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In magnetic confinement fusion , a divertor is a magnetic field configuration which diverts the heat and particles escaped from the magnetically confined plasma to dedicated plasma-facing components , thus spatially separating the region plasma-surface interactions from the confined core (in contrast to the limited configuration). This requires establishing a separatrix -bounded magnetic configuration, typically achieved by creating poloidal field nulls (X-points) using external coils.

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80-451: The divertor is a critical part of magnetic confinement fusion devices, first introduced by Lyman Spitzer in the 1950s for the stellarator concept. It extracts heat and ash produced by the fusion reaction while protecting the main chamber from thermal loads, and reduces the level of plasma contamination due to sputtered impurities. In tokamaks , high confinement modes are more readily achieved in diverted configurations. At present, it

160-655: A synod sometimes exists. This congregation / presbytery / synod / general assembly schema is based on the historical structure of the larger Presbyterian churches, such as the Church of Scotland or the Presbyterian Church (U.S.A.) ; some bodies, such as the Presbyterian Church in America and the Presbyterian Church in Ireland , skip one of the steps between congregation and General Assembly, and usually

240-551: A call for the pastor or minister's service, but this call must be ratified by the local presbytery. The pastor or minister is a teaching elder, and Moderator of the Session, but is not usually a member of the congregation; instead, this person is a member of the Presbytery of which the given church is a member. Ruling elders are elected by the congregation and ordained to serve with the teaching elders, assuming responsibility for

320-680: A chaplaincy by the PCofE and the Church of Scotland in 1908 and as a congregation of the PCofE in 1929), continue as congregations of the URC and university chaplaincies of the Church of Scotland . In recent years a number of smaller denominations adopting Presbyterian forms of church government have organised in England, including the International Presbyterian Church planted by evangelical theologian Francis Schaeffer of

400-457: A divertor volume, the island divertor , for managing power and particle exhaust. The island divertor has shown success in accessing and stabilizing detached scenarios and has demonstrated reliable heat flux and detachment control with hydrogen gas injection, and impurity seeding in the W7-X stellarator. The magnetic island chain in the plasma edge can control plasma fueling. Despite some challenges,

480-624: A full-length Old English style surplice which resembles the Celtic alb, an ungirdled liturgical tunic of the old Gallican Rite ), which some, particularly those identifying with the Liturgical Renewal Movement, hold to be more ancient and representative of a more ecumenical past. Presbyterians traditionally have held the Worship position that there are only two sacraments : Some early Presbyterians, which were influenced by

560-618: A major split, the Salter's Hall controversy , occurred; with the majority siding with nontrinitarian views. Thomas Bradbury published several sermons bearing on the controversy, and in 1719, "An answer to the reproaches cast on the dissenting ministers who subscribed their belief of the Eternal Trinity." By the 18th century many English Presbyterian congregations had become Unitarian in doctrine. A number of new Presbyterian Churches were founded by Scottish immigrants to England in

640-474: A revolt against modernist doctrine in his Christianity and Liberalism (1923) that critiqued theological modernism. He argued that modernism and liberal theology was a false religion, a pretender that cloaks itself in Christian language – "Liberalism". This religion is a marriage of naturalism, humanism, secularism, and sentimentalism all rolled into one. Presbyterian denominations that trace their heritage to

720-453: A striking facade clad in limestone and punctuated by large windows, alongside abstract stained-glass windows. Both of these were designed by famed architect Harold E. Wagoner . Usually a Presbyterian church will not have statues of saints, nor the ornate altar more typical of a Catholic church. Instead, there is a "communion table", usually on the same level as the congregation, and sometimes elevated similar to an altar, however surrounded by

800-561: A table in the chancel. By using the "empty" cross, or cross of the Westminster/Celtic cross, Presbyterians emphasize the resurrection and that Christ is not continually dying, but died once and is alive for all eternity. Quite a few Presbyterian church buildings are decorated with a cross, that has a circle around the center, or Celtic cross. This not only emphasizes the resurrection, but also acknowledges historical aspects of Presbyterianism. A baptismal font will be located either at

880-419: A year of study at St John's College, Cambridge , he was influenced by Arthur Eddington and the young Subrahmanyan Chandrasekhar . Returning to the U.S., Spitzer received his Ph.D. in physics from Princeton University in 1938 after completing a doctoral dissertation, titled "The spectra of late supergiant stars ", under the direction of Henry Norris Russell . In 1965, Spitzer and Donald Morton became

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960-776: Is also a congregation in the heart of London's financial district called London City Presbyterian Church that is affiliated with the Free Church of Scotland. The Free Presbyterian Church of Scotland also have a congregation in London, as do the Free Presbyterian Church of Ulster - along with five others in England. In 1972, the Presbyterian Church of England (PCofE) united with the Congregational Church in England and Wales to form

1040-662: Is an Italian Protestant denomination. The church was founded in the 12th century, and centuries later, after the Protestant Reformation, it adhered to Calvinist theology and became the Italian branch of the Presbyterian churches. As such, the church is a member of the World Communion of Reformed Churches. Even before Presbyterianism spread with immigrants abroad from Scotland, there were divisions in

1120-463: Is based on a more subtle point: In confessional churches, theology is not solely an individual matter. While individuals are encouraged to understand Scripture, and may challenge the current institutional understanding, theology is carried out by the community as a whole. It is this community understanding of theology that is expressed in confessions. However, there has arisen a spectrum of approaches to confessionalism . The manner of subscription , or

1200-401: Is expected that future fusion power plants will generate divertor heat loads greatly exceeding the engineering limits of the plasma-facing components . The search for mitigation strategies to the divertor power exhaust challenge is a major topic in nuclear fusion research. A tokamak featuring a divertor is known as a divertor tokamak or divertor configuration tokamak. In this configuration,

1280-618: Is more of a faint image, with a more modern design. John Knox (1505–1572), a Scot who had spent time studying under Calvin in Geneva, returned to Scotland and urged his countrymen to reform the Church in line with Calvinist doctrines. After a period of religious convulsion and political conflict culminating in a victory for the Protestant party at the Siege of Leith the authority of

1360-425: Is neurobiologist Nicholas C. Spitzer , who is currently the professor and vice chair in neurobiology at UC San Diego . Awards Named after him Presbyterian Christianity • Protestantism Presbyterianism is a Reformed (Calvinist) Protestant tradition named for its form of church government by representative assemblies of elders . Though other Reformed churches are structurally similar,

1440-577: Is not one fixed "Presbyterian" worship style. Although there are set services for the Lord's Day in keeping with first-day Sabbatarianism , one can find a service to be evangelical and even revivalist in tone (especially in some conservative denominations), or strongly liturgical, approximating the practices of Lutheranism or more of Anglicanism , or semi-formal, allowing for a balance of hymns, preaching, and congregational participation (favored by many American Presbyterians). Most Presbyterian churches follow

1520-732: The Apostles' Creed ), 16th-century Reformed confessions (the Scots Confession , the Heidelberg Catechism , the Second Helvetic Confession ), and 20th century documents ( The Theological Declaration of Barmen , Confession of 1967 and A Brief Statement of Faith ). The Presbyterian Church in Canada developed the confessional document Living Faith (1984) and retains it as a subordinate standard of

1600-717: The Archbishop of Canterbury , attempted to force the Church of Scotland to use the Book of Common Prayer . What resulted was an armed insurrection, with many Scots signing the Solemn League and Covenant . The Covenanters would serve as the government of Scotland for nearly a decade, and would also send military support to the Parliamentarians during the English Civil War . Following the restoration of

1680-695: The Arminianism of the Wesleyan Methodists. They broke off from the Church of England in 1811, ordaining their own ministers. They were originally known as the Calvinist Methodist connexion and in the 1920s it became alternatively known as the Presbyterian Church of Wales. Presbyterianism ( Irish : Preispitéireachas , Ulster Scots : Prisbytairinism ) is the largest Protestant denomination in Northern Ireland and

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1760-563: The Catholic Church was abolished in favour of Reformation by the legislation of the Scottish Reformation Parliament in 1560. The Church was eventually organised by Andrew Melville along Presbyterian lines to become the national Church of Scotland . King James VI and I moved the Church of Scotland towards an episcopal form of government, and in 1637, James' successor, Charles I and William Laud ,

1840-676: The Culdees practiced Christian monasticism , a key feature of Celtic Christianity in the region, with a presbyter exercising "authority within the institution, while the different monastic institutions were independent of one another." The Church in Scotland kept the Christian feast of Easter at a date different from the See of Rome and its monks used a unique style of tonsure . The Synod of Whitby in 664, however, ended these distinctions as it ruled "that Easter would be celebrated according to

1920-641: The Kingdom of Great Britain . In fact, most Presbyterians in England have a Scottish connection. The Presbyterian denomination was also taken to North America , mostly by Scots and Scots-Irish immigrants. Scotland's Presbyterian denominations hold to the Reformed theology of John Calvin and his immediate successors, although there is a range of theological views within contemporary Presbyterianism. Local congregations of churches that use Presbyterian polity are governed by sessions made up of representatives of

2000-591: The L'Abri Fellowship in the 1970s - now with fifteen English-speaking congregations in England, and 6 Korean-speaking congregations. There is also the Evangelical Presbyterian Church in England and Wales founded in the North of England in the late 1980s. In Wales , Presbyterianism is represented by the Presbyterian Church of Wales , which was originally composed largely of Calvinistic Methodists who accepted Calvinist theology rather than

2080-754: The Larger and Shorter catechisms, which are approved for use in instruction. Many Presbyterian denominations, especially in North America, have adopted all of the Westminster Standards as their standard of doctrine which is subordinate to the Bible. These documents are Calvinistic in their doctrinal orientation. The Presbyterian Church in Canada retains the Westminster Confession of Faith in its original form, while admitting

2160-648: The Parliament of Scotland adopted the Scots Confession as the creed of the Scottish Kingdom. In December 1560, the First Book of Discipline was published, outlining important doctrinal issues but also establishing regulations for church government, including the creation of ten ecclesiastical districts with appointed superintendents which later became known as presbyteries . In time,

2240-574: The Reformed Presbyterian Church of Ireland and the Evangelical Presbyterian Church . There is a Church of Scotland (Presbyterian) in central Paris: The Scots Kirk , which is English-speaking, and is attended by many nationalities. It maintains close links with the Church of Scotland in Scotland itself, as well as with the Reformed Church of France . The Waldensian Evangelical Church (Chiesa Evangelica Valdese, CEV)

2320-483: The Reformed Presbyterian Church of Scotland , the ' Didasko Presbytery' , the International Presbyterian Church and two congregations of the Free Presbyterian Church of Ulster . Combined, they have over 1500 congregations in Scotland. Within Scotland the term ' kirk ' is usually used to refer to a local Presbyterian church. Informally, the term 'The Kirk' refers to the Church of Scotland. Some of

2400-559: The Reformed Presbyterians , would practice a cappella exclusive psalmody , as well as eschew the celebration of holy days. Among the paleo-orthodox and emerging church movements in Protestant and evangelical churches, in which some Presbyterians are involved, clergy are moving away from the traditional black Geneva gown to such vestments as the alb and chasuble , but also cassock and surplice (typically

2480-695: The United Reformed Church (URC). Among the congregations the PCofE brought to the URC were Tunley (Lancashire), Aston Tirrold (Oxfordshire) and John Knox Presbyterian Church, Stepney, London (now part of Stepney Meeting House URC) – these are among the sole survivors today of the English Presbyterian churches of the 17th century. The URC also has a presence in Scotland, mostly of former Congregationalist Churches. Two former Presbyterian congregations, St Columba's, Cambridge (founded in 1879), and St Columba's, Oxford (founded as

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2560-556: The episcopal hierarchy of the Elizabethan Church led to his deprivation of his post by Archbishop John Whitgift and his emigration abroad. Between 1645 and 1648, a series of ordinances of the Long Parliament established Presbyterianism as the polity of the Church of England . Presbyterian government was established in London and Lancashire and in a few other places in England, although Presbyterian hostility to

2640-485: The execution of Charles I and the establishment of the republican Commonwealth of England meant that Parliament never enforced the Presbyterian system in England. The Restoration of the monarchy in 1660 brought the return of Episcopal church government in England (and in Scotland for a short time); but the Presbyterian church in England continued in Non-Conformity, outside of the established church. In 1719

2720-514: The history of Christianity , but the beginning of Presbyterianism as a distinct movement occurred during the 16th century Protestant Reformation . As the Catholic Church resisted the Reformers, several different theological movements splintered from the Church and bore different denominations. Presbyterianism was especially influenced by the French theologian John Calvin , who is credited with

2800-638: The 1930s and 1940s, he was among the first to recognize star formation as an ongoing contemporary process. His monographs, "Diffuse Matter in Space" (1968) and "Physical Processes in the Interstellar Medium" (1978) consolidated decades of work, and themselves became the standard texts for some decades more. Spitzer was the founding director of Project Matterhorn , Princeton University's pioneering program in controlled thermonuclear research, renamed in 1961 as Princeton Plasma Physics Laboratory . He

2880-553: The 19th century and later. Following the 'Disruption' in 1843 many of those linked to the Church of Scotland eventually joined what became the Presbyterian Church of England in 1876. Some, such as Crown Court (Covent Garden, London), St Andrew's (Stepney, London) and Swallow Street (London), did not join the English denomination, which is why there are Church of Scotland congregations in England such as those at Crown Court , and St Columba's , Pont Street (Knightsbridge) in London. There

2960-620: The 20th century saw a greater embrace of modern architectural styles, particularly the modernist movement characterized by clean lines, geometric shapes, and open floor plans. Prominent examples include Coral Ridge Presbyterian Church in Fort Lauderdale, Florida, with expansive, light-filled sanctuary and angular design elements. Similarly, the National Presbyterian Church in Washington, D.C., features

3040-622: The 20th century, some Presbyterians played an important role in the ecumenical movement , including the World Council of Churches . Many Presbyterian denominations have found ways of working together with other Reformed denominations and Christians of other traditions, especially in the World Communion of Reformed Churches . Some Presbyterian churches have entered into unions with other churches, such as Congregationalists , Lutherans , Anglicans , and Methodists . Presbyterians in

3120-484: The Bible, yet directing particularities in the standardisation and translation of the Bible – in Presbyterian churches. Presbyterians place great importance upon education and lifelong learning, tempered with the belief that no human action can affect salvation . Continuous study of the scriptures, theological writings, and understanding and interpretation of church doctrine are embodied in several statements of faith and catechisms formally adopted by various branches of

3200-625: The British Isles usually organise their church services inspired by the principles in the Directory of Public Worship , developed by the Westminster Assembly in the 1640s. This directory documented Reformed worship practices and theology adopted and developed over the preceding century by British Puritans , initially guided by John Calvin and John Knox. It was enacted as law by the Parliament of Scotland , and became one of

3280-837: The Church of Scotland's form of government. However, legislation by the United Kingdom parliament allowing patronage led to splits in the Church. In 1733, a group of ministers seceded from the Church of Scotland to form the Associate Presbytery, another group seceded in 1761 to form the Relief Church and the Disruption of 1843 led to the formation of the Free Church of Scotland . Further splits took place, especially over theological issues, but most Presbyterians in Scotland were reunited by 1929 union of

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3360-579: The Presbyterian churches are in Calvinism . Many branches of Presbyterianism are remnants of previous splits from larger groups. Some of the splits have been due to doctrinal controversy, while some have been caused by disagreement concerning the degree to which those ordained to church office should be required to agree with the Westminster Confession of Faith , which historically serves as an important confessional document – second only to

3440-570: The Roman date, not the Celtic date." Although Roman influence came to dominate the Church in Scotland, certain Celtic influences remained in the Scottish Church, such as "the singing of metrical psalms , many of them set to old Celtic Christianity Scottish traditional and folk tunes", which later became a "distinctive part of Scottish Presbyterian worship". Presbyterian history is part of

3520-492: The Scots Confession would be supplanted by the Westminster Confession of Faith , and the larger and shorter catechisms , which were formulated by the Westminster Assembly between 1643 and 1649. Presbyterians distinguish themselves from other denominations by doctrine , institutional organisation (or "church order") and worship , often using a "Book of Order" to regulate common practice and order. The origins of

3600-615: The United States came largely from Scottish , Scots-Irish immigrants , and also from New England communities that were originally Congregational but changed because of an agreed-upon Plan of Union of 1801 for frontier areas. Presbyterian tradition, particularly that of the Church of Scotland , traces its early roots to the Christian Church founded by Saint Columba , through the 6th century Hiberno-Scottish mission . Tracing their apostolic origin to Saint John ,

3680-496: The W7-X and LHD have shown promising results and provide valuable insights for future improvements in shape and performance. Furthermore, the advent of non-resonant divertors offers an exciting path forward for quasi-symmetric stellarators and other configurations not optimized for minimizing plasma currents. This plasma physics –related article is a stub . You can help Misplaced Pages by expanding it . Lyman Spitzer Lyman Spitzer Jr. (June 26, 1914 – March 31, 1997)

3760-403: The chancel. There may be a rail between the communion table and the chancel behind it, which may contain a more decorative altar-type table, choir loft, or choir stalls, lectern and clergy area. The altar is called the communion table, and the altar area is called the chancel by Presbyterians. In Presbyterian, and in Reformed churches, there may be an altar cross, either on the communion table or on

3840-567: The church, often referred to as " subordinate standards ". Presbyterian government is by councils (still known as courts in some countries, as boards in others) of elders. Teaching and ruling elders are ordained and convene in the lowest council known as a session or consistory responsible for the discipline, nurture, and mission of the local congregation . Teaching elders (pastors or ministers) have responsibility for teaching, worship, and performing sacraments. Pastors or ministers are called by individual congregations. A congregation issues

3920-437: The confined plasma volume and the field lines ending on the divertor plate. However, the compatibility of the Helical Divertor with stellarators optimized for neoclassical transport remains uncertain. The non-resonant divertor provides an alternative design for optimized stellarators with significant bootstrap currents. This approach leverages sharp "ridges" on the plasma boundary to channel flux. The bootstrap currents modify

4000-465: The congregation ( elders ), a conciliar approach as with other levels of decision-making ( presbytery , synod , and general assembly ). There are roughly 75 million Presbyterians in the world. Presbyterianism's roots lie in the Reformation of the 16th century. John Calvin's Republic of Geneva was particularly influential. Most Reformed churches that trace their history to Scotland are either presbyterian or congregationalist in government. In

4080-470: The degree to which the official standards establish the actual doctrine of the church, is a practical matter. That is, the decisions rendered in ordination and in the courts of the church largely determine what the church means, representing the whole, by its adherence to the doctrinal standard. Some Presbyterian traditions adopt only the Westminster Confession of Faith as the doctrinal standard to which teaching elders are required to subscribe, in contrast to

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4160-417: The denomination. It is confessional in format, yet like the Westminster Confession, draws attention back to original Bible text. Presbyterians in Ireland who rejected Calvinism and the Westminster Confessions formed the Non-subscribing Presbyterian Church of Ireland . John Gresham Machen, the prominent Presbyterian theologian and Professor of New Testament at Princeton Seminary between 1906 and 1929, led

4240-465: The development of Reformed theology , and the work of John Knox , a Scottish Catholic Priest who studied with Calvin in Geneva and brought back Reformed teachings to Scotland. An important influence on the formation of presbyterianism in Britain also came from John a Lasco , a Polish reformer, the founder of a Stranger's Church in London, based on the Geneva models. The Presbyterian church traces its ancestry back primarily to Scotland. In August 1560,

4320-473: The entrance or near the chancel area. Presbyterian architecture generally makes significant use of symbolism. One may also find decorative and ornate stained glass windows depicting scenes from the Bible. Some Presbyterian churches will also have ornate statues of Christ or graven scenes from the Last Supper located behind the chancel. St. Giles' Cathedral in Scotland has a crucifix next to an ornate elevated communion table that hangs alongside. The image of Christ

4400-425: The established Church of Scotland and the United Free Church of Scotland . There are now ten Presbyterian denominations in Scotland today. These are, listed by number of congregations within Scotland: the Church of Scotland , the Free Church of Scotland , the United Free Church of Scotland , the Free Presbyterian Church of Scotland , the Free Church of Scotland (Continuing) , the Associated Presbyterian Church ,

4480-415: The first Presbytery in Philadelphia was established. In time, the presbytery would be joined by two more to form a synod (1717) and would evolve into the Presbyterian Church in the United States of America in 1789. The nation's largest Presbyterian denomination, the Presbyterian Church (U.S.A.) – PC (USA) – can trace its heritage back to the original PCUSA, as can the Presbyterian Church in America (PCA),

4560-411: The first to climb Mount Thor 1,675 m (5,495 ft), located in Auyuittuq National Park , on Baffin Island, Nunavut , Canada. As a member of the American Alpine Club , Spitzer established the "Lyman Spitzer Cutting Edge Climbing Award" (Now called the "Cutting Edge Grant") which gives $ 12,000 to several mountain climbing expeditions annually. Spitzer's brief time as a faculty member at Yale

4640-477: The foundational documents of Presbyterian church legislation elsewhere. Historically, the driving principle in the development of the standards of Presbyterian worship is the Regulative principle of worship , which specifies that (in worship), what is not commanded is forbidden. Over subsequent centuries, many Presbyterian churches modified these prescriptions by introducing hymnody, instrumental accompaniment, and ceremonial vestments into worship. However, there

4720-443: The full congregation. Since the 20th century, most denominations allow women to be teaching or ruling elders. Above the sessions exist presbyteries, which have area responsibilities. These are composed of teaching elders and ruling elders from each of the constituent congregations. The presbytery sends representatives to a broader regional or national assembly, generally known as the General Assembly , although an intermediate level of

4800-412: The historical period in which it was written should be understood when it is read. The Westminster Confession is "The principal subordinate standard of the Church of Scotland " but "with due regard to liberty of opinion in points which do not enter into the substance of the Faith" (V). This formulation represents many years of struggle over the extent to which the confession reflects the Word of God and

4880-419: The island divertor concept has demonstrated great potential for managing power and particle exhaust in fusion reactors, and further research could lead to more efficient and reliable operation in the future. The helical divertor , as employed in the Large Helical Device (LHD), utilizes large helical coils to create a diverting field. This design permits adjustment of the stochastic layer size, situated between

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4960-423: The larger Presbyterian family. Some later rejoined only to separate again. In what some interpret as rueful self-reproach, some Presbyterians refer to the divided Presbyterian churches as the "Split Ps". Presbyterianism first officially arrived in Colonial America in 1644 with the establishment of Christ's First Presbyterian Church in Hempstead, New York. The Church was organized by the Rev. Richard Denton. In 1703

5040-512: The mainline Presbyterians. These were more of the wave of Presbyterians that were influenced by the Puritans. In the late 19th century a gradual shift began to occur. Prosperous congregations built imposing churches, such as Fourth Presbyterian Church of Chicago , Brick Presbyterian Church in New York City, Shadyside Presbyterian Church in Pennsylvania, St Stephen Presbyterian in Fort Worth, Texas, and many others. While Presbyterian churches historically reflected prevailing architectural trends,

5120-447: The monarchy in 1660, Charles II , despite the initial support that he received from the Covenanters, reinstated an episcopal form of government on the church. However, with the Glorious Revolution of 1688 the Church of Scotland was unequivocally recognised as a Presbyterian institution by the monarch due to Scottish Presbyterian support for the aforementioned revolution and the Acts of Union 1707 between Scotland and England guaranteed

5200-462: The nurture and leadership of the congregation. Often, especially in larger congregations, the elders delegate the practicalities of buildings, finance, and temporal ministry to the needy in the congregation to a distinct group of officers (sometimes called deacons, which are ordained in some denominations). This group may variously be known as a "Deacon Board", "Board of Deacons" "Diaconate", or "Deacons' Court". These are sometimes known as "presbyters" to

5280-442: The particles escape through a magnetic "gap" ( separatrix ), which allows the energy absorbing part of the divertor to be placed outside the plasma. The divertor configuration also makes it easier to obtain a more stable H-mode of operation. The plasma facing material in the divertor faces significantly different stresses compared to the majority of the first wall . In stellarators , low-order magnetic islands can be used to form

5360-413: The puritan movement, were careful to distinguish between the "church", which referred to the members , and the "meeting house", which was the building in which the church met. (Quakers still insist upon this distinction.) Until the late 19th century, very few Presbyterians ever referred to their buildings as "churches". Presbyterians believed that meeting-houses (now called churches) are buildings to support

5440-423: The second largest on the island of Ireland (after the Anglican Church of Ireland ), and was brought by Scottish plantation settlers to Ulster who had been strongly encouraged to emigrate by James VI of Scotland, also James I of Ireland and England . An estimated 100,000 Scottish Presbyterians moved to the northern counties of Ireland between 1607 and the Battle of the Boyne in 1690. The Presbytery of Ulster

5520-402: The shape, not the location, of these ridges, providing an effective channeling mechanism. This design, although promising, has not been experimentally tested yet. Given the complexity of the design of stellarator divertors, compared to their two-dimensional tokamak counterparts, a thorough understanding of their performance is crucial in stellarator optimization. The experiments with divertors in

5600-451: The step skipped is the Synod. The Church of Scotland abolished the Synod in 1993. Presbyterian governance is practiced by Presbyterian denominations and also by many other Reformed churches . Presbyterianism is historically a confessional tradition. This has two implications. The obvious one is that confessional churches express their faith in the form of "confessions of faith", which have some level of authoritative status. However this

5680-474: The struggle of conscience of those who came to believe it did not fully do so (e.g. William Robertson Smith ). Some Presbyterian churches, such as the Free Church of Scotland , have no such " conscience clause". The Presbyterian Church (U.S.A.) has adopted the Book of Confessions , which reflects the inclusion of other Reformed confessions in addition to the Westminster Standards. These other documents include ancient creedal statements (the Nicene Creed ,

5760-420: The traditional liturgical year and observe the traditional holidays, holy seasons, such as Advent , Christmas, Ash Wednesday , Holy Week , Easter, Pentecost , etc. They also make use of the appropriate seasonal liturgical colors , etc. Many incorporate ancient liturgical prayers and responses into the communion services and follow a daily, seasonal, and festival lectionary. Other Presbyterians, however, such as

5840-577: The values and ideals espoused in Scottish Presbyterian denominations can be reflected in this reference in a book from Norman Drummond, chaplain to the Queen in Scotland. Chart of splits and mergers of the Scottish Presbyterian churches In England, Presbyterianism was established in secret in 1592. Thomas Cartwright is thought to be the first Presbyterian in England. Cartwright's controversial lectures at Cambridge University condemning

5920-541: The word Presbyterian is applied to churches that trace their roots to the Church of Scotland or to English Dissenter groups that formed during the English Civil War . Presbyterian theology typically emphasizes the sovereignty of God , the authority of the Scriptures , and the necessity of grace through faith in Christ. Scotland ensured Presbyterian church government in the 1707 Acts of Union , which created

6000-406: The worship of God. The decor in some instances was austere so as not to detract from worship. Early Presbyterian meeting-houses were extremely plain. No stained glass, no elaborate furnishings, and no images were to be found in the meeting-house. The pulpit, often raised so as only to be accessible by a staircase, was the centerpiece of the building. But these were not the standard characteristics of

6080-428: Was an American theoretical physicist , astronomer and mountaineer. As a scientist, he carried out research into star formation and plasma physics and in 1946 conceived the idea of telescopes operating in outer space . Spitzer invented the stellarator plasma device and is the namesake of NASA 's Spitzer Space Telescope . As a mountaineer, he made the first ascent of Mount Thor , with Donald C. Morton. Spitzer

6160-563: Was an early proponent of space optical astronomy in general, and in particular of the project that became Hubble Space Telescope . In 1981, Spitzer became a founding member of the World Cultural Council . Spitzer died suddenly on March 31, 1997, after completing a regular day of work at Princeton University . He was buried at Princeton Cemetery and was survived by wife Doreen Canaday Spitzer (1914-2010), four children, and ten grandchildren. Among Spitzer's four children

6240-466: Was born to a Presbyterian family in Toledo, Ohio, the son of Lyman Spitzer Sr. and Blanche Carey (née Brumback). Through his paternal grandmother, he was related to inventor Eli Whitney . Spitzer graduated from Scott High School . He then attended Phillips Academy from 1929 to 1931 and went on to Yale College , where he graduated Phi Beta Kappa in 1935 and was a member of Skull and Bones . During

6320-561: Was formed in 1642 separately from the established Anglican Church. Presbyterians, along with Catholics in Ulster and the rest of Ireland, suffered under the discriminatory Penal Laws until they were revoked in the early 19th century. Presbyterianism is represented in Ireland by the Presbyterian Church in Ireland , the Non-subscribing Presbyterian Church of Ireland , the Free Presbyterian Church of Ulster ,

6400-482: Was interrupted by his wartime work on the development of sonar . In 1947, at the age of 33, he succeeded Russell as director of Princeton University Observatory, an institution that, virtually jointly with his contemporary and friend Martin Schwarzschild , he continued to head until 1979. Spitzer's research centered on the interstellar medium , to which he brought a deep understanding of plasma physics. In

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