Spectroscopy is the study of the interaction between matter and electromagnetic radiation. Spectroscopy originated through the study of visible light dispersed according to its wavelength, by a prism; the concept was expanded to include any interaction with radiative energy as a function of its wavelength or frequency, predominantly in the electromagnetic spectrum, though matter waves and acoustic waves can be considered forms of radiative energy. Spectroscopic data are represented by an emission spectrum, a plot of the response of interest as a function of wavelength or frequency. Spectroscopy in the electromagnetic spectrum, is a fundamental exploratory tool in the fields of physics and astronomy, allowing the composition, physical structure and electronic structure of matter to be investigated at atomic scale, molecular scale, macro scale, over astronomical distances. Important applications arise from biomedical spectroscopy in the areas of tissue analysis and medical imaging. Spectroscopy and spectrography are terms used to refer to the measurement of radiation intensity as a function of wavelength and are used to describe experimental spectroscopic methods.
Spectral measurement devices are referred to as spectrometers, spectrophotometers, spectrographs or spectral analyzers. Daily observations of color can be related to spectroscopy. Neon lighting is a direct application of atomic spectroscopy. Neon and other noble gases have characteristic emission frequencies. Neon lamps use collision of electrons with the gas to excite these emissions. Inks and paints include chemical compounds selected for their spectral characteristics in order to generate specific colors and hues. A encountered molecular spectrum is that of nitrogen dioxide. Gaseous nitrogen dioxide has a characteristic red absorption feature, this gives air polluted with nitrogen dioxide a reddish-brown color. Rayleigh scattering is a spectroscopic scattering phenomenon. Spectroscopic studies were central to the development of quantum mechanics and included Max Planck's explanation of blackbody radiation, Albert Einstein's explanation of the photoelectric effect and Niels Bohr's explanation of atomic structure and spectra.
Spectroscopy is used in physical and analytical chemistry because atoms and molecules have unique spectra. As a result, these spectra can be used to detect and quantify information about the atoms and molecules. Spectroscopy is used in astronomy and remote sensing on Earth. Most research telescopes have spectrographs; the measured spectra are used to determine the chemical composition and physical properties of astronomical objects. One of the central concepts in spectroscopy is its corresponding resonant frequency. Resonances were first characterized in mechanical systems such as pendulums. Mechanical systems that vibrate or oscillate will experience large amplitude oscillations when they are driven at their resonant frequency. A plot of amplitude vs. excitation frequency will have a peak centered at the resonance frequency. This plot is one type of spectrum, with the peak referred to as a spectral line, most spectral lines have a similar appearance. In quantum mechanical systems, the analogous resonance is a coupling of two quantum mechanical stationary states of one system, such as an atom, via an oscillatory source of energy such as a photon.
The coupling of the two states is strongest when the energy of the source matches the energy difference between the two states. The energy of a photon is related to its frequency by E = h ν where h is Planck's constant, so a spectrum of the system response vs. photon frequency will peak at the resonant frequency or energy. Particles such as electrons and neutrons have a comparable relationship, the de Broglie relations, between their kinetic energy and their wavelength and frequency and therefore can excite resonant interactions. Spectra of atoms and molecules consist of a series of spectral lines, each one representing a resonance between two different quantum states; the explanation of these series, the spectral patterns associated with them, were one of the experimental enigmas that drove the development and acceptance of quantum mechanics. The hydrogen spectral series in particular was first explained by the Rutherford-Bohr quantum model of the hydrogen atom. In some cases spectral lines are well separated and distinguishable, but spectral lines can overlap and appear to be a single transition if the density of energy states is high enough.
Named series of lines include the principal, sharp and fundamental series. Spectroscopy is a sufficiently broad field that many sub-disciplines exist, each with numerous implementations of specific spectroscopic techniques; the various implementations and techniques can be classified in several ways. The types of spectroscopy are distinguished by the type of radiative energy involved in the interaction. In many applications, the spectrum is determined by measuring changes in the intensity or frequency of this energy; the types of radiative energy studied include: Electromagnetic radiation was the first source of energy used for spectroscopic studies. Techniques that employ electromagnetic radiation are classified by the wavelength region of the spectrum and include microwave, terahe
A secondary school is both an organization that provides secondary education and the building where this takes place. Some secondary schools can provide both lower secondary education and upper secondary education, but these can be provided in separate schools, as in the American middle and high school system. Secondary schools follow on from primary schools and lead into vocational and tertiary education. Attendance is compulsory in most countries for students between the ages of 11 and 16; the organisations and terminology are more or less unique in each country. Within the English speaking world, there are three used systems to describe the age of the child; the first is the'equivalent ages' countries that base their education systems on the'English model' use one of two methods to identify the year group, while countries that base their systems on the'American K-12 model' refer to their year groups as'grades'. This terminology extends into research literature. Below is a convenient comparison.
The building needs to accommodate: Curriculum content Teaching methods Costs Education within the political framework Use of school building Constraints imposed by the site Design philosophyEach country will have a different education system and priorities. Schools need to accommodate students, storage and electrical systems, support staff, ancillary staff and administration; the number of rooms required can be determined from the predicted roll of the school and the area needed. According to standards used in the United Kingdom, a general classroom for 30 students needs to be 55 m², or more generously 62 m². A general art room for 30 students needs to be 83 m ². A drama studio or a specialist science laboratory for 30 needs to be 90 m². Examples are given on, and 1,850 place secondary school. The building providing the education has to fulfil the needs of: The students, the teachers, the non-teaching support staff, the administrators and the community, it has to meet general government building guidelines, health requirements, minimal functional requirements for classrooms and showers, electricity and services and storage of textbooks and basic teaching aids.
An optimum secondary school will meet the minimum conditions and will have: adequately sized classrooms. Government accountants having read the advice publish minimum guidelines on schools; these enable environmental establishing building costs. Future design plans are audited to ensure. Government ministries continue to press for cost standards to be reduced; the UK government published this downwardly revised space formula in 2014. It said the floor area should be 1050m² + 6.3m²/pupil place for 11- to 16-year-olds + 7m²/pupil place for post-16s. The external finishes were to be downgraded to meet a build cost of £1113/m². A secondary school locally may be called high senior high school. In some countries there are two phases to secondary education and, here the junior high school, intermediate school, lower secondary school, or middle school occurs between the primary school and high school. Names for secondary schools by countryArgentina: secundaria or polimodal, escuela secundaria Australia: high school, secondary college Austria: Gymnasium, Hauptschule, Höhere Bundeslehranstalt, Höhere Technische Lehranstalt Azerbaijan: orta məktəb Bahamas, The: junior high, senior high Belgium: lagere school/école primaire, secundair onderwijs/école secondaire, humaniora/humanités Bolivia: educación primaria superior and educación secundaria and Herzegovina: srednja škola, gimnazija Brazil: ensino médio, segundo grau Brunei: sekolah menengah, a few maktab Bulgaria: cредно образование Canada: High school, junior high or middle school, secondary school, école secondaire, collegiate institute, polyvalente Chile: enseñanza media China: zhong xue, consisting of chu zhong from grades 7 to 9 and gao zhong from grades 10 to 12 Colombia: bachillerato, segunda enseñanza Croatia: srednja škola, gimnazija Cyprus: Γυμνάσιο, Ενιαίο Λύκειο Czech Republic: střední škola, gymnázium, střední odborné učiliště Denmark: gymnasium Dominican Republic: nivel medio, bachillerato Egypt: Thanawya Amma, Estonia: upper secondary school, Lyceum Finland: lukio gymnasium France: collège, lycée Germany: Gymnasium, Realschule, Fachoberschule Greece: Γυμνάσιο, Γενικό Λύκειο, Ενιαίο Λύκειο, Hong Kong: Secondary school Hungary: gimnázium, k
University of Toronto
The University of Toronto is a public research university in Toronto, Canada, located on the grounds that surround Queen's Park. It was founded by royal charter in 1827 as King's College, the first institution of higher learning in the colony of Upper Canada. Controlled by the Church of England, the university assumed the present name in 1850 upon becoming a secular institution; as a collegiate university, it comprises eleven colleges, which differ in character and history, each with substantial autonomy on financial and institutional affairs. It has two satellite campuses in Mississauga; the university is ranked as the best Canadian university, according to various major publications. Academically, the University of Toronto is noted for influential movements and curricula in literary criticism and communication theory, known collectively as the Toronto School; the university was the birthplace of insulin and stem cell research, was the site of the first practical electron microscope, the development of deep learning, multi-touch technology, the identification of the first black hole Cygnus X-1, the development of the theory of NP-completeness.
By a significant margin, it receives the most annual scientific research funding of any Canadian university. It is one of two members of the Association of American Universities outside the United States, the other being McGill University in Montreal, Canada; the Varsity Blues are the athletic teams that represent the university in intercollegiate league matches, with long and storied ties to gridiron football and ice hockey. The earliest recorded college football game was played in the University of Toronto's University College in the 1860s; the university's Hart House is an early example of the North American student centre serving cultural and recreational interests within its large Gothic-revival complex. The University of Toronto has educated three Governors General of Canada, four Prime Ministers of Canada, four foreign leaders, fourteen Justices of the Supreme Court; as of March 2019, ten Nobel laureates, five Turing Award winners, 94 Rhodes Scholars, one Fields Medalist have been affiliated with the university.
The founding of a colonial college had long been the desire of John Graves Simcoe, the first Lieutenant-Governor of Upper Canada. As an Oxford-educated military commander who had fought in the American Revolutionary War, Simcoe believed a college was needed to counter the spread of republicanism from the United States; the Upper Canada Executive Committee recommended in 1798 that a college be established in York, the colonial capital. On March 15, 1827, a royal charter was formally issued by King George IV, proclaiming "from this time one College, with the style and privileges of a University... for the education of youth in the principles of the Christian Religion, for their instruction in the various branches of Science and Literature... to continue for to be called King's College." The granting of the charter was the result of intense lobbying by John Strachan, the influential Anglican Bishop of Toronto who took office as the college's first president. The original three-storey Greek Revival school building was built on the present site of Queen's Park.
Under Strachan's stewardship, King's College was a religious institution aligned with the Church of England and the British colonial elite, known as the Family Compact. Reformist politicians opposed the clergy's control over colonial institutions and fought to have the college secularized. In 1849, after a lengthy and heated debate, the newly elected responsible government of Upper Canada voted to rename King's College as the University of Toronto and severed the school's ties with the church. Having anticipated this decision, the enraged Strachan had resigned a year earlier to open Trinity College as a private Anglican seminary. University College was created as the nondenominational teaching branch of the University of Toronto. During the American Civil War, the threat of Union blockade on British North America prompted the creation of the University Rifle Corps, which saw battle in resisting the Fenian raids on the Niagara border in 1866; the Corps was part of the Reserve Militia lead by Professor Henry Croft.
Established in 1878, the School of Practical Science was precursor to the Faculty of Applied Science and Engineering, nicknamed Skule since its earliest days. While the Faculty of Medicine opened in 1843, medical teaching was conducted by proprietary schools from 1853 until 1887, when the faculty absorbed the Toronto School of Medicine. Meanwhile, the university continued to confer medical degrees; the university opened the Faculty of Law in 1887, followed by the Faculty of Dentistry in 1888, when the Royal College of Dental Surgeons became an affiliate. Women were first admitted to the university in 1884. A devastating fire in 1890 gutted the interior of University College and destroyed 33,000 volumes from the library, but the university restored the building and replenished its library within two years. Over the next two decades, a collegiate system took shape as the university arranged federation with several ecclesiastical colleges, including Strachan's Trinity College in 1904; the university operated the Royal Conservatory of Music from 1896 to 1991 and the Royal Ontario Museum from 1912 to 1968.
The University of Toronto Press was founded in 1901 as Canada's first academic publishing house. The Faculty of Forestry, founded in 1907 with Bernhard Fernow as dean, was Canada's first university faculty devoted to forest science. In 1910, the Faculty of Education opened its laboratory school, the University of Toro
Professor is an academic rank at universities and other post-secondary education and research institutions in most countries. Professor derives from Latin as a "person who professes" being an expert in arts or sciences, a teacher of the highest rank. In most systems of academic ranks the word "Professor" only refers to the most senior academic position, sometimes informally known as "full professor". In some countries or institutions, the word professor is used in titles of lower ranks such as associate professor and assistant professor; this colloquial usage would be considered incorrect among most other academic communities. However, the unqualified title Professor designated with a capital letter refers to a full professor in English language usage. Professors conduct original research and teach undergraduate and postgraduate courses in their fields of expertise. In universities with graduate schools, professors may mentor and supervise graduate students conducting research for a thesis or dissertation.
In many universities,'full professors' take on senior managerial roles, leading departments, research teams and institutes, filling roles such as president, principal or vice-chancellor. The role of professor may be more public facing than that of more junior staff, professors are expected to be national or international leaders in their field of expertise; the term "professor" was first used in the late 14th century to mean "one who teaches a branch of knowledge". The word comes "...from Old French professeur and directly from Latin professor'person who professes to be an expert in some art or science. As a title, "prefixed to a name, it dates from 1706"; the "hort form prof is recorded from 1838". The term "professor" is used with a different meaning: "ne professing religion; this canting use of the word comes down from the Elizabethan period, but is obsolete in England." A professor is an accomplished and recognized academic. In most Commonwealth nations, as well as northern Europe, the title professor is the highest academic rank at a university.
In the United States and Canada, the title of professor applies to most post-doctoral academics, so a larger percentage are thus designated. In these areas, professors are scholars with doctorate degrees or equivalent qualifications who teach in four-year colleges and universities. An emeritus professor is a title given to selected retired professors with whom the university wishes to continue to be associated due to their stature and ongoing research. Emeritus professors do not receive a salary, but they are given office or lab space, use of libraries, so on; the term professor is used in the titles assistant professor and associate professor, which are not considered professor-level positions in all European countries. In Australia, the title associate professor is used in place of the term reader as used in the United Kingdom and other Commonwealth countries. Beyond holding the proper academic title, universities in many countries give notable artists and foreign dignitaries the title honorary professor if these persons do not have the academic qualifications necessary for professorship and they do not take up professorial duties.
However, such "professors" do not undertake academic work for the granting institution. In general, the title of professor is used for academic positions rather than for those holding it on honorary basis. Professors are qualified experts in their field who perform some or all the following tasks: Managing teaching and publications in their departments. Other roles of professorial tasks depend on the institution, its legacy, protocols and time. For example, professors at research-oriented universities in North America and at European universities, are promoted on the basis of research achievements and external grant-raising success. Many colleges and universities and other institutions of higher learning throughout the world follow a similar hierarchical ranking structure amongst scholars in academia. A professor earns a base salary and a range of benefits. In addition, a professor who undertakes additional roles in their institution earns additional income; some professors earn additional income by moonlighting in other jobs, such as consulting, publishing academic or popular press books, giving speeches, or coaching executives.
Some fields give professors more opportun
Toronto is the provincial capital of Ontario and the most populous city in Canada, with a population of 2,731,571 in 2016. Current to 2016, the Toronto census metropolitan area, of which the majority is within the Greater Toronto Area, held a population of 5,928,040, making it Canada's most populous CMA. Toronto is the anchor of an urban agglomeration, known as the Golden Horseshoe in Southern Ontario, located on the northwestern shore of Lake Ontario. A global city, Toronto is a centre of business, finance and culture, is recognized as one of the most multicultural and cosmopolitan cities in the world. People have travelled through and inhabited the Toronto area, situated on a broad sloping plateau interspersed with rivers, deep ravines, urban forest, for more than 10,000 years. After the broadly disputed Toronto Purchase, when the Mississauga surrendered the area to the British Crown, the British established the town of York in 1793 and designated it as the capital of Upper Canada. During the War of 1812, the town was the site of the Battle of York and suffered heavy damage by United States troops.
York was incorporated in 1834 as the city of Toronto. It was designated as the capital of the province of Ontario in 1867 during Canadian Confederation; the city proper has since expanded past its original borders through both annexation and amalgamation to its current area of 630.2 km2. The diverse population of Toronto reflects its current and historical role as an important destination for immigrants to Canada. More than 50 percent of residents belong to a visible minority population group, over 200 distinct ethnic origins are represented among its inhabitants. While the majority of Torontonians speak English as their primary language, over 160 languages are spoken in the city. Toronto is a prominent centre for music, motion picture production, television production, is home to the headquarters of Canada's major national broadcast networks and media outlets, its varied cultural institutions, which include numerous museums and galleries and public events, entertainment districts, national historic sites, sports activities, attract over 25 million tourists each year.
Toronto is known for its many skyscrapers and high-rise buildings, in particular the tallest free-standing structure in the Western Hemisphere, the CN Tower. The city is home to the Toronto Stock Exchange, the headquarters of Canada's five largest banks, the headquarters of many large Canadian and multinational corporations, its economy is diversified with strengths in technology, financial services, life sciences, arts, business services, environmental innovation, food services, tourism. When Europeans first arrived at the site of present-day Toronto, the vicinity was inhabited by the Iroquois, who had displaced the Wyandot people, occupants of the region for centuries before c. 1500. The name Toronto is derived from the Iroquoian word tkaronto, meaning "place where trees stand in the water"; this refers to the northern end of what is now Lake Simcoe, where the Huron had planted tree saplings to corral fish. However, the word "Toronto", meaning "plenty" appears in a 1632 French lexicon of the Huron language, an Iroquoian language.
It appears on French maps referring to various locations, including Georgian Bay, Lake Simcoe, several rivers. A portage route from Lake Ontario to Lake Huron running through this point, known as the Toronto Carrying-Place Trail, led to widespread use of the name. In the 1660s, the Iroquois established two villages within what is today Toronto, Ganatsekwyagon on the banks of the Rouge River and Teiaiagon on the banks of the Humber River. By 1701, the Mississauga had displaced the Iroquois, who abandoned the Toronto area at the end of the Beaver Wars, with most returning to their base in present-day New York. French traders abandoned it in 1759 during the Seven Years' War; the British defeated the French and their indigenous allies in the war, the area became part of the British colony of Quebec in 1763. During the American Revolutionary War, an influx of British settlers came here as United Empire Loyalists fled for the British-controlled lands north of Lake Ontario; the Crown granted them land to compensate for their losses in the Thirteen Colonies.
The new province of Upper Canada was being needed a capital. In 1787, the British Lord Dorchester arranged for the Toronto Purchase with the Mississauga of the New Credit First Nation, thereby securing more than a quarter of a million acres of land in the Toronto area. Dorchester intended the location to be named Toronto. In 1793, Governor John Graves Simcoe established the town of York on the Toronto Purchase lands, naming it after Prince Frederick, Duke of York and Albany. Simcoe decided to move the Upper Canada capital from Newark to York, believing that the new site would be less vulnerable to attack by the United States; the York garrison was constructed at the entrance of the town's natural harbour, sheltered by a long sand-bar peninsula. The town's settlement formed at the eastern end of the harbour behind the peninsula, near the present-day intersection of Parliament Street and Front Street. In 1813, as part of the War of 1812, the Battle of York ended in the town's capture and plunder by United States forces.
The surrender of the town was negotiated by John Strachan. American soldiers destroyed much of the garrison and set fire to the parliament buildings during their five-day occupation; because of the sacking of York, British troops retaliated in the war with the Burning of Wa
The United States of America known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U. S. is the third most populous country. The capital is Washington, D. C. and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico; the State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean; the U. S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The diverse geography and wildlife of the United States make it one of the world's 17 megadiverse countries.
Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago. European colonization began in the 16th century; the United States emerged from the thirteen British colonies established along the East Coast. Numerous disputes between Great Britain and the colonies following the French and Indian War led to the American Revolution, which began in 1775, the subsequent Declaration of Independence in 1776; the war ended in 1783 with the United States becoming the first country to gain independence from a European power. The current constitution was adopted in 1788, with the first ten amendments, collectively named the Bill of Rights, being ratified in 1791 to guarantee many fundamental civil liberties; the United States embarked on a vigorous expansion across North America throughout the 19th century, acquiring new territories, displacing Native American tribes, admitting new states until it spanned the continent by 1848. During the second half of the 19th century, the Civil War led to the abolition of slavery.
By the end of the century, the United States had extended into the Pacific Ocean, its economy, driven in large part by the Industrial Revolution, began to soar. The Spanish–American War and World War I confirmed the country's status as a global military power; the United States emerged from World War II as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, a permanent member of the United Nations Security Council. Sweeping civil rights legislation, notably the Civil Rights Act of 1964, the Voting Rights Act of 1965 and the Fair Housing Act of 1968, outlawed discrimination based on race or color. During the Cold War, the United States and the Soviet Union competed in the Space Race, culminating with the 1969 U. S. Moon landing; the end of the Cold War and the collapse of the Soviet Union in 1991 left the United States as the world's sole superpower. The United States is the world's oldest surviving federation, it is a representative democracy.
The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, other international organizations. The United States is a developed country, with the world's largest economy by nominal GDP and second-largest economy by PPP, accounting for a quarter of global GDP; the U. S. economy is post-industrial, characterized by the dominance of services and knowledge-based activities, although the manufacturing sector remains the second-largest in the world. The United States is the world's largest importer and the second largest exporter of goods, by value. Although its population is only 4.3% of the world total, the U. S. holds 31% of the total wealth in the world, the largest share of global wealth concentrated in a single country. Despite wide income and wealth disparities, the United States continues to rank high in measures of socioeconomic performance, including average wage, human development, per capita GDP, worker productivity.
The United States is the foremost military power in the world, making up a third of global military spending, is a leading political and scientific force internationally. In 1507, the German cartographer Martin Waldseemüller produced a world map on which he named the lands of the Western Hemisphere America in honor of the Italian explorer and cartographer Amerigo Vespucci; the first documentary evidence of the phrase "United States of America" is from a letter dated January 2, 1776, written by Stephen Moylan, Esq. to George Washington's aide-de-camp and Muster-Master General of the Continental Army, Lt. Col. Joseph Reed. Moylan expressed his wish to go "with full and ample powers from the United States of America to Spain" to seek assistance in the revolutionary war effort; the first known publication of the phrase "United States of America" was in an anonymous essay in The Virginia Gazette newspaper in Williamsburg, Virginia, on April 6, 1776. The second draft of the Articles of Confederation, prepared by John Dickinson and completed by June 17, 1776, at the latest, declared "The name of this Confederation shall be the'United States of America'".
The final version of the Articles sent to the states for ratification in late 1777 contains the sentence "The Stile of this Confederacy shall be'The United States of America'". In June 1776, Thomas Jefferson wrote the phrase "UNITED STATES OF AMERICA" in all capitalized letters in the headline of his "original Rough draught" of the Declaration of Independence; this draft of the document did not surface unti
Leland Stanford Junior University is a private research university in Stanford, California. Stanford is known for its academic strength, proximity to Silicon Valley, ranking as one of the world's top universities; the university was founded in 1885 by Leland and Jane Stanford in memory of their only child, Leland Stanford Jr. who had died of typhoid fever at age 15 the previous year. Stanford was a U. S. Senator and former Governor of California who made his fortune as a railroad tycoon; the school admitted its first students on October 1, 1891, as a coeducational and non-denominational institution. Stanford University struggled financially after the death of Leland Stanford in 1893 and again after much of the campus was damaged by the 1906 San Francisco earthquake. Following World War II, Provost Frederick Terman supported faculty and graduates' entrepreneurialism to build self-sufficient local industry in what would be known as Silicon Valley; the university is one of the top fundraising institutions in the country, becoming the first school to raise more than a billion dollars in a year.
The university is organized around three traditional schools consisting of 40 academic departments at the undergraduate and graduate level and four professional schools that focus on graduate programs in Law, Medicine and Business. Stanford's undergraduate program is the most selective in the United States by acceptance rate. Students compete in 36 varsity sports, the university is one of two private institutions in the Division I FBS Pac-12 Conference, it has gained the most for a university. Stanford athletes have won 512 individual championships, Stanford has won the NACDA Directors' Cup for 24 consecutive years, beginning in 1994–1995. In addition, Stanford students and alumni have won 270 Olympic medals including 139 gold medals; as of October 2018, 83 Nobel laureates, 27 Turing Award laureates, 8 Fields Medalists have been affiliated with Stanford as students, faculty or staff. In addition, Stanford University is noted for its entrepreneurship and is one of the most successful universities in attracting funding for start-ups.
Stanford alumni have founded a large number of companies, which combined produce more than $2.7 trillion in annual revenue and have created 5.4 million jobs as of 2011 equivalent to the 10th largest economy in the world. Stanford is the alma mater of 30 living billionaires and 17 astronauts, is one of the leading producers of members of the United States Congress. Stanford University was founded in 1885 by Leland and Jane Stanford, dedicated to Leland Stanford Jr, their only child; the institution opened in 1891 on Stanford's previous Palo Alto farm. Despite being impacted by earthquakes in both 1906 and 1989, the campus was rebuilt each time. In 1919, The Hoover Institution on War and Peace was started by Herbert Hoover to preserve artifacts related to World War I; the Stanford Medical Center, completed in 1959, is a teaching hospital with over 800 beds. The SLAC National Accelerator Laboratory, established in 1962, performs research in particle physics. Jane and Leland Stanford modeled their university after the great eastern universities, most Cornell University and Harvard University.
Stanford opened being called the "Cornell of the West" in 1891 due to faculty being former Cornell affiliates including its first president, David Starr Jordan. Both Cornell and Stanford were among the first to have higher education be accessible and open to women as well as to men. Cornell is credited as one of the first American universities to adopt this radical departure from traditional education, Stanford became an early adopter as well. Most of Stanford University is on one of the largest in the United States, it is located on the San Francisco Peninsula, in the northwest part of the Santa Clara Valley 37 miles southeast of San Francisco and 20 miles northwest of San Jose. In 2008, 60% of this land remained undeveloped. Stanford's main campus includes a census-designated place within unincorporated Santa Clara County, although some of the university land is within the city limits of Palo Alto; the campus includes much land in unincorporated San Mateo County, as well as in the city limits of Menlo Park and Portola Valley.
The academic central campus is adjacent to Palo Alto, bounded by El Camino Real, Stanford Avenue, Junipero Serra Boulevard, Sand Hill Road. The United States Postal Service has assigned it two ZIP Codes: 94305 for campus mail and 94309 for P. O. box mail. It lies within area code 650. Stanford operates or intends to operate in various locations outside of its central campus. On the founding grant: Jasper Ridge Biological Preserve is a 1,200-acre natural reserve south of the central campus owned by the university and used by wildlife biologists for research. SLAC National Accelerator Laboratory is a facility west of the central campus operated by the university for the Department of Energy, it contains the longest linear particle accelerator in the world, 2 miles on 426 acres of land. Golf course and a seasonal lake: The university has its own golf course and a seasonal lake, both home to the vulnerable California tiger salamander; as of 2012 Lake Laguni