|
Rosemary Fowler
Rosemary Fowler (née Brown, born 1926) is a British physicist who in 1948 as a 22-year-old doctoral researcher discovered the kaon (or K meson particle). While studying photographic plates that had been left exposed to cosmic rays, she identified a new configuration of tracks within the photographic emulsion that she recognised as being the decay of an unknown charged particle. Her discovery contributed to the introduction into particle physics of the property of strangeness, and to physicists' understanding that parity is not conserved in weak interactions – features that now form an integral part of the Standard Model of particle physics. Early life and education Born in Suffolk in 1926, Brown grew up in Malta, Portsmouth and finally Bath, as her family moved to follow the postings of her father, a Royal Naval engineer. At school in wartime Bath, she excelled in maths and science, and was the only girl in her year to go to university. In 1947, she became one of the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suffolk
Suffolk () is a ceremonial county of England in East Anglia. It borders Norfolk to the north, Cambridgeshire to the west and Essex to the south; the North Sea lies to the east. The county town is Ipswich; other important towns include Lowestoft, Bury St Edmunds, Newmarket, and Felixstowe which has one of the largest container ports in Europe. The county is low-lying but can be quite hilly, especially towards the west. It is also known for its extensive farming and has largely arable land with the wetlands of the Broads in the north. The Suffolk Coast & Heaths and Dedham Vale are both nationally designated Areas of Outstanding Natural Beauty. History Administration The Anglo-Saxon settlement of Suffolk, and East Anglia generally, occurred on a large scale, possibly following a period of depopulation by the previous inhabitants, the Romanised descendants of the Iceni. By the fifth century, they had established control of the region. The Anglo-Saxon inhabitant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Emulsion
A nuclear emulsion plate is a type of particle detector first used in nuclear and particle physics experiments in the early decades of the 20th century. https://cds.cern.ch/record/1728791/files/vol6-issue5-p083-e.pdf''The Study of Elementary Particles by the Photographic Method'', C.F.Powell, P.H.Fowler, D.H.Perkins: Pergamon Press, New York, 1959.Walter H. Barkas, ''Nuclear Research Emulsions I. Techniques and Theory'', in ''Pure and Applied Physics: A Series of Monographs and Textbooks, Vol. 15'', Academic Press, New York and London, 1963. http://becquerel.jinr.ru/text/books/Barkas_NUCL_RES_EMULSIONS.pdf It is a modified form of photographic plate that can be used to record and investigate fast charged particles like alpha-particles, nucleons, leptons or mesons. After exposing and developing the emulsion, single particle tracks can be observed and measured using a microscope. Description The nuclear emulsion plate is a modified form of photographic plate, coated with a thick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master (college)
A master (more generically called a head of house or head of college) is the head or senior member of a college within a collegiate university, principally in the United Kingdom. The actual title of the head of a college varies widely between institutions. The role of master varies significantly between colleges of the same university, and even more so between different universities. However, the master will often have responsibility for leading the governing body of the college, often acting as a chair of various college committees; for executing the decisions of the governing body through the college's organisational structure, acting as a chief executive; and for representing the college externally, both within the government of the university and further afield often in aid of fund-raising for the college. The nature of the role varies in importance depending on the nature of the collegiate university. At loosely federated universities such as the University of London, ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mary Fowler (geologist)
Christine Mary Rutherford Fowler, (born 1950) is a British geologist and academic. From 2012 to 2020, she served as the Master of Darwin College, Cambridge. She was previously a lecturer at Royal Holloway, University of London, rising to become Dean of its Faculty of Science. Early life and education Fowler was born in 1950 to Rosemary and Peter Fowler. She comes from a family of eminent scientists. A great-grandfather was Ernest Rutherford, the 'father of nuclear physics', and her grandfather, Rutherford's son-in-law, was the mathematical physicist Ralph H. Fowler. She studied mathematics at Girton College, Cambridge, graduating with a first class Bachelor of Arts (BA) degree in 1972. In 1972 she joined Darwin College, Cambridge to undertake post-graduate studies in geophysics and completed her Doctor of Philosophy (PhD) degree in 1976. Her doctoral thesis was titled "Seismic Studies of the Mid-Atlantic Ridge". Academic career From 1977 to 1978, Fowler was a Royal Society Eur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clifford Butler
Sir Clifford Charles Butler FRS (20 May 1922 – 30 June 1999) was an English physicist, best known for the discovery of the hyperon and meson types of particles. In later life, Butler was involved in educational policy, serving as director of the Nuffield Foundation and vice-chancellor of Loughborough University. Life Butler was born in Reading on 20 May 1922, the son of Charles Hannington James Butler, a clerk and buyer to a local wholesale grocer, and his wife Olive Pembroke. He attended both Reading School and the University of Reading, becoming both a Bachelor of Science and a Doctor of Philosophy there. He was appointed assistant lecturer in physics at the University of Manchester in 1945, and lecturer in 1947. In the same year he married Kathleen Betty Collins. They had two daughters. He died in Glenfield Hospital, near Leicester on 30 June 1999. Work At Manchester, Butler worked with G. D. Rochester, studying cosmic rays using a cloud chamber. During this research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Rochester
George Dixon Rochester, FRS (4 February 1908 – 26 December 2001) was a British physicist known for having co-discovered, with Sir Clifford Charles Butler, a subatomic particle called the kaon. Biography Rochester was born in Wallsend, the only child of Thomas Rochester, a blacksmith, who was later a toolsmith in the Swan Hunter shipyard, and his wife, Ellen, née Dixon. After attending local primary schools, Rochester went to Wallsend Grammar School in 1920, where he did well in chemistry and physics, and gained a scholarship to Armstrong College, Newcastle. He graduated with first-class honours in physics in 1930 (delayed by an attack of measles), under the guidance of W E Curtis (later an FRS). He gained a postgraduate scholarship and joined Curtis’s research group in 1931. After an unsatisfying start, working on the band spectrum of helium, he and fellow-student H G Howell decided between them to work on the spectra of heavy diatomic molecules, in particular compoun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature (journal)
''Nature'' is a British weekly scientific journal founded and based in London, England. As a multidisciplinary publication, ''Nature'' features peer-reviewed research from a variety of academic disciplines, mainly in science and technology. It has core editorial offices across the United States, continental Europe, and Asia under the international scientific publishing company Springer Nature. ''Nature'' was one of the world's most cited scientific journals by the Science Edition of the 2019 '' Journal Citation Reports'' (with an ascribed impact factor of 42.778), making it one of the world's most-read and most prestigious academic journals. , it claimed an online readership of about three million unique readers per month. Founded in autumn 1869, ''Nature'' was first circulated by Norman Lockyer and Alexander Macmillan as a public forum for scientific innovations. The mid-20th century facilitated an editorial expansion for the journal; ''Nature'' redoubled its efforts in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tau (particle)
The tau (), also called the tau lepton, tau particle, tauon or tau electron, is an elementary particle similar to the electron, with negative electric charge and a spin of . Like the electron, the muon, and the three neutrinos, the tau is a lepton, and like all elementary particles with half-integer spin, the tau has a corresponding antiparticle of opposite charge but equal mass and spin. In the tau's case, this is the "antitau" (also called the ''positive tau''). Tau particles are denoted by the symbol and the antitaus by . Tau leptons have a lifetime of and a mass of (compared to for muons and for electrons). Since their interactions are very similar to those of the electron, a tau can be thought of as a ''much'' heavier version of the electron. Because of their greater mass, tau particles do not emit as much bremsstrahlung radiation as electrons; consequently they are potentially much more highly penetrating than electrons. Because of its short lifetime, the rang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elementary Particle
In particle physics, an elementary particle or fundamental particle is a subatomic particle that is not composed of other particles. Particles currently thought to be elementary include electrons, the fundamental fermions (quarks, leptons, antiquarks, and antileptons, which generally are matter particles and antimatter particles), as well as the fundamental bosons ( gauge bosons and the Higgs boson), which generally are force particles that mediate interactions among fermions. A particle containing two or more elementary particles is a composite particle. Ordinary matter is composed of atoms, once presumed to be elementary particles – ''atomos'' meaning "unable to be cut" in Greek – although the atom's existence remained controversial until about 1905, as some leading physicists regarded molecules as mathematical illusions, and matter as ultimately composed of energy. Subatomic constituents of the atom were first identified in the early 1930s; the electron and the proton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meson
In particle physics, a meson ( or ) is a type of hadronic subatomic particle composed of an equal number of quarks and antiquarks, usually one of each, bound together by the strong interaction. Because mesons are composed of quark subparticles, they have a meaningful physical size, a diameter of roughly one femtometre (10 m), which is about 0.6 times the size of a proton or neutron. All mesons are unstable, with the longest-lived lasting for only a few hundredths of a microsecond. Heavier mesons decay to lighter mesons and ultimately to stable electrons, neutrinos and photons. Outside the nucleus, mesons appear in nature only as short-lived products of very high-energy collisions between particles made of quarks, such as cosmic rays (high-energy protons and neutrons) and baryonic matter. Mesons are routinely produced artificially in cyclotrons or other particle accelerators in the collisions of protons, antiprotons, or other particles. Higher-energy (more ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Switzerland
; rm, citad federala, links=no). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Lucerne, Neuchâtel, St. Gallen a.o.). , coordinates = , largest_city = Zurich , official_languages = , englishmotto = "One for all, all for one" , religion_year = 2022 , religion_ref = , religion = , demonym = , german: link=no, Schweizer/Schweizerin, french: link=no, Suisse/Suissesse, it, svizzero/svizzera or , rm, Svizzer/Svizra , government_type = Federal assembly-independent directorial republic , leader_title1 = Federal Council , leader_name1 = , leader_title2 = , leader_name2 = Viktor Rossi , legislature = Federal Assembly , upper_house = Counci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jungfraujoch
The Jungfraujoch (German: lit. "maiden saddle") is a saddle connecting two major 4000ers of the Bernese Alps: the Jungfrau and the Mönch. It lies at an elevation of above sea level and is directly overlooked by the rocky prominence of the Sphinx. The Jungfraujoch is a glacier saddle, on the upper snows of the Aletsch Glacier, and part of the Jungfrau-Aletsch area, situated on the boundary between the cantons of Bern and Valais, halfway between Interlaken and Fiesch. Since 1912, the Jungfraujoch has been accessible to tourists by the Jungfrau line, a railway from Interlaken and Kleine Scheidegg, running partly underground through a tunnel through the Eiger and Mönch. The Jungfraujoch railway station, at an elevation of is the highest in Europe. It lies east of the saddle, below the Sphinx station, and is connected to the Top of Europe building, which includes several panoramic restaurants, shops, exhibitions, and a post office. Several tunnels lead outside, where secured ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
