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Donald Hill Perkins
Donald Hill Perkins (15 October 1925 – 30 October 2022) was a British physicist and an emeritus professor at the University of Oxford. He achieved great success in the field of particle physics and was also known for his books. Perkins was born in 1925 and educated at Imperial College London. In 1945 he received his B.Sc. and 1948, a Ph.D. From 1949 he worked at Bristol University and in 1955/56 at the Lawrence Radiation Laboratory in Berkeley. In 1956 he received the post of reader in Bristol University. In 1963/64 he conducted research at CERN. In 1965 he became Oxford professor of elementary particle physics. There, under the leadership of Denys Wilkinson, he built, along with Ken W. Allen, the new Department of Nuclear Physics. In 1976/77 and 1983/84 he returned to CERN on sabbatical leave. In 1998 he retired and became Emeritus Fellow of St Catherine's College, Oxford. Achievements Perkins' earliest achievements include the discovery of the negative pion in cos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physicist
A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate causes of phenomena, and usually frame their understanding in mathematical terms. Physicists work across a wide range of research fields, spanning all length scales: from sub-atomic and particle physics, through biological physics, to cosmological length scales encompassing the universe as a whole. The field generally includes two types of physicists: experimental physicists who specialize in the observation of natural phenomena and the development and analysis of experiments, and theoretical physicists who specialize in mathematical modeling of physical systems to rationalize, explain and predict natural phenomena. Physicists can apply their knowledge towards solving practical problems or to developing new technologies (also known as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proton
A proton is a stable subatomic particle, symbol , H+, or 1H+ with a positive electric charge of +1 ''e'' elementary charge. Its mass is slightly less than that of a neutron and 1,836 times the mass of an electron (the proton–electron mass ratio). Protons and neutrons, each with masses of approximately one atomic mass unit, are jointly referred to as "nucleons" (particles present in atomic nuclei). One or more protons are present in the Atomic nucleus, nucleus of every atom. They provide the attractive electrostatic central force which binds the atomic electrons. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number (represented by the symbol ''Z''). Since each chemical element, element has a unique number of protons, each element has its own unique atomic number, which determines the number of atomic electrons and consequently the chemical characteristics of the element. The word ''proton'' is Greek language, G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fernand Holweck Medal And Prize
The Fernand Holweck Medal and Prize is a major European prize for Physics awarded jointly every year by the British Institute of Physics (IOP) and the Société Française de Physique (SFP). It is one of the four Grand Prix of the SFP and one of the four International Bilateral Awards of the IOP, consisting of a gold medal and a 3000€ cash prize. History The prize was established in 1945 as a memorial to Fernand Holweck and other French physicists who were persecuted or killed by the Nazis during the German occupation of France during World War II, from 1940 to 1945. It was originally a £150 prize. It is awarded for distinguished work in experimental physics (which reflects Holweck's scientific interest) or in theoretical physics which is closely related to experimentation. The Holweck Prize is awarded every year, alternately to a French physicist and a British or Irish physicist. In 1974 two awards were made to mark the centenaries of the two societies. Holweck Laureate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute Of Physics
The Institute of Physics (IOP) is a UK-based learned society and professional body that works to advance physics education, research and application. It was founded in 1874 and has a worldwide membership of over 20,000. The IOP is the Physical Society for the UK and Ireland and supports physics in education, research and industry. In addition to this, the IOP provides services to its members including careers advice and professional development and grants the professional qualification of Chartered Physicist (CPhys), as well as Chartered Engineer (CEng) as a nominated body of the Engineering Council. The IOP's publishing company, IOP Publishing, publishes 85 academic titles. History The Institute of Physics was formed in 1960 from the merger of the Physical Society, founded as the Physical Society of London in 1874, and the Institute of Physics, founded in 1918. The Physical Society of London had been officially formed on 14 February 1874 by Frederick Guthrie, follow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guthrie Medal And Prize
The Michael Faraday Medal and Prize is a gold medal awarded annually by the Institute of Physics in experimental physics. The award is made "for outstanding and sustained contributions to experimental physics." The medal is accompanied by a prize of £1000 and a certificate. Historical development * 1914-1965 Guthrie Lecture initiated to remember Frederick Guthrie, founder of the Physical Society (which merged with the Institute of Physics in 1960). * 1966-2007 Guthrie Medal and Prize (in response to changed conditions from when the lecture was first established). From 1992, it became one of the Institute's Premier Awards. * 2008–present Michael Faraday Medal and Prize Medalists and lecturers Faraday medalists * 2019 Roy Taylor, "For his extensive, internationally leading contributions to the development of spectrally diverse, ultrafast-laser sources and pioneering fundamental studies of nonlinear fibre optics that have translated to scientific and commercial appl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fellow Of The Royal Society
Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the judges of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural knowledge, including mathematics, engineering science, and medical science". Fellowship of the Society, the oldest known scientific academy in continuous existence, is a significant honour. It has been awarded to many eminent scientists throughout history, including Isaac Newton (1672), Michael Faraday (1824), Charles Darwin (1839), Ernest Rutherford (1903), Srinivasa Ramanujan (1918), Albert Einstein (1921), Paul Dirac (1930), Winston Churchill (1941), Subrahmanyan Chandrasekhar (1944), Dorothy Hodgkin (1947), Alan Turing (1951), Lise Meitner (1955) and Francis Crick (1959). More recently, fellowship has been awarded to Stephen Hawking (1974), David Attenborough (1983), Tim Hunt (1991), Elizabeth Blackburn (1992), Tim Berners-Lee (2001), Venki Ramakrishnan ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Sheffield
The University of Sheffield (informally Sheffield University or TUOS) is a public university, public research university in Sheffield, South Yorkshire, England. Its history traces back to the foundation of Sheffield Medical School in 1828, Firth College in 1879 and Sheffield Technical School in 1884. University College of Sheffield was subsequently formed by the amalgamation of the three institutions in 1897 and was granted a royal charter as University of Sheffield in 1905 by King Edward VII. Sheffield is formed from 50 academic departments which are organised into five faculties and an international faculty. The annual income of the institution for 2020–21 was £741 million, of which £163 million was from research grants and contracts, with an expenditure of £708.6 million. Sheffield ranks among the top 10 of UK universities for research grant funding, and it has become number one in the UK for income and investment in engineering research according to new data published by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Fowler
Peter Randall Fowler (born 9 June 1959) is an Australian golfer who plays on the PGA Tour of Australasia and European Senior Tour. Career Fowler was born in Hornsby, New South Wales. He turned professional in 1977 and won the Australian Open in 1983. He has spent a large part of his career playing on the European Tour, where he made the top one hundred on the Order of Merit every year from 1983 to 1993, with a best ranking of 22nd in 1989. His only European Tour win came at the 1993 BMW International Open in Germany. After struggling for form in through the mid and late nineties Fowler enjoyed something of an Indian summer between 2002 and 2004, returning to the top hundred for those three seasons, and recording his best finish in The Open Championship in 2003 when he came joint 22nd. Another career highlight for Fowler was winning the 1989 World Cup for Australia in partnership with Wayne Grady. In addition to the team title, Fowler won the prize for the best individual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proton Decay
In particle physics, proton decay is a hypothetical form of particle decay in which the proton decays into lighter subatomic particles, such as a neutral pion and a positron. The proton decay hypothesis was first formulated by Andrei Sakharov in 1967. Despite significant experimental effort, proton decay has never been observed. If it does decay via a positron, the proton's half-life is constrained to be at least years. According to the Standard Model, the proton, a type of baryon, is stable because baryon number (quark number) is conserved (under normal circumstances; see chiral anomaly for an exception). Therefore, protons will not decay into other particles on their own, because they are the lightest (and therefore least energetic) baryon. Positron emission and electron capture – forms of radioactive decay which sees a proton become a neutron – are not proton decay, since the proton interacts with other particles within the atom. Some beyond-the-Standard Model ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Chromodynamics
In theoretical physics, quantum chromodynamics (QCD) is the theory of the strong interaction between quarks mediated by gluons. Quarks are fundamental particles that make up composite hadrons such as the proton, neutron and pion. QCD is a type of quantum field theory called a non-abelian gauge theory, with symmetry group SU(3). The QCD analog of electric charge is a property called ''color''. Gluons are the force carriers of the theory, just as photons are for the electromagnetic force in quantum electrodynamics. The theory is an important part of the Standard Model of particle physics. A large body of experimental evidence for QCD has been gathered over the years. QCD exhibits three salient properties: * Color confinement. Due to the force between two color charges remaining constant as they are separated, the energy grows until a quark–antiquark pair is spontaneously produced, turning the initial hadron into a pair of hadrons instead of isolating a color charge. Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gargamelle
Gargamelle was a heavy liquid bubble chamber detector in operation at CERN between 1970 and 1979. It was designed to detect neutrinos and antineutrinos, which were produced with a beam from the Proton Synchrotron (PS) between 1970 and 1976, before the detector was moved to the Super Proton Synchrotron (SPS). In 1979 an irreparable crack was discovered in the bubble chamber, and the detector was decommissioned. It is currently part of the "Microcosm" exhibition at CERN, open to the public. Gargamelle is famous for being the experiment where neutral currents were discovered. Found in July 1973, neutral currents were the first experimental indication of the existence of the Z0 boson, and consequently a major step towards the verification of the electroweak theory. Gargamelle can refer to both the bubble chamber detector itself, or the high-energy physics experiment by the same name. The name itself is derived from a 16th-century novel by François Rabelais, ''The Life of G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
