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Charles Barkla
Charles Glover Barkla (7 June 1877 – 23 October 1944) was an English physicist who received the Nobel Prize in Physics in 1917 for his discovery of characteristic X-rays. Life Barkla was born in Widnes, England, to John Martin Barkla, a secretary for the Atlas Chemical Company, and Sarah Glover, daughter of a watchmaker. Barkla studied at the Liverpool Institute and proceeded to Liverpool University with a County Council Scholarship and a Bibby Scholarship. Barkla initially studied Mathematics but later specialised in Physics under Sir Oliver Lodge. During the absence of Oliver Lodge due to ill health, Barkla replaced him in lectures. In 1899 Barkla was admitted to Trinity College, Cambridge, with an 1851 Research Fellowship from the Royal Commission for the Exhibition of 1851, to work in the Cavendish Laboratory under the physicist J. J. Thomson (discoverer of the electron). During his first two years at Cambridge, under the directions of Thomson, Barkla studied the ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Widnes
Widnes ( ) is an Industrial city, industrial town in the Borough of Halton, Cheshire, England, which at the 2021–2022 United Kingdom censuses, 2021 census had a population of 62,400. Historic counties of England, Historically in Lancashire, it is on the northern bank of the River Mersey where the estuary narrows to form the Runcorn Gap#Runcorn Gap, Runcorn Gap. Directly to the south across the Mersey is the town of Runcorn. Upstream to the east is Warrington, and 4 miles downstream to the west is Speke, a suburb of Liverpool. Before the Industrial Revolution, Widnes was a small settlement on marsh and moorland. In 1847, the chemist and industrialist John Hutchinson (industrialist), John Hutchinson established a chemical factory at Spike Island, Widnes, Spike Island. The town grew in population and rapidly became a major centre of the chemical industry. The demand for labour was met by large-scale immigration from Ireland, Poland, Lithuania and Wales. The town continues to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liverpool Institute For Boys
The Liverpool Institute High School for Boys was an all-boys grammar school in the English port city of Liverpool. The school had its origins in 1825 but occupied different premises while the money was found to build a dedicated building on Mount Street. The institute was first known as the Liverpool Mechanics' School of Arts. In 1832 the name was shortened to the Liverpool Mechanics' Institution. The façade of the listed building, the entrance hall and modified school hall remain after substantial internal reconstruction was completed in the early 1990s. School history in brief Its initial primary purpose as a mechanics' institute (one of many established about this time throughout the country) was to provide educational opportunities, mainly through evening classes, for working men. Lectures for the general public were also provided of wide interest covering topics ranging from Arctic exploration to Shakespeare and philosophy. Luminaries like Charles Dickens, Anthony Troll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-ray Spectroscopy
X-ray spectroscopy is a general term for several Spectroscopy, spectroscopic techniques for characterization of materials by using x-ray radiation. Characteristic X-ray spectroscopy When an electron from the inner shell of an atom is excited by the energy of a photon, it moves to a higher energy level. When it returns to the low energy level, the energy it previously gained by excitation is emitted as a photon of one of the wavelengths uniquely characteristic of the element. Analysis of the X-ray emission spectrum produces qualitative results about the elemental composition of the specimen. Comparison of the specimen's spectrum with the spectra of samples of known composition produces quantitative results (after some mathematical corrections for absorption, fluorescence and atomic number). Atoms can be excited by a high-energy beam of charged particles such as electrons (in an electron microscope for example), protons (see PIXE) or a beam of X-rays (see X-ray fluorescence, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Philosophy
Natural philosophy or philosophy of nature (from Latin ''philosophia naturalis'') is the philosophical study of physics, that is, nature and the physical universe, while ignoring any supernatural influence. It was dominant before the development of modern science. From the ancient world (at least since Aristotle) until the 19th century, ''natural philosophy'' was the common term for the study of physics (nature), a broad term that included botany, zoology, anthropology, and chemistry as well as what is now called physics. It was in the 19th century that the concept of science received its modern shape, with different subjects within science emerging, such as astronomy, biology, and physics. Institutions and communities devoted to science were founded. Isaac Newton's book '' Philosophiæ Naturalis Principia Mathematica'' (1687) (English: ''Mathematical Principles of Natural Philosophy'') reflects the use of the term ''natural philosophy'' in the 17th century. Even in the 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King's College London
King's College London (informally King's or KCL) is a public university, public research university in London, England. King's was established by royal charter in 1829 under the patronage of George IV of the United Kingdom, King George IV and the Arthur Wellesley, 1st Duke of Wellington, Duke of Wellington. In 1836, King's became one of the two founding colleges of the University of London. It is one of the Third-oldest university in England debate, oldest university-level institutions in England. In the late 20th century, King's grew through a series of mergers, including with Queen Elizabeth College and Chelsea College of Science and Technology (1985), the Institute of Psychiatry (1997), the United Medical and Dental Schools of Guy's and St Thomas' Hospitals and the Florence Nightingale School of Nursing and Midwifery (in 1998). King's operates across five main campuses: the historic Strand Campus in central London, three other Thames-side campuses (Guy's, St Thomas' an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philosophical Transactions Of The Royal Society
''Philosophical Transactions of the Royal Society'' is a scientific journal published by the Royal Society. In its earliest days, it was a private venture of the Royal Society's secretary. It was established in 1665, making it the second journal in the world exclusively devoted to science, after the '' Journal des sçavans'', and therefore also the world's longest-running scientific journal. It became an official society publication in 1752. The use of the word ''philosophical'' in the title refers to natural philosophy, which was the equivalent of what would now be generally called ''science''. Current publication In 1887 the journal expanded and divided into two separate publications, one serving the physical sciences ('' Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences'') and the other focusing on the life sciences ('' Philosophical Transactions of the Royal Society B: Biological Sciences''). Both journals now publish theme ... [...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 review, 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 2022 ''Journal Citation Reports'' (with an ascribed impact factor of 50.5), 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 the autumn of 1869, ''Nature'' was first circulated by Norman Lockyer and Alexander MacMillan (publisher), Alexander MacMillan as a public forum for scientific innovations. The mid-20th century facilitated an editorial expansion for the j ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lionel Wilberforce
Lionel Robert Wilberforce (18 April 1861 – 1 April 1944) was a British physicist. He is best known for the invention of the Wilberforce pendulum, which exhibits a curious motion in which periods of purely rotational oscillation gradually alternate with periods of purely up and down oscillation. Life Lionel Robert Wilberforce was born in Munich, Kingdom of Bavaria to his mother Fanny Flash and his father who was Edward Wilberforce (1834–1914). Edward was a grandson of William Wilberforce through Robert Wilberforce. He was educated in England and graduated from Trinity College, Cambridge in 1884. He worked with J. J. Thomson at the Cavendish Laboratory in Cambridge and was appointed lecturer in 1900. In the same year he became professor of physics at University College, Liverpool (later University of Liverpool The University of Liverpool (abbreviated UOL) is a Public university, public research university in Liverpool, England. Founded in 1881 as University Colleg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electromagnetic Radiation
In physics, electromagnetic radiation (EMR) is a self-propagating wave of the electromagnetic field that carries momentum and radiant energy through space. It encompasses a broad spectrum, classified by frequency or its inverse, wavelength, ranging from radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. All forms of EMR travel at the speed of light in a vacuum and exhibit wave–particle duality, behaving both as waves and as discrete particles called photons. Electromagnetic radiation is produced by accelerating charged particles such as from the Sun and other celestial bodies or artificially generated for various applications. Its interaction with matter depends on wavelength, influencing its uses in communication, medicine, industry, and scientific research. Radio waves enable broadcasting and wireless communication, infrared is used in thermal imaging, visible light is essential for vision, and higher-energy radiation, such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-ray
An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays. Roughly, X-rays have a wavelength ranging from 10 Nanometre, nanometers to 10 Picometre, picometers, corresponding to frequency, frequencies in the range of 30 Hertz, petahertz to 30 Hertz, exahertz ( to ) and photon energies in the range of 100 electronvolt, eV to 100 keV, respectively. X-rays were discovered in 1895 in science, 1895 by the German scientist Wilhelm Röntgen, Wilhelm Conrad Röntgen, who named it ''X-radiation'' to signify an unknown type of radiation.Novelline, Robert (1997). ''Squire's Fundamentals of Radiology''. Harvard University Press. 5th edition. . X-rays can penetrate many solid substances such as construction materials and living tissue, so X-ray radiography is widely used in medical diagnostics (e.g., checking for Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Choir Of King's College, Cambridge
The Choir of King's College, Cambridge is an English Anglican choir. It was created by Henry VI of England, King Henry VI, who founded King's College, Cambridge, in 1441, to provide daily singing in his King's College Chapel, Cambridge, Chapel, which remains the main task of the choir to this day. Today the choir is directed by Daniel Hyde (organist), Daniel Hyde and derives much of its fame from the Nine Lessons and Carols, Festival of Nine Lessons and Carols, broadcast worldwide to millions on Christmas Eve every year, and the TV service Carols from King's which accompanies it. The choir commissions a carol from a contemporary composer for each year's festival. History Early history The original statutes specified that the choir should consist of ten chaplains, six clerks (lay singers) and 16 choristers who were to be "poor and needy boys, of sound condition and honest conversation ... knowing competently how to read and sing". Perhaps recognising the workload placed upon the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cavendish Laboratory
The Cavendish Laboratory is the Department of Physics at the University of Cambridge, and is part of the School of Physical Sciences. The laboratory was opened in 1874 on the New Museums Site as a laboratory for experimental physics and is named after the British chemist and physicist Henry Cavendish. The laboratory has had a huge influence on research in the disciplines of physics and biology. The laboratory moved to its present site in West Cambridge in 1974. , 30 Cavendish researchers have won Nobel Prizes. Notable discoveries to have occurred at the Cavendish Laboratory include the discovery of the electron, neutron, and structure of DNA. Founding The Cavendish Laboratory was initially located on the New Museums Site, Free School Lane, in the centre of Cambridge. It is named after British chemist and physicist Henry Cavendish for contributions to science and his relative William Cavendish, 7th Duke of Devonshire, who served as chancellor of the university and donated fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
