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Nicolás Cabrera
Nicolás Cabrera (1913–1989), was a Spanish physicist who did important work on the theories of crystal growth (specifically the Burton–Cabrera–Frank theory) and the oxidisation of metals. He was the son of another famous Spanish physicist Blas Cabrera and the father of American Physicist Blas Cabrera Navarro. He spent many years in exile during the Francoist State. He was Professor of the Department of physics in the University of Virginia, where he worked from 1952. He became known for his interests in engineering and material science. He founded the physics department and was a professor at the Autonomous University of Madrid (UAM), from 1971. He is considered to have given an impulse to the study of physics in Spain from the time of his return. For a time Javier Solana Francisco Javier Solana de Madariaga (; born 14 July 1942) is a Spanish physicist and PSOE politician. After serving in the Spanish government as Foreign Affairs Minister under Felipe González ... [...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 applie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystal
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations. The scientific study of crystals and crystal formation is known as crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification. The word ''crystal'' derives from the Ancient Greek word (), meaning both "ice" and "rock crystal", from (), "icy cold, frost". Examples of large crystals include snowflakes, diamonds, and table salt. Most inorganic solids are not crystals but polycrystals, i.e. many microscopic crystals fused together into a single solid. Polycrystals include most metals, rocks, ceramics, and ice. A third category of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxidisation
Redox (reduction–oxidation, , ) is a type of chemical reaction in which the oxidation states of substrate change. Oxidation is the loss of electrons or an increase in the oxidation state, while reduction is the gain of electrons or a decrease in the oxidation state. There are two classes of redox reactions: * ''Electron-transfer'' – Only one (usually) electron flows from the reducing agent to the oxidant. This type of redox reaction is often discussed in terms of redox couples and electrode potentials. * ''Atom transfer'' – An atom transfers from one substrate to another. For example, in the rusting of iron, the oxidation state of iron atoms increases as the iron converts to an oxide, and simultaneously the oxidation state of oxygen decreases as it accepts electrons released by the iron. Although oxidation reactions are commonly associated with the formation of oxides, other chemical species can serve the same function. In hydrogenation, C=C (and other) bonds ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metal
A metal (from Greek μέταλλον ''métallon'', "mine, quarry, metal") is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically ductile (can be drawn into wires) and malleable (they can be hammered into thin sheets). These properties are the result of the ''metallic bond'' between the atoms or molecules of the metal. A metal may be a chemical element such as iron; an alloy such as stainless steel; or a molecular compound such as polymeric sulfur nitride. In physics, a metal is generally regarded as any substance capable of conducting electricity at a temperature of absolute zero. Many elements and compounds that are not normally classified as metals become metallic under high pressures. For example, the nonmetal iodine gradually becomes a metal at a pressure of between 40 and 170 thousand times atmospheric pressure. Equally, some materials regarded as metals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blas Cabrera Felipe
Blas Cabrera y Felipe (May 20, 1878 – August 1, 1945) was a Spanish physicist. He worked in the domain of experimental physics with focus in the magnetic properties of matter. He is considered one of the greatest scientists of Spain and one of the founders of the study of physical sciences in his country. Biography Cabrera received his baccalaureate in La Laguna (Tenerife, Spain). He then moved to Madrid where he began studying law, following family tradition. He met at that time Santiago Ramón y Cajal, who convinced him to abandon law and study science. He graduated from the Universidad Central de Madrid (present day Complutense University of Madrid) in Physics and Mathematics, earning a doctorate in Physics in 1901 with thesis ''Sobre la Variación Diurna de la Componente Horizontal del Viento'' written under the supervision of Santiago Ramón y Cajal. He was an experimental physicist, and developed his interests mostly in the field of magnetic properties of matter, ach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blas Cabrera Navarro
Blas Cabrera Navarro (born September 21, 1946 in Paris, France) is a Stanley G. Wojcicki Professor of Physics at Stanford University best known for his experiment in search of magnetic monopoles. He is the son of Spanish physicist Nicolás Cabrera and the grandson of Blas Cabrera Felipe, also a Spanish physicist. Blas Cabrera received his B.S. from the University of Virginia in 1968 and in 1975 got his Ph.D. from Stanford University after defending his thesis ''The Use of Superconducting Shields for Generating Ultra Low Magnetic Field Regions and Several Related Experiments'', under advisors William M. Fairbank and William O. Hamilton. On the night of February 14, 1982, his detector recorded an event which had the perfect signature hypothesized for a magnetic monopole. After he published his discovery, a number of similar detectors were built by various research groups, and Cabrera's laboratory itself received a large grant to build an improved detector. However, no similar event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exile
Exile is primarily penal expulsion from one's native country, and secondarily expatriation or prolonged absence from one's homeland under either the compulsion of circumstance or the rigors of some high purpose. Usually persons and peoples suffer exile, but sometimes social entities like institutions (e.g. the papacy or a government) are forced from their homeland. In Roman law, ''exsilium'' denoted both voluntary exile and banishment as a capital punishment alternative to death. Deportation was forced exile, and entailed the lifelong loss of citizenship and property. Relegation was a milder form of deportation, which preserved the subject's citizenship and property. The term diaspora describes group exile, both voluntary and forced. "Government in exile" describes a government of a country that has relocated and argues its legitimacy from outside that country. Voluntary exile is often depicted as a form of protest by the person who claims it, to avoid persecution and prosecu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francoist State
Francoist Spain ( es, España franquista), or the Francoist dictatorship (), was the period of Spanish history between 1939 and 1975, when Francisco Franco ruled Spain after the Spanish Civil War with the title . After his death in 1975, Spain transitioned into a democracy. During this time period, Spain was officially known as the Spanish State (). The nature of the regime evolved and changed during its existence. Months after the start of the Spanish Civil War in July 1936, Franco emerged as the dominant rebel military leader and was proclaimed head of state on 1 October 1936, ruling a dictatorship over the territory controlled by the Nationalist faction. The 1937 Unification Decree, which merged all parties supporting the rebel side, led to Nationalist Spain becoming a single-party regime under the FET y de las JONS. The end of the war in 1939 brought the extension of the Franco rule to the whole country and the exile of Republican institutions. The Francoist dictatorshi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Professor
Professor (commonly abbreviated as Prof.) is an Academy, academic rank at university, universities and other post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin as a "person who professes". Professors are usually experts in their field and teachers of the highest rank. In most systems of List of academic ranks, academic ranks, "professor" as an unqualified title refers only to the most senior academic position, sometimes informally known as "full professor". In some countries and institutions, the word "professor" is also used in titles of lower ranks such as associate professor and assistant professor; this is particularly the case in the United States, where the unqualified word is also used colloquially to refer to associate and assistant professors as well. This usage would be considered incorrect among other academic communities. However, the otherwise unqualified title "Professor" designated with a capital let ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physics
Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. "Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Virginia
The University of Virginia (UVA) is a Public university#United States, public research university in Charlottesville, Virginia. Founded in 1819 by Thomas Jefferson, the university is ranked among the top academic institutions in the United States, with College admissions in the United States, highly selective admission. Set within the The Lawn, Academical Village, a World Heritage Site, UNESCO World Heritage Site, the university is referred to as a "Public Ivy" for offering an academic experience similar to that of an Ivy League university. It is known in part for certain rare characteristics among public universities such as #1800s, its historic foundations, #Honor system, student-run academic honor code, honor code, and Secret societies at the University of Virginia, secret societies. The original governing Board of Visitors included three List of presidents of the United States, U.S. presidents: Thomas Jefferson, Jefferson, James Madison, and James Monroe. The latter as si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autonomous University Of Madrid
The Autonomous University of Madrid ( es, Universidad Autónoma de Madrid; UAM), commonly known as simply la Autónoma, is a Spanish public university located in Madrid, Spain. The university was founded in 1968 alongside the Autonomous University of Barcelona, in Barcelona. UAM is widely respected as one of the most prestigious universities in Europe. According to the highly regarded QS World University Rankings 2022, UAM is ranked as the top university in Spain. The campus of the university spans a rural tract of , mostly around metropolitan Madrid. Founded in 1968, its main campus, Cantoblanco, is located near the cities of Alcobendas, San Sebastián de los Reyes and Tres Cantos. UAM's Cantoblanco Campus holds most of the university's facilities. It is located north of Madrid and has an extension of over . Of these, nearly are urbanised and about a third of them garden areas. UAM offers 94 doctorate programs in all of the universities studies. It also offers 88 master's deg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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