuries, while over a dozen attendees at the temple were also injured. This triggered a decisive break of the Ravidassia group from the orthodox Sikh structure. Prior to their break from Sikhism, the Dera Bhallan revered and recited the Guru Granth Sahib of Sikhism in Dera Bhallan. However, following their split from mainstream Sikhism, the Dera Bhallan compiled their own holy book based exclusively on Ravidas's teachings, the Amritbani Guru Ravidass Ji, and these Dera Bhallan Ravidassia temples now use this book in place of the Guru Granth Sahib.
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  • 05 Dec 2022
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