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Nothing Comes From Nothing
Nothing comes from nothing ( gr, οὐδὲν ἐξ οὐδενός; la, ex nihilo nihil fit) is a philosophical dictum first argued by Parmenides. It is associated with ancient Greek cosmology, such as is presented not just in the works of Homer and Hesiod, but also in virtually every internal system: there is no break in-between a world that did not exist and one that did, since it could not be created in the first place. Parmenides The idea that "nothing comes from nothing", as articulated by Parmenides, first appears in Aristotle's ''Physics'': The above, in a translation based on the John Burnet translation, appears as follows: Lucretius The Roman poet and philosopher Lucretius expressed this principle in his first book of (''On the Nature of Things'') He then continues on discussing how matter is required to make matter and that objects cannot spring forth without reasonable cause. Early modern literature In Shakespeare's play ''King Lear'' Act 1 Scene 1, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dictum
In general usage, a dictum ( in Latin; plural dicta) is an authoritative or dogmatic statement. In some contexts, such as legal writing and church cantata librettos, ''dictum'' can have a specific meaning. Legal writing In United States legal terminology, a ''dictum'' is a statement of opinion considered authoritative (although not binding), given the recognized authoritativeness of the person who pronounced it."dictum", Black's Law Dictionary (8th ed. 2004); C.J.S. Courts §§ 142-143. There are multiple subtypes of ''dicta'', although due to their overlapping nature, legal practitioners in the U.S. colloquially use ''dictum'' to refer to any statement by a court the scope of which extends beyond the issue before the court. ''Dicta'' in this sense are not binding under the principle of '' stare decisis'', but tend to have a strong persuasive effect, by virtue of having been stated in an authoritative decision, or by an authoritative judge, or both. These subtypes include: * ''di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacuum Fluctuation
In quantum physics, a quantum fluctuation (also known as a vacuum state fluctuation or vacuum fluctuation) is the temporary random change in the amount of energy in a point in space, as prescribed by Werner Heisenberg's uncertainty principle. They are minute random fluctuations in the values of the fields which represent elementary particles, such as electric and magnetic fields which represent the electromagnetic force carried by photons, W and Z fields which carry the weak force, and gluon fields which carry the strong force. Vacuum fluctuations appear as virtual particles, which are always created in particle-antiparticle pairs. Since they are created spontaneously without a source of energy, vacuum fluctuations and virtual particles are said to violate the conservation of energy. This is theoretically allowable because the particles annihilate each other within a time limit determined by the uncertainty principle so they are not directly observable. The uncertainty prin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Vilenkin
Alexander Vilenkin (russian: Алекса́ндр Виле́нкин; uk, Олександр Віленкін; born 13 May 1949) is the Leonard Jane Holmes Bernstein Professor of Evolutionary Science and Director of the Institute of Cosmology at Tufts University. A theoretical physicist who has been working in the field of cosmology for 25 years, Vilenkin has written over 260 publications. Biography As an undergraduate studying physics at the University of Kharkiv, Vilenkin turned down a job offer from the KGB, causing him to be blacklisted from pursuing a graduate degree.MENCONI, DAVID.TO FIND HERSELF AS A MUSICIAN, ALINA SIMONE FIRST HAD TO FIND HER RUSSIAN ROOTS", Tufts Magazine, 2010.Freedman, David H.The Mediocre Universe, Discover Magazine, 01 February 1996. Then he was drafted into a building brigade and later worked at the state zoo as a night watchman while conducting physics research in his spare time.STOBER, DAN.Physicist: Universes pop up ad infinitum, Stanford New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawking Radiation
Hawking radiation is theoretical black body radiation that is theorized to be released outside a black hole's event horizon because of relativistic quantum effects. It is named after the physicist Stephen Hawking, who developed a theoretical argument for its existence in 1974. Hawking radiation is a purely kinematic effect that is generic to Lorentzian geometries containing event horizons or local apparent horizons. Hawking radiation reduces the mass and rotational energy of black holes and is therefore also theorized to cause black hole evaporation. Because of this, black holes that do not gain mass through other means are expected to shrink and ultimately vanish. For all except the smallest black holes, this would happen extremely slowly. The radiation temperature is inversely proportional to the black hole's mass, so micro black holes are predicted to be larger emitters of radiation than larger black holes and should dissipate faster. Overview Black holes are astrophysica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Particle
A virtual particle is a theoretical transient particle that exhibits some of the characteristics of an ordinary particle, while having its existence limited by the uncertainty principle. The concept of virtual particles arises in the perturbation theory of quantum field theory where interactions between ordinary particles are described in terms of exchanges of virtual particles. A process involving virtual particles can be described by a schematic representation known as a Feynman diagram, in which virtual particles are represented by internal lines. Virtual particles do not necessarily carry the same mass as the corresponding real particle, although they always conserve energy and momentum. The closer its characteristics come to those of ordinary particles, the longer the virtual particle exists. They are important in the physics of many processes, including particle scattering and Casimir forces. In quantum field theory, forces—such as the electromagnetic repulsion or a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Albert
David Z. Albert (born 1954) is Frederick E. Woodbridge Professor of Philosophy and Director of the MA Program in The Philosophical Foundations of Physics at Columbia University in New York. Education and career He received his bachelor's degree in physics from Columbia College (1976) and his PhD in theoretical physics from The Rockefeller University (1981) under Professor Nicola Khuri. Afterwards he worked with Yakir Aharonov of Tel Aviv University. He has spent most of his career in the philosophy department at Columbia University, although he has also been a frequent visiting professor of philosophy at Rutgers University. In 2015, he was elected a Fellow of the American Academy of Arts & Sciences. Philosophical work Albert has published three books, ''Quantum Mechanics and Experience'' (1992), ''Time and Chance'' (2000) and ''After Physics'' (2015), as well as numerous articles on quantum mechanics. His books have been both praised and criticized for their informal, conv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bantam Books
Bantam Books is an American publishing house owned entirely by parent company Random House, a subsidiary of Penguin Random House; it is an imprint of the Random House Publishing Group. It was formed in 1945 by Walter B. Pitkin, Jr., Sidney B. Kramer, and Ian and Betty Ballantine, with funding from Grosset & Dunlap and Curtis Publishing Company. It has since been purchased several times by companies including National General, Carl Lindner's American Financial and, most recently, Bertelsmann; it became part of Random House in 1998, when Bertelsmann purchased it to form Bantam Doubleday Dell. It began as a mass market publisher, mostly of reprints of hardcover books, with some original paperbacks as well. It expanded into both trade paperback and hardcover books, including original works, often reprinted in house as mass-market editions. History The company was failing when Oscar Dystel, who had previously worked at Esquire and as editor on Coronet magazine was hired in 1954 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Vacuum
In quantum field theory, the quantum vacuum state (also called the quantum vacuum or vacuum state) is the quantum state with the lowest possible energy. Generally, it contains no physical particles. The word zero-point field is sometimes used as a synonym for the vacuum state of a quantized field which is completely individual. According to present-day understanding of what is called the vacuum state or the quantum vacuum, it is "by no means a simple empty space". According to quantum mechanics, the vacuum state is not truly empty but instead contains fleeting electromagnetic waves and particles that pop into and out of the quantum field. The QED vacuum of quantum electrodynamics (or QED) was the first vacuum of quantum field theory to be developed. QED originated in the 1930s, and in the late 1940s and early 1950s it was reformulated by Feynman, Tomonaga, and Schwinger, who jointly received the Nobel prize for this work in 1965. For a historical discussion, see for exa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michio Kaku
Michio Kaku (, ; born January 24, 1947) is an American theoretical physics, theoretical physicist, futurist, and popular science, popularizer of science (science communicator). He is a professor of theoretical physics in the City College of New York and CUNY Graduate Center. Kaku is the author of several books about physics and related topics and has made frequent appearances on radio, television, and film. He is also a regular contributor to his own blog, as well as other popular media outlets. For his efforts to bridge science and science fiction, he is a 2021 Sir Arthur Clarke Award, Sir Arthur Clarke Lifetime Achievement Awardee. His books ''Physics of the Impossible'' (2008), ''Physics of the Future'' (2011), ''The Future of the Mind'' (2014), and The God Equation, ''The God Equation: The Quest for a Theory of Everything'' (2021) became The New York Times Best Seller list, ''New York Times'' best sellers. Kaku has hosted several television specials for the BBC, the Discovery ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawrence Krauss
Lawrence Maxwell Krauss (born May 27, 1954) is an American theoretical physicist and cosmologist who previously taught at Arizona State University, Yale University, and Case Western Reserve University. He founded ASU's Origins Project, now called ASU Interplanetary Initiative, to investigate fundamental questions about the universe and served as the project's director. Krauss is an advocate for public understanding of science, public policy based on sound empirical data, scientific skepticism, and science education. An anti-theist, Krauss seeks to reduce the influence of what he regards as superstition and religious dogma in popular culture. Krauss is the author of several bestselling books, including ''The Physics of Star Trek'' (1995) and ''A Universe from Nothing'' (2012), and chaired the ''Bulletin of the Atomic Scientists'' Board of Sponsors. Upon investigating allegations about sexual misconduct by Krauss, ASU determined that Krauss had violated university policy and di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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