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Pitch Drop Experiment
A pitch drop experiment is a long-term experiment which measures the flow of a piece of pitch over many years. 'Pitch' is the name for any of a number of highly viscous liquids which appear solid, most commonly bitumen, also known as asphalt. At room temperature, tar pitch flows at a very low rate, taking several years to form a single drop. University of Queensland experiment The best-known version of the experiment was started in 1927 by Professor Thomas Parnell of the University of Queensland in Brisbane, Australia, to demonstrate to students that some substances which appear solid are highly viscous fluids. Parnell poured a heated sample of the pitch into a sealed funnel and allowed it to settle for three years. In 1930, the seal at the neck of the funnel was cut, allowing the pitch to start flowing. A glass dome covers the funnel and it is placed on display outside a lecture theatre. Large droplets form and fall over a period of about a decade. The seventh drop fell at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Queensland Pitch Drop Experiment-white Bg
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic Church monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word ''universitas'' (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxford Electric Bell
The Oxford Electric Bell or Clarendon Dry Pile is an experimental electric bell, in particular a type of bell that uses the electrostatic clock principle that was set up in 1840 and which has run nearly continuously ever since. It was one of the first pieces purchased for a collection of apparatus by clergyman and physicist Robert Walker. It is located in a corridor adjacent to the foyer of the Clarendon Laboratory at the University of Oxford, England, and is still ringing, albeit inaudibly due to being behind two layers of glass. Design The experiment consists of two brass bells, each positioned beneath a dry pile (a form of battery), the pair of piles connected in series, giving the bells opposite electric charges. The clapper is a metal sphere approximately in diameter suspended between the piles, which rings the bells alternately due to electrostatic force. When the clapper touches one bell, it is charged by that pile. It is then repelled from that bell due to having the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RTÉ News
RTÉ News and Current Affairs ( ga, Nuacht agus Cúrsaí Reatha RTÉ), also known as RTÉ News (''Nuacht RTÉ''), is the national news service provided by Irish public broadcaster Raidió Teilifís Éireann. Its services include local, national, European and international news, investigative journalism and current affairs programming for RTÉ television, radio, online, podcasts, on-demand and for independent Irish language public broadcaster TG4. It is the largest and most popular news source in Ireland – with 77% of the Irish public regarding it as their main source of both Irish and international news. It broadcasts in English, Irish and Irish Sign Language. The organisation is also a source of commentary on current affairs. The division is based at the RTÉ Television Centre in Donnybrook, Dublin; however, the station also operates regional bureaux across Ireland and the world. History Early history On 1 January, 1926, 2RN, Ireland's first radio station, began broadcasti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature Publishing Group
Nature Portfolio (formerly known as Nature Publishing Group and Nature Research) is a division of the international scientific publishing company Springer Nature that publishes academic journals, magazines, online databases, and services in science and medicine. Nature Research's flagship publication is ''Nature'', a weekly multidisciplinary journal first published in 1869. It also publishes the ''Nature-''titled research journals, ''Nature Reviews'' journals (since 2000), society-owned academic journals, and a range of open access journals, including '' Scientific Reports'' and ''Nature Communications''. Springer Nature also publishes ''Scientific American'' in 16 languages, a magazine intended for the general public. In 2013, prior to the merger with Springer and the creation of Springer Nature, Nature Publishing Group's owner, Holtzbrinck Publishing Group, bought a controlling stake in Frontiers. Before Springer Nature was formed in 2015, Nature Research (as the Nature Publi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernest Walton
Ernest Thomas Sinton Walton (6 October 1903 – 25 June 1995) was an Irish physicist and Nobel laureate. He is best known for his work with John Cockcroft to construct one of the earliest types of particle accelerator, the Cockcroft–Walton generator. In experiments performed at Cambridge University in the early 1930s using the generator, Walton and Cockcroft became the first team to use a particle beam to transform one element to another. According to their Nobel Prize citation: "Thus, for the first time, a nuclear transmutation was produced by means entirely under human control." Early years Ernest Walton was born in Abbeyside, Dungarvan, County Waterford to a Methodist minister father, Rev John Walton (1874–1936) and Anna Sinton (1874–1906). In those days a general clergyman's family moved once every three years, and this practice carried Ernest and his family, while he was a small child, to Rathkeale, County Limerick (where his mother died) and to County Monaghan. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinity College Dublin
, name_Latin = Collegium Sanctae et Individuae Trinitatis Reginae Elizabethae juxta Dublin , motto = ''Perpetuis futuris temporibus duraturam'' (Latin) , motto_lang = la , motto_English = It will last into endless future times , founder = Queen Elizabeth I , established = , named_for = Trinity, The Holy Trinity.The Trinity was the patron of The Dublin Guild Merchant, primary instigators of the foundation of the University, the arms of which guild are also similar to those of the College. , previous_names = , status = , architect = , architectural_style =Neoclassical architecture , colours = , gender = , sister_colleges = St. John's College, CambridgeOriel College, Oxford , freshman_dorm = , head_label = , head = , master = , vice_head_label = , vice_head = , warden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newser
Newser is an American news aggregation website. It was founded in 2007 by journalist/media pundit Michael Wolff and businessman Patrick Spain, the former CEO of HighBeam Research and Hoover's. Newser's president and editor-in-chief is Kate Seamons, formerly of the ''Chicago Sun-Times'', who joined the site in 2007 as managing editor. She was promoted when founding editor-in-chief Caroline Miller left the organization at the end of August 2010; Seamons became president in December 2012. History Newser launched in October 2007 at a party at New York's Waverly Inn and was lauded as " Drudge-like" and "innovative." Newser's tagline, “Read Less, Know More” embodies the idea behind the site's creation. The website utilizes human-powered aggregation; its staff of editors and writers curate approximately 45 stories each day and present them in a two paragraph, multiple source format. In February 2009, ''The New York Times'' threatened legal action against Newser for trademark in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stroke
A stroke is a medical condition in which poor blood flow to the brain causes cell death. There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. Both cause parts of the brain to stop functioning properly. Signs and symptoms of a stroke may include an inability to move or feel on one side of the body, problems understanding or speaking, dizziness, or loss of vision to one side. Signs and symptoms often appear soon after the stroke has occurred. If symptoms last less than one or two hours, the stroke is a transient ischemic attack (TIA), also called a mini-stroke. A hemorrhagic stroke may also be associated with a severe headache. The symptoms of a stroke can be permanent. Long-term complications may include pneumonia and loss of bladder control. The main risk factor for stroke is high blood pressure. Other risk factors include high blood cholesterol, tobacco smoking, obesity, diabetes mellitus, a previous TIA, end-st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
St Lucia, Queensland
St Lucia is a riverside suburb in the City of Brisbane, Queensland, Australia. In the St Lucia had a population of 12,574 people. The University of Queensland is the main attraction of St Lucia, with the university, and residential colleges covering a large proportion of the suburb. St Lucia is home to a diverse range of people and families. Typically, the student population of St Lucia is high, especially in dwellings in the immediate vicinity of the university, but the suburb is also home to wealthy professionals and families. Geography St Lucia is located by road southwest of the Brisbane GPO. The suburb sits on a peninsula, bounded on the north, east and south by the median in a bend of the Brisbane River. The eastern third of the suburb is occupied by the main campus of the University of Queensland. The flatter area on the northern side is primarily medium to high density residential including some high-rise apartments on the river-front. The more hilly area in the centre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
School Of Mathematics And Physics
In contemporary education, mathematics education, known in Europe as the didactics or pedagogy of mathematics – is the practice of teaching, learning and carrying out Scholarly method, scholarly research into the transfer of mathematical knowledge. Although research into mathematics education is primarily concerned with the tools, methods and approaches that facilitate practice or the study of practice, it also covers an extensive field of study encompassing a variety of different concepts, theories and methods. List of mathematical societies, National and international organisations regularly hold conferences and List of mathematics education journals, publish literature in order to improve mathematics education. History Ancient Elementary mathematics were a core part of education in many ancient civilisations, including ancient Egypt, Babylonia, ancient Babylonia, ancient Greece, ancient Rome and Vedic civilization, Vedic Ancient India, India. In most cases, formal educatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Webcam
A webcam is a video camera which is designed to record or stream to a computer or computer network. They are primarily used in videotelephony, livestreaming and social media, and security. Webcams can be built-in computer hardware or peripheral devices, and are commonly connected to a device using USB or wireless protocols. Webcams have been used on the Internet as early as 1993, and the first widespread commercial one became available in 1994. Early webcam usage on the Internet was primarily limited to stationary shots streamed to web sites. In the late 1990s and early 2000s, instant messaging clients added support for webcams, increasing their popularity in video conferencing. Computer manufacturers also started integrating webcams into laptop hardware. In 2020, the COVID-19 pandemic caused a shortage of webcams due to the increased number of people working from home. History Early development (early 1990s) First developed in 1991, a webcam was pointed at the Trojan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nobel Prize
The Nobel Prizes ( ; sv, Nobelpriset ; no, Nobelprisen ) are five separate prizes that, according to Alfred Nobel's will of 1895, are awarded to "those who, during the preceding year, have conferred the greatest benefit to humankind." Alfred Nobel was a Swedish chemist, engineer, and industrialist most famously known for the invention of dynamite. He died in 1896. In his will, he bequeathed all of his "remaining realisable assets" to be used to establish five prizes which became known as "Nobel Prizes." Nobel Prizes were first awarded in 1901. Nobel Prizes are awarded in the fields of Physics, Chemistry, Physiology or Medicine, Literature, and Peace (Nobel characterized the Peace Prize as "to the person who has done the most or best to advance fellowship among nations, the abolition or reduction of standing armies, and the establishment and promotion of peace congresses"). In 1968, Sveriges Riksbank (Sweden's central bank) funded the establishment of the Prize in Economi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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