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classroom in Afghanistan.]] classroom in Mexico.]] in New York City.]]
Education in the largest sense is any act or experience that has a formative effect on the mind, character or physical ability of an individual. In its technical sense, education is the process by which society deliberately transmits its accumulated knowledge, skills and values from one generation to another.
Etymologically, the word education is derived from educare (Latin) "bring up", which is related to educere "bring out", "bring forth what is within", "bring out potential" and ducere, "to lead".
Teachers in educational institutions direct the education of students and might draw on many subjects, including reading, writing, mathematics, science and history. This process is sometimes called schooling when referring to the education of teaching only a certain subject, usually as professors at institutions of higher learning. There is also education in fields for those who want specific vocational skills, such as those required to be a pilot. In addition there is an array of education possible at the informal level, such as in museums and libraries, with the Internet and in life experience. Many non-traditional education options are now available and continue to evolve.
A right to education has been created and recognized by some jurisdictions: since 1952, Article 2 of the first Protocol to the European Convention on Human Rights obliges all signatory parties to guarantee the right to education. At world level, the United Nations' International Covenant on Economic, Social and Cultural Rights of 1966 guarantees this right under its Article 13.
The emergence of secondary education in the United States did not happen until 1910, caused by the rise in big businesses and technological advances in factories (for instance, the emergence of electrification), that required skilled workers. In order to meet this new job demand, high schools were created and the curriculum focused on practical job skills that would better prepare students for white collar or skilled blue collar work. This proved to be beneficial for both the employer and the employee, because this improvement in human capital caused employees to become more efficient, which lowered costs for the employer, and skilled employees received a higher wage than employees with just primary educational attainment.
In Europe, the grammar school or academy existed from as early as the 16th century; public schools or fee-paying schools, or charitable educational foundations have an even longer history.
Higher education includes teaching, research and social services activities of universities, and within the realm of teaching, it includes both the undergraduate level (sometimes referred to as tertiary education) and the graduate (or postgraduate) level (sometimes referred to as graduate school). Higher education generally involves work towards a degree-level or foundation degree qualification. In most developed countries a high proportion of the population (up to 50%) now enter higher education at some time in their lives. Higher education is therefore very important to national economies, both as a significant industry in its own right, and as a source of trained and educated personnel for the rest of the economy.
Alternatives of the latter type are often the result of education reform and are rooted in various philosophies that are commonly fundamentally different from those of traditional compulsory education. While some have strong political, scholarly, or philosophical orientations, others are more informal associations of teachers and students dissatisfied with certain aspects of traditional education. These alternatives, which include charter schools, alternative schools, independent schools, and home-based learning vary widely, but often emphasize the value of small class size, close relationships between students and teachers, and a sense of community.
Increasingly, the inclusion of indigenous models of education (methods and content) as an alternative within the scope of formal and non-formal education systems, has come to represent a significant factor contributing to the success of those members of indigenous communities who choose to access these systems, both as students/learners and as teachers/instructors.
It is currently fashionable to divide education into different learning "modes". The learning modalities are probably the most common:
* Visual: learning based on observation and seeing what is being learned.
Although it is claimed that, depending on their preferred learning modality, different teaching techniques have different levels of effectiveness, recent research has argued "there is no adequate evidence base to justify incorporating learning styles assessments into general educational practice."
A consequence of this theory is that effective teaching should present a variety of teaching methods which cover all three learning modalities so that different students have equal opportunities to learn in a way that is effective for them. Guy Claxton has questioned the extent that learning styles such as VAK are helpful, particularly as they can have a tendency to label children and therefore restrict learning.
Technology is an increasingly influential factor in education. Computers and mobile phones are used in developed countries both to complement established education practices and develop new ways of learning such as online education (a type of distance education). This gives students the opportunity to choose what they are interested in learning. The proliferation of computers also means the increase of programming and blogging. Technology offers powerful learning tools that demand new skills and understandings of students, including Multimedia, and provides new ways to engage students, such as Virtual learning environments. One such tool are virtual manipulatives, which are an "interactive, Web-based visual representation of a dynamic object that presents opportunities for constructing mathematical knowledge" (Moyer, Bolyard, & Spikell, 2002). In short, virtual manipulatives are dynamic visual/pictorial replicas of physical mathematical manipulatives, which have long been used to demonstrate and teach various mathematical concepts. Virtual manipulatives can be easily accessed on the Internet as stand-alone applets, allowing for easy access and use in a variety of educational settings. Emerging research into the effectiveness of virtual manipulatives as a teaching tool have yielded promising results, suggesting comparable, and in many cases superior overall concept-teaching effectiveness compared to standard teaching methods. Technology is being used more not only in administrative duties in education but also in the instruction of students. The use of technologies such as PowerPoint and interactive whiteboard is capturing the attention of students in the classroom. Technology is also being used in the assessment of students. One example is the Audience Response System (ARS), which allows immediate feedback tests and classroom discussions.
Information and communication technologies (ICTs) are a “diverse set of tools and resources used to communicate, create, disseminate, store, and manage information.” These technologies include computers, the Internet, broadcasting technologies (radio and television), and telephony. There is increasing interest in how computers and the Internet can improve education at all levels, in both formal and non-formal settings. Older ICT technologies, such as radio and television, have for over forty years been used for open and distance learning, although print remains the cheapest, most accessible and therefore most dominant delivery mechanism in both developed and developing countries. In addition to classroom application and growth of e-learning opportunities for knowledge attainment, educators involved in student affairs programming have recognized the increasing importance of computer usage with data generation for and about students. Motivation and retention counselors, along with faculty and administrators, can impact the potential academic success of students by provision of technology based experiences in the University setting.
The use of computers and the Internet is in its infancy in developing countries, if these are used at all, due to limited infrastructure and the attendant high costs of access. Usually, various technologies are used in combination rather than as the sole delivery mechanism. For example, the Kothmale Community Radio Internet uses both radio broadcasts and computer and Internet technologies to facilitate the sharing of information and provide educational opportunities in a rural community in Sri Lanka. The Open University of the United Kingdom (UKOU), established in 1969 as the first educational institution in the world wholly dedicated to open and distance learning, still relies heavily on print-based materials supplemented by radio, television and, in recent years, online programming. Similarly, the Indira Gandhi National Open University in India combines the use of print, recorded audio and video, broadcast radio and television, and audio conferencing technologies.
The term "computer-assisted learning" (CAL) has been increasingly used to describe the use of technology in teaching.
It has been argued that high rates of education are essential for countries to be able to achieve high levels of economic growth. Empirical analyses tend to support the theoretical prediction that poor countries should grow faster than rich countries because they can adopt cutting edge technologies already tried and tested by rich countries. However, technology transfer requires knowledgeable managers and engineers who are able to operate new machines or production practices borrowed from the leader in order to close the gap through imitation. Therefore, a country's ability to learn from the leader is a function of its stock of "human capital". Recent study of the determinants of aggregate economic growth have stressed the importance of fundamental economic institutions and the role of cognitive skills.
At the individual level, there is a large literature, generally related back to the work of Jacob Mincer, on how earnings are related to the schooling and other human capital of the individual. This work has motivated a large number of studies, but is also controversial. The chief controversies revolve around how to interpret the impact of schooling.
Economists Samuel Bowles and Herbert Gintis famously argued in 1976 that there was a fundamental conflict in American schooling between the egalitarian goal of democratic participation and the inequalities implied by the continued profitability of capitalist production on the other.
Nowadays some kind of education is compulsory to all people in most countries. Due to population growth and the proliferation of compulsory education, UNESCO has calculated that in the next 30 years more people will receive formal education than in all of human history thus far.
Educational psychology can in part be understood through its relationship with other disciplines. It is informed primarily by psychology, bearing a relationship to that discipline analogous to the relationship between medicine and biology. Educational psychology in turn informs a wide range of specialities within educational studies, including instructional design, educational technology, curriculum development, organizational learning, special education and classroom management. Educational psychology both draws from and contributes to cognitive science and the learning sciences. In universities, departments of educational psychology are usually housed within faculties of education, possibly accounting for the lack of representation of educational psychology content in introductory psychology textbooks (Lucas, Blazek, & Raley, 2006).
(according to 2007/2008 Human Development Report)]]
In developing countries, the number and seriousness of the problems faced are naturally greater. People in more remote or agrarian areas are sometimes unaware of the importance of education. However, many countries have an active Ministry of Education, and in many subjects, such as foreign language learning, the degree of education is actually much higher than in industrialized countries; for example, it is not at all uncommon for students in many developing countries to be reasonably fluent in multiple foreign languages, whereas this is much more of a rarity in the supposedly "more educated" countries where much of the population is in fact monolingual.
Universal primary education is one of the eight Millennium Development Goals and great improvements have been achieved in the past decade, yet a great deal remains to be done. Researchers at the Overseas Development Institute indicate the main obstacles to greater funding from donors include: donor priorities, aid architecture, and the lack of evidence and advocacy. Furthermore, demand in the developing world for improved educational access is not as high as one would expect as governments avoid the recurrent costs involved and there is economic pressure on those parents who prefer their children making money in the short term over any long-term benefits of education. Recent studies on child labor and poverty have suggested that when poor families reach a certain economic threshold where families are able to provide for their basic needs, parents return their children to school. This has been found to be true, once the threshold has been breached, even if the potential economic value of the children's work has increased since their return to school.
But without capacity, there is no development. A study conducted by the UNESCO International Institute for Educational Planning indicates that stronger capacities in educational planning and management may have an important spill-over effect on the system as a whole. Sustainable capacity development requires complex interventions at the institutional, organizational and individual levels that could be based on some foundational principles:
has more academic graduates than any other country in Europe.]] A lack of good universities, and a low acceptance rate for good universities, is evident in countries with a high population density. In some countries, there are uniform, over structured, inflexible centralized programs from a central agency that regulates all aspects of education.
* Due to globalization, increased pressure on students in curricular activities
India is now developing technologies that will skip land based phone and internet lines. Instead, India launched EDUSAT, an education satellite that can reach more of the country at a greatly reduced cost. There is also an initiative started by the OLPC foundation, a group out of MIT Media Lab and supported by several major corporations to develop a $100 laptop to deliver educational software. The laptops are widely available as of 2008. The laptops are sold at cost or given away based on donations. These will enable developing countries to give their children a digital education, and help close the digital divide across the world.
In Africa, NEPAD has launched an "e-school programme" to provide all 600,000 primary and high schools with computer equipment, learning materials and internet access within 10 years. Private groups, like The Church of Jesus Christ of Latter-day Saints, are working to give more individuals opportunities to receive education in developing countries through such programs as the Perpetual Education Fund. An International Development Agency project called nabuur.com, started with the support of former American President Bill Clinton, uses the Internet to allow co-operation by individuals on issues of social development.
This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
Name | The Basics |
---|---|
Background | group_or_band |
Origin | Melbourne, Australia |
Genre | Rock |
Years active | 2002 – (present) |
Label | Independent, Albert Records |
Associated acts | Gotye, Down Hills Home, Dog With Wheels, Blood Red Bird |
Url | Basics Official Website |
Current members | Wally De Backer Tim Heath Kris Schroeder |
Past members | Michael Hubbard |
Notable instruments | Lead guitar, drums, bass guitar. |
With close to 1000 shows in their eight-year career, their live performances are well-known for their sense of humour and energy.
Initially they played around Melbourne as an acoustic guitar/drums combo, starting at The Opposition in Frankston and the House of Fools in Footscray, where in late 2002 they met and later invited Michael Hubbard to join them on electric guitar. Though lacking any real experience with the instrument, Kris willingly purchased his first bass guitar and the trio was born. During this time the group start performing songs with more complicated three-part harmony.
During late 2002 and early 2003 The Basics recorded and released an album called Get Back through MGM Distribution. They began what was to become regular tours of the East and West coasts of Australia.
In 2008, the band appeared on Australia's Channel 9 for Australia Day celebrations, performing two of their songs - 'Just Hold On' and 'Hey There!' - to an estimated audience of 2 million. Securing an Australian Government grant, they embarked on a two-month tour of Australia, specifically targeting "culturally underprivileged groups" in rural and regional schoolchildren and Indigenous communities. The programme had them holding masterclasses and performing alongside Indigenous groups in the remote Northern Territory and Queensland. Their initiative also had them raising money for the charity Lifeline, their contribution to which was recognised with a plaque at the end of the tour. Season two of Californication starring David Duchovny featured their cover of the classic 'Have Love, Will Travel', most famously covered by 'The Sonics'.
In 2009, The Basics for the first time enjoyed the support of Australian radio network Triple J, which had reportedly snubbed the band's previous material. The singles 'With This Ship' and 'Like A Brother' were added to the station's playlist, and momentum carried The Basics overseas for a second tour of the United Kingdom and Norway, and also a series of shows in Dublin, Ireland. They were joined by the longtime front-of-house engineer Stuart Padbury who had been mixing them since 2005. The band was often seen in the Grafton Street Mall in Dublin busking to promote their concerts there. Their second show in Oslo, Norway saw the band perform with Hot Tub, one of the members of the Norwegian boy band "Boyzvoice", in his first performance for several years. Season Eight of Scrubs featured the song 'Lookin' Over My Shoulder'.
Despite all this promise, the band's album Keep Your Friends Close - produced and part-recorded by Peter Cobbin at London's Abbey Road Studios - though enjoying many favourable reviews, failed to impress Richard Kingsmill, music director of Triple J. This effectively ended the band's apparent upward spiral and the resulting album launch tour was reportedly "trying".
However, this hiatus was soon broken with a two-month residency at the Northcote Social Club in Melbourne, which saw an apparent return to form. The band's EP "Wait For You" enjoys airplay on Triple J. The Basics also played a one-off show at Sydney's Oxford Art Factory.
On August 20, 2010, The Basics released their fourth LP , available free online and exclusively from *[www.FreeBasicsAlbum.com]. The band had reportedly moved to expand their listenership through this free giveaway, though 300 "Deluxe" CD/Vinyl versions have been printed. was recorded at the Northcote Social Club on February 6, "in front of a live studio audience", and like the previous record was mixed by Peter Cobbin at Abbey Road Studios. Technically a self-titled album, the phonetics spell out the accurate pronunciation of the band’s name. Kris Schroeder: "For years we’ve worked at bringing our live energy into the studio and thus far it’s been a bit hit-and-miss. Our trick this time was to pull a switcheroo and bring the studio to us instead; the result is the best and closest to us we’ve sounded yet."
Melbourne thespian and Dog With Wheels bassist David Bramble - friends with Heath from university days - has occasionally joined the band on tour, playing keys, often while sporting a large moustache. Other guests have included Jake Mason (saxophone), also of Cookin' on 3 Burners and The Bamboos, Gideon Brazil (saxophone, flute), Simon Imrei (guitar and vocals) and Monty MacKenzie (saxophone).
Covers have often made an appearance from various sources: to date, some of the bands covered have been Cream, The Kinks, The Rolling Stones, The Police, Neil Young, Bob Dylan, New Kids on the Block, Richard Berry, Sonny Curtis and The Crickets, JJ Cale, Harry Nilsson, Bill Scott, Ryan Adams and The Coasters (via The Beatles for their cover of Three Cool Cats).
This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
Professor Mitra is one of the most invited keynote speakers on education in the world. See www.sugatam.wikispaces.com
The Hole in the Wall experiment has left a mark on popular culture. Indian diplomat Vikas Swarup read about Mitra's experiment and was inspired to write his debut novel Q & A - this subsequently went on to become the movie Slumdog Millionaire.
Prof. Mitra is a leading proponent of MIE. He has a PhD in Physics and is credited with more that 25 inventions in the area of cognitive science and education technology. He was conferred the prestigious Dewang Mehta Award for Innovation in Information Technology in the year 2005.
Professor Mitra was recently described as a polymath by the University of London and his 30 years of research spans a wide range of disciplines.
Starting with molecular orbital computation in the 1970s, Mitra discovered that the structure of organic molecules determine their function more than the constituent atoms (Crystal structure sensitivity of the band structure of organic semiconductors. S.C. Mathur and S. Mitra, Journal of Phys.C Solid State, 12, (2) (1979) UK).
After a Ph.D. in Solid State Physics from the IIT, Delhi, he went on to research energy storage systems, first at the Centre for Energy Studies in the IIT and then at the Technische Universität, Vienna, Austria. This resulted in a new design for Zinc-Chlorine batteries that is now in use by the military (A design for zinc-chlorine batteries. S. Mitra, Journal of Power Sources, 8, 359-367 (1982) USA).
His interests in the flow of electricity through biological systems, a consequence of his Ph.D. research on exciton dissociation in organic semiconductors, led on to a seminally speculative paper on why the human sense organs are located where they are (A correlation between the location and sensitivity of human sense organs. A.K. Banerjee and S. Mitra, Spec. Science and Technology, 5, (2), 141 (1982) Australia).
His interest in computer networking led him towards the emerging systems in printing in the 1980s. He set up India’s first local area network based newspaper publishing system in 1984 and went on to predict the desktop publishing industry (Compositors that compute, S. Mitra, Computers Today, May 1985, India). This in turn led to the invention of LAN based database publishing and he created the “Yellow Pages” industry in India and Bangladesh.
His interest in the human mind once again led him into the areas of learning and memory and he was amongst the first in the world to show that simulated neural networks can help decipher the mechanisms of Alzheimer’s disease (The effect of synaptic disconnection on bi-directional associative recall. S. Mitra , Proc. IEEE/SMC Conf., Vol.1, 989, 1994 USA).
He was amongst the first people in the world to invent Voluntary Perception Recording (a continuously variable voting machine) and a hyperlinked computing environment, several years ahead of the Internet. (Voluntary perception analysis - a new measurement device. S. Mitra, Media and Technology for Human Resources Development, Oct. 1989, India and Imaginet - An associative, non-linear, multimedia storage and retrieval system. S. Mitra and Ajay Magon, Multimedia Computer and Communications (INFOCOM ’92), Tata McGraw Hill pp20-30, (1992), Bombay, India).
Professor Mitra’s work at NIIT created the first curricula and pedagogy for that organisation, followed by years of research on learning styles, learning devices, several of them now patented, multimedia and new methods of learning. Culminating and, perhaps, towering over his previous work, are his “hole in the wall” experiments with children’s learning. Since 1999, he has convincingly demonstrated that groups of children, irrespective of who or where they are, can learn to use computers and the Internet on their own using public computers in open spaces such as roads and playgrounds (Mitra, Sugata, Ritu Dangwal, Shiffon Chatterjee, Swati Jha, Ravinder S. Bisht and Preeti Kapur (2005), Acquisition of Computer Literacy on Shared Public Computers: Children and the “Hole in the wall”, Australasian Journal of Educational Technology, 21(3), 407-426. http://www.ascilite.org.au/ajet/ajet21/mitra.html). His publication was judged the best open access publication in the world for 2005 and he was awarded the Diwang Mehta award for innovation in IT in the same year.
Since the 1970s, Professor Mitra’s publications and work has resulted in training and development of perhaps a million young Indians, amongst them some of the poorest children in the world. The resultant changes in the lives of people and the economy of the country can only be guessed at.
Category:Indian computer scientists Category:Living people Category:Academics of Newcastle University Category:Indian Institute of Technology Delhi alumni
This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
Name | Stephen William Hawking |
---|---|
Caption | Stephen Hawking at NASA, 1980's. |
Birth name | Stephen William Hawking |
Birth date | January 08, 1942 |
Birth place | Oxford, England |
Residence | England |
Nationality | British |
Religion | Agnostic |
Fields | Applied mathematics Theoretical physics Cosmology |
Workplaces | University of Cambridge California Institute of Technology Perimeter Institute for Theoretical Physics |
Alma mater | University of Oxford University of Cambridge |
Doctoral advisor | Dennis Sciama |
Academic advisors | Robert Berman |
Doctoral students | Bruce Allen Raphael Bousso Fay Dowker Malcolm Perry Bernard Carr Gary Gibbons Harvey Reall Don Page Tim Prestidge Raymond Laflamme Julian Luttrell |
Known for | Black holes Theoretical cosmology Quantum gravity Hawking radiation |
Influences | Dikran Tahta |
Awards | |
Spouse | Jane Hawking |
Stephen William Hawking, CH, CBE, FRS, FRSA (born 8 January 1942) is an English theoretical physicist and cosmologist, whose scientific books and public appearances have made him an academic celebrity. He is an Honorary Fellow of the Royal Society of Arts, a lifetime member of the Pontifical Academy of Sciences, and in 2009 was awarded the Presidential Medal of Freedom, the highest civilian award in the United States.
Hawking was the Lucasian Professor of Mathematics at the University of Cambridge for thirty years, taking up the post in 1979 and retiring on 1 October 2009. He is also a Fellow of Gonville and Caius College, Cambridge and a Distinguished Research Chair at the Perimeter Institute for Theoretical Physics in Waterloo, Ontario. He is known for his contributions to the fields of cosmology and quantum gravity, especially in the context of black holes. He has also achieved success with works of popular science in which he discusses his own theories and cosmology in general; these include the runaway best seller A Brief History of Time, which stayed on the British Sunday Times bestsellers list for a record-breaking 237 weeks.
Hawking's key scientific works to date have included providing, with Roger Penrose, theorems regarding gravitational singularities in the framework of general relativity, and the theoretical prediction that black holes should emit radiation, which is today known as Hawking radiation (or sometimes as Bekenstein–Hawking radiation).
Hawking has a neuro-muscular dystrophy that is related to amyotrophic lateral sclerosis, a condition that has progressed over the years and has left him almost completely paralysed.
After Hawking was born, the family moved back to London, where his father headed the division of parasitology at the National Institute for Medical Research. From the age of eleven, he attended St Albans School, where he was a good, but not exceptional, student. He maintains his connection with the school, giving his name to one of the four houses and to an extracurricular science lecture series. He has visited it to deliver one of the lectures and has also granted a lengthy interview to pupils working on the school magazine, The Albanian.
Hawking was always interested in science. resulted in a final examination score on the borderline between first and second class honours, making an "oral examination" necessary. Berman said of the oral examination:
After receiving his B.A. degree at Oxford in 1962, he stayed to study astronomy. He decided to leave when he found that studying sunspots, which was all the observatory was equipped for, did not appeal to him and that he was more interested in theory than in observation. He continues to have ties with Caltech, spending a month each year there after 1992.
Hawking's achievements were made despite the increasing paralysis caused by the ALS. By 1974, he was unable to feed himself or get out of bed. His speech became slurred so that he could be understood only by people who knew him well. In 1985, he caught pneumonia and had to have a tracheotomy, which made him unable to speak at all. A Cambridge scientist built a device that enables Hawking to write onto a computer with small movements of his body, and then have a voice synthesizer speak what he has typed.
In the late 1960s, he and his Cambridge friend and colleague, Roger Penrose, applied a new, complex mathematical model they had created from Albert Einstein's theory of general relativity. This led, in 1970, to Hawking proving the first of many singularity theorems; such theorems provide a set of sufficient conditions for the existence of a gravitational singularity in space-time. This work showed that, far from being mathematical curiosities which appear only in special cases, singularities are a fairly generic feature of general relativity.
He supplied a mathematical proof, along with Brandon Carter, Werner Israel and D. Robinson, of John Wheeler's no-hair theorem – namely, that any black hole is fully described by the three properties of mass, angular momentum, and electric charge.
Hawking also suggested upon analysis of gamma ray emissions that after the Big Bang, primordial mini black holes were formed. With Bardeen and Carter, he proposed the four laws of black hole mechanics, drawing an analogy with thermodynamics. In 1974, he calculated that black holes should thermally create and emit subatomic particles, known today as Bekenstein-Hawking radiation, until they exhaust their energy and evaporate.
In collaboration with Jim Hartle, Hawking developed a model in which the universe had no boundary in space-time, replacing the initial singularity of the classical Big Bang models with a region akin to the North Pole: one cannot travel north of the North Pole, as there is no boundary. While originally the no-boundary proposal predicted a closed universe, discussions with Neil Turok led to the realisation that the no-boundary proposal is also consistent with a universe which is not closed.
Along with Thomas Hertog at CERN, in 2006 Hawking proposed a theory of "top-down cosmology," which says that the universe had no unique initial state, and therefore it is inappropriate for physicists to attempt to formulate a theory that predicts the universe's current configuration from one particular initial state. Top-down cosmology posits that in some sense, the present "selects" the past from a superposition of many possible histories. In doing so, the theory suggests a possible resolution of the fine-tuning question: It is inevitable that we find our universe's present physical constants, as the current universe "selects" only those past histories that led to the present conditions. In this way, top-down cosmology provides an anthropic explanation for why we find ourselves in a universe that allows matter and life, without invoking an ensemble of multiple universes.
Hawking's many other scientific investigations have included the study of quantum cosmology, cosmic inflation, helium production in anisotropic Big Bang universes, large N cosmology, the density matrix of the universe, topology and structure of the universe, baby universes, Yang-Mills instantons and the S matrix, anti de Sitter space, quantum entanglement and entropy, the nature of space and time, including the arrow of time, spacetime foam, string theory, supergravity, Euclidean quantum gravity, the gravitational Hamiltonian, Brans-Dicke and Hoyle-Narlikar theories of gravitation, gravitational radiation, and wormholes.
At a George Washington University lecture in honour of NASA's fiftieth anniversary, Hawking theorised on the existence of extraterrestrial life, believing that "primitive life is very common and intelligent life is fairly rare."
talks with Stephen Hawking in the Blue Room of the White House before a ceremony presenting him and fifteen others the Presidential Medal of Freedom on 12 August 2009. The Medal of Freedom is the nation's highest civilian honour.]]
Hawking was in the news in July 2004 for presenting a new theory about black holes which goes against his own long-held belief about their behaviour, thus losing a bet he made with Kip Thorne and John Preskill of Caltech. Classically, it can be shown that information crossing the event horizon of a black hole is lost to our universe, and that thus all black holes are identical beyond their mass, electrical charge and angular velocity (the "no hair theorem"). The problem with this theorem is that it implies the black hole will emit the same radiation regardless of what goes into it, and as a consequence that if a pure quantum state is thrown into a black hole, an "ordinary" mixed state will be returned. This runs counter to the rules of quantum mechanics and is known as the black hole information paradox.
At the celebration of his sixty-fifth birthday on 8 January 2007, Hawking announced his plan to take a zero-gravity flight in 2007 to prepare for a sub-orbital spaceflight in 2009 on Virgin Galactic's space service. Billionaire Richard Branson pledged to pay all expenses for the latter, costing an estimated £100,000. Stephen Hawking's zero-gravity flight in a "Vomit Comet" of Zero Gravity Corporation, during which he experienced weightlessness eight times, took place on 26 April 2007. He became the first quadriplegic to float in zero-gravity. This was the first time in forty years that he moved freely, without his wheelchair. The fee is normally US$3,750 for 10–15 plunges, but Hawking was not required to pay the fee. A bit of a futurist, Hawking was quoted before the flight saying: }} In an interview with The Daily Telegraph, he suggested that space was the Earth's long term hope. He continued this theme at a 2008 Charlie Rose interview.
Stephen Hawking is severely disabled by a motor neurone disease known as amyotrophic lateral sclerosis (ALS). Hawking's illness is markedly different from typical ALS in that his form of ALS would make for the most protracted case ever documented. A survival for more than ten years after diagnosis is uncommon for ALS; the longest documented durations are thirty-two and thirty-nine years and these cases were termed benign because of the lack of the typical progressive course.
When he was young, he enjoyed riding horses and playing with other children. At Oxford, he coxed a rowing team, which, he stated, helped relieve his immense boredom at the university. Symptoms of the disorder first appeared while he was enrolled at University of Cambridge; he lost his balance and fell down a flight of stairs, hitting his head. Worried that he would lose his genius, he took the Mensa test to verify that his intellectual abilities were intact. The diagnosis of motor neurone disease came when Hawking was 21, shortly before his first marriage, and doctors said he would not survive more than two or three years. Hawking gradually lost the use of his arms, legs, and voice, and as of 2009 has been almost completely paralysed.
During a visit to the research centre CERN in Geneva in 1985, Hawking contracted pneumonia, which in his condition was life-threatening as it further restricted his already limited respiratory capacity. He had an emergency tracheotomy, and as a result lost what remained of his ability to speak. He has since used an electronic voice synthesizer to communicate.
The DECtalk DTC01 voice synthesizer he uses, which has an American English accent, is no longer being produced. Asked why he has still kept it after so many years, Hawking mentioned that he has not heard a voice he likes better and that he identifies with it. Hawking is said to be looking for a replacement since, aside from being obsolete, the synthesizer is both large and fragile by current standards. As of mid 2009, he was said to be using NeoSpeech's VoiceText speech synthesizer.
In Hawking's many media appearances, he appears to speak fluently through his synthesizer, but in reality, it is a tedious drawn-out process. Hawking's setup uses a predictive text entry system, which requires only the first few characters in order to auto-complete the word, but as he is only able to use his cheek for data entry, constructing complete sentences takes time. His speeches are prepared in advance, but having a live conversation with him provides insight as to the complexity and work involved. During a Technology, Entertainment, & Design Conference talk, it took him seven minutes to answer a question.
He describes himself as lucky despite his disease. Its slow progression has allowed him time to make influential discoveries and has not hindered him from having, in his own words, "a very attractive family." When his wife, Jane, was asked why she decided to marry a man with a three-year life expectancy, she responded, "Those were the days of atomic gloom and doom, so we all had a rather short life expectancy." On 20 April 2009, Cambridge University released a statement saying that Hawking was "very ill" with a chest infection, and was admitted to Addenbrooke's Hospital. The following day, it was reported that his new condition is "comfortable" and he should make a full recovery from the infection.
Hawking is also known for his wit; he is famous for his oft-made statement, "When I hear of Schrödinger's cat, I reach for my pistol." This was a deliberately ironic paraphrase of "Whenever I hear the word culture... I release the safety-catch of my Browning", from the play Schlageter (Act 1, Scene 1) by German playwright and Nazi Poet Laureate Hanns Johst. His wit has both entertained the non-specialist public and helped them to understand complex questions. Asked in October 2005 on the British daytime chat show Richard & Judy, to explain his assertion that the question "What came before the Big Bang?" was meaningless, he compared it to asking "What lies north of the North Pole?"
Hawking has generally avoided talking about politics at length, but he has appeared on a political broadcast for the United Kingdom's Labour Party. He supports the children's charity SOS Children's Villages UK.
In 1999, Jane Hawking published a memoir, Music to Move the Stars, detailing her own long-term relationship with a family friend whom she later married. Hawking's daughter, Lucy, is a novelist. Their oldest son, Robert, emigrated to the United States, married, and has one child, George Edward Hawking. Reportedly, Hawking and his first family were reconciled in 2007.
Hawking was asked about his IQ in a 2004 newspaper interview, and replied, "I have no idea. People who boast about their I.Q. are losers."
His ex-wife, Jane said during their divorce proceedings that he was an atheist. Hawking has stated that he is "not religious in the normal sense" and he believes that "the universe is governed by the laws of science. The laws may have been decreed by God, but God does not intervene to break the laws." Hawking compared religion and science in 2010, saying: "There is a fundamental difference between religion, which is based on authority [imposed dogma, faith], [as opposed to] science, which is based on observation and reason. Science will win because it works."
Footnote: On Hawking's website, he denounces the unauthorised publication of The Theory of Everything and asks consumers to be aware that he was not involved in its creation.
;Dated
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Name | Conrad Wolfram |
---|---|
Caption | Conrad Wolfram in transmediale 10 talking about Wolfram Alpha. |
Birth date | June 10, 1970 |
Residence | UK |
Nationality | British |
Occupation | Strategic and International Director Wolfram Research |
Alma mater | Cambridge University |
Conrad Wolfram (born 1970) is a British technologist and businessman known for his work in information technology and its application.
Wolfram Research was founded by his brother Stephen Wolfram, the maker of Mathematica software and the Wolfram Alpha knowledge engine.
Conrad Wolfram has led the effort to move the use of Mathematica from pure computation system to development and deployment engine, instigating technology such as the Mathematica Player family and web Mathematica and by pushing greater automation within the system. He has also lead the focus on interactive publishing technology with the stated aim of "making new applications as everyday as new documents" claiming that "If a picture is worth a thousand words, an interactive document is worth a thousand pictures."
Wolfram was on the founding committee of the IMS conferences.
In 2009 he spoke about education reform at the TEDx Conference at the EU Parliament. and again at TED Global 2010 where he argued that "Maths should be more practical and more conceptual, but less mechanical," and that "Calculating is the machinery of math -- a means to an end."
He serves on the Computer science committee Advisory Board at Kings College London.
This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.