The philosophical question "What is the meaning of life?" means different things to different people. The vagueness of the query is inherent in the word "meaning", which opens the question to many interpretations, such as: "What is the origin of life?", "What is the nature of life (and of the universe in which we live)?", "What is the significance of life?", "What is valuable in life?", and "What is the purpose of, or in, (one's) life?". These questions have resulted in a wide range of competing answers and arguments, from scientific ...

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Meaning of life - Popular beliefs Meaning of life - Scientific approaches and theories Meaning of life - Philosophical views
Meaning of life - Value as meaning Meaning of life - Atheist views Meaning of life - Existentialist views Meaning of life - Humanist views Meaning of life - Nihilist views Meaning of life - Positivist views Meaning of life - Pragmatist views Meaning of life - Transhumanist views
Meaning of life - Religious beliefs Meaning of life - Spiritual views Meaning of life - Humorous treatments
Meaning of life - General philosophy topics Meaning of life - General philosophy lists

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Meaning of life, Meaning of life - Popular beliefs, Meaning of life - Scientific approaches and theories, Meaning of life - Philosophical views, Meaning of life - Value as meaning, Meaning of life - Atheist views, Meaning of life - Existentialist views, Meaning of life - Humanist views, Meaning of life - Nihilist views, Meaning of life - Positivist views, Meaning of life - Pragmatist views, Meaning of life - Transhumanist views, Meaning of life - Religious beliefs, Meaning of life - Spiritual views, Meaning of life - Humorous treatments, Meaning of life - General philosophy topics, Meaning of life - General philosophy lists

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The formal basis for mean field theory is the Bogoliubov inequality. This inequality states that the free energy of a system with Hamiltonian has the following upper bound: where the average is taken over the equilibrium ensemble of the reference system with Hamiltonian . In the special case that the reference Hamiltonian is that of a non-interacting s ...

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Mean field theory, Mean field theory - Formal approach, Mean field theory - Example

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 Modern pantheism is often misunderstood. It has nothing to do with "pantheon" or "polytheism" (belief in many Gods). It is neither theism nor atheism, but transcends both. Its central tenet is that the universe is the ultimate reality, the ultimate object of reverence, while nature is a sacred part of the totality.

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The scientific method or scientific process is fundamental to scientific investigation and to the acquisition of new knowledge based upon physical evidence by the scientific community. Scientists use observations and reasoning to propose tentative explanations for phenomena, termed hypotheses. Under the working assumption of methodological materialism, observable events in the natural world (including the artificial works of humanity) are explained only by natural causes without assuming the existence or non-existence of the su ...

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Scientific method - Elements of scientific method
Scientific method - Characterizations Scientific method - Hypotheses development Scientific method - Predictions from the hypotheses Scientific method - Experiments
Scientific method - Evaluations and iterations
Scientific method - Testing and improvements Scientific method - Confirmations
Scientific method - Scope and goals Scientific method - Scientific communities
Scientific method - Peer review evaluations Scientific method - Reproduction and record-keeping
Scientific method - History Scientific method - Philosophical issues Scientific method - Scientific method and the practice of science Scientific method - Formal approaches Scientific method - Quotations Scientific method - Notes Scientific method - Historical references to scientific method

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A meaning is a set of thoughts that people take symbols to have. Meanings can do many things, such as provoke a certain idea, or denote a certain real-world entity. Meanings can be linguistic and non-linguistic. Linguistic meaning is any meaning that words and other items of language have. Non-linguistic meaning is whatever meaning can be conveyed without the use of language. Meanings can be presented through various different mediums, or vehicles of communication. The kind of medium that is used determines ...

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Meaning - Philosophical approaches
Meaning - Gottlob Frege Meaning - Saul Kripke Meaning - Meaning as use Meaning - Translation
Meaning - Linguistic approaches
Meaning - Semantics Meaning - Semiotics Meaning - Pragmatics

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Theory has a number of distinct meanings in different fields of knowledge, depending on the context and their methodologies. Theory - Etymology. The word ‘theory’ derives from the Greek ‘theorein’, which means ‘to look at’. According to some sources, it was used frequently in terms of ‘looking at’ a theatre stage, which may explain why sometimes the word ‘theory’ is used as something provisional or not completely resembling real. The term ‘theoria’ (a noun) was already used by ...

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Theory - Etymology Theory - Science
Theory - Models Theory - Types of theories Theory - Further explanation of a scientific theory Theory - Characteristics
Theory - Mathematics Theory - Other fields Theory - List of famous theories Theory - Reference

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The Atkins Nutritional Approach, popularly known as the Atkins Diet or just Atkins, is the most marketed and well-known of the low-carbohydrate diets. It was created by Dr. Robert Atkins (1930-2003) and popularized in a series of books, starting with Dr. Atkins' Diet Revolution in 1972. In his revised book, Dr. Atkins' New Diet Revolution, Atkins updated some of his ideas, but remained faithful to the original concepts. The Atkins franchise (i.e., the business formed to provide products serving peopl ...

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Atkins Nutritional Approach - Nature of the diet Atkins Nutritional Approach - Phases
Atkins Nutritional Approach - Induction Atkins Nutritional Approach - Ongoing weight loss Atkins Nutritional Approach - Pre-maintenance Atkins Nutritional Approach - Lifetime maintenance
Atkins Nutritional Approach - Popularity Atkins Nutritional Approach - Criticism Atkins Nutritional Approach - Views in favor of the diet Atkins Nutritional Approach - Misconceptions about the diet Atkins Nutritional Approach - Reference

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An approach slope is the path that an airplane follows on its final approach to land on a runway. It takes its name from the fact that this path is ideally a gentle downward slope. A commonly used approach slope is 3° from the horizontal. The term glide slope is often applied to mean approach slope. Although this is technically incorrect, it is now a standard part of aviation talk. The technical incorrectness arises because an aircraft aiming for a perfectly failsafe landing or one that is landing without engine power will use

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Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. Modern classification has its roots in the system of Carolus Linnaeus, who grouped species according to shared physical characteristics. These groupings have been revised since Linnaeus to improve consistency with the Darwinian principle of common descent. Molecular systematics, which uses genomic DNA analysis, has driven many recent revisions and is likely to continue to do so. Scientific class ...

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Scientific classification - Modern developments Scientific classification - Early systems
Scientific classification - Linnaeus
Scientific classification - Examples Scientific classification - Group suffixes

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The phlogiston theory is an obsolete scientific theory of combustion. It was developed by J. J. Becher late in the 17th century and was extended and popularized by Georg Ernst Stahl, who declared the rusting of metal to be a combustion process. Phlogiston theory - Theory. The theory holds that all flammable materials contain phlogiston (derived noun form of the Greek phlogistos, meaning flammable), a substance without color, odor, taste, or weight that is liberated in burning. Once burn ...

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Phlogiston theory - Theory Phlogiston theory - Challenge and demise Phlogiston theory - Bibliography

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Philosophy is a linguistic activity. Many philosophers including Plato, Augustine, Gottlob Frege, Ludwig Wittgenstein, J. L. Austin, John Searle, Jacques Derrida, W.V. Quine have concerned themselves with the problem of meaning. Meaning - Gottlob Frege. Modern philosophy of language began with the discussion of sense and reference in Gottlob Frege's essay Über Sinn und Bedeutung (now usually translated as On Sense and Reference). Frege noted that proper names present several problems with re ...

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Meaning, Meaning - Philosophical approaches, Meaning - Gottlob Frege, Meaning - Saul Kripke, Meaning - Meaning as use, Meaning - Translation, Meaning - Linguistic approaches, Meaning - Semantics, Meaning - Semiotics, Meaning - Pragmatics

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Linguistic strings can be made up of phenomena like words, phrases, and sentences, and each seems to have a different kind of meaning. Individual words all by themselves, such as the word "bachelor," have one kind of meaning, because they only seem to refer to some abstract concept. Phrases, such as "the brightest star in the sky", seem to be different from individual words, because they are complex symbols arranged into some order. There is also the meaning of whole sentences, such as "Barry is a bachelor", which is both a complex whole, and seems to ...

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Meaning, Meaning - Philosophical approaches, Meaning - Gottlob Frege, Meaning - Saul Kripke, Meaning - Meaning as use, Meaning - Translation, Meaning - Linguistic approaches, Meaning - Semantics, Meaning - Semiotics, Meaning - Pragmatics

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Since the time of Aristotle and up until the turn of the twentieth century, it was firmly held by science that the universe was eternal and unchanging. The discovery by Edwin Hubble of universal expansion in 1929 made the notion of a beginning and a possible end of the universe an important subject of scientific investigation. The Big Bang theory was developed by 1933 by Georges-Henri Lemaître. The opposing theory of a static universe was developed in 1948 by Fred Hoyle and called the Steady state theory of the universe. These ...

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Ultimate fate of the universe, Ultimate fate of the universe - Scientific theories, Ultimate fate of the universe - Closed universe, Ultimate fate of the universe - Open universe, Ultimate fate of the universe - Flat universe, Ultimate fate of the universe - End of universe theory, Ultimate fate of the universe - Infinite time but finite lifespan, Ultimate fate of the universe - Finite time and lifespan, Ultimate fate of the universe - Life in a mortal universe, Ultimate fate of the universe - No complete end, Ultimate fate of the universe - Temporary events, Ultimate fate of the universe - Observational constraints on theories, Ultimate fate of the universe - Popular culture

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For Oliver E. Williamson, the existence of firms derives from ‘asset specificity’ in production, where assets are specific to each other such that their value is much less in a second-best use. This causes problems if the assets are owned by different firms (eg purchaser and supplier), because it will lead to protracted bargaining concerning the gains from trade, because both agents are likely to become locked into a position where they are no longer competing with a (possibly large) number of agents in the entire market, and the incenti ...

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Theory of the firm, Theory of the firm - Transaction cost theory, Theory of the firm - Managerial and behavioural theories, Theory of the firm - Behavioural approach, Theory of the firm - Team production, Theory of the firm - Williamson's approach, Theory of the firm - Summary

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In the modern approach, one starts with a field extension L/K, and examines the group of field automorphisms of L/K. See the article on Galois groups for further explanation and examples. The connection between the two approaches is as follows. The coefficients of the polynomial in question should be chosen from the base field K. The top field L should be the field obtained by adjoining the roots of the polynomial in question to the base field. Any permutation of the roots which respects algebraic equations as described abov ...

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Galois theory, Galois theory - Application to classical problems, Galois theory - The permutation group approach to Galois theory, Galois theory - First example — a quadratic equation, Galois theory - Second example — somewhat trickier, Galois theory - The modern approach by field theory, Galois theory - Solvable groups and solution by radicals, Galois theory - The inverse Galois problem

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If we are given a polynomial, it may happen that some of the roots of the polynomial are connected by various algebraic equations. For example, it may turn out that for two of the roots, say A and B, the equation A2 + 5B3 = 7 holds. The central idea of Galois theory is to consider those permutations (or rearrangements) of the roots having the property that any algebraic equation satisfied by the roots is still satisfied after the roots have been permuted. An important proviso is ...

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Galois theory, Galois theory - Application to classical problems, Galois theory - The permutation group approach to Galois theory, Galois theory - First example — a quadratic equation, Galois theory - Second example — somewhat trickier, Galois theory - The modern approach by field theory, Galois theory - Solvable groups and solution by radicals, Galois theory - The inverse Galois problem

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The essential elements of a scientific method are iterations, recursions, interleavings and orderings of the following: Characterizations (Quantifications, observations and measurements) Hypotheses (theoretical, hypothetical explanations of observations and measurements) Predictions (reasoning including logical deduction from hypotheses and theories) Experi ...

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Scientific method, Scientific method - Elements of scientific method, Scientific method - Characterizations, Scientific method - Hypotheses development, Scientific method - Predictions from the hypotheses, Scientific method - Experiments, Scientific method - Evaluations and iterations, Scientific method - Testing and improvements, Scientific method - Confirmations, Scientific method - Scope and goals, Scientific method - Scientific communities, Scientific method - Peer review evaluations, Scientific method - Reproduction and record-keeping, Scientific method - History, Scientific method - Philosophical issues, Scientific method - Scientific method and the practice of science, Scientific method - Formal approaches, Scientific method - Quotations, Scientific method - Notes, Scientific method - Historical references to scientific method

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The scientific search for extraterrestrial life is being carried out in two different ways, directly and indirectly. Extraterrestrial life - Direct search. Scientists are directly searching for evidence of unicellular life within the solar system, carrying out studies on the surface of Mars and examining meteors that have fallen to Earth. A mission is also proposed to Europa, one of J ...

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Extraterrestrial life, Extraterrestrial life - Possible basis of extraterrestrial life, Extraterrestrial life - Biochemistry, Extraterrestrial life - Theoretical Evolution and Morphology, Extraterrestrial life - Beliefs in extraterrestrial life, Extraterrestrial life - Ancient and Early Modern ideas, Extraterrestrial life - Extraterrestrials and the Modern era, Extraterrestrial life - Scientific search for extraterrestrial life, Extraterrestrial life - Direct search, Extraterrestrial life - Indirect search, Extraterrestrial life - Extraterrestrial life in the Solar System, Extraterrestrial life - Dealing with extraterrestrial life, Extraterrestrial life - Related books and media

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Life extension - Anti-Aging Medicine. Although Alex Comfort was an anti-aging gerontologist ahead of his time, as was Bernard Strehler, other "old guard" biogerontologists vehemently deny that aging is a disease. Possibly the most prominent biogerontologist making this denial is Leonard Hayflick, who determined that fibroblasts are limited to around 50 cell divisions. Hayflick reasons that aging is an unavoidable consequence of entropy. Dr. Denham Harman spent years experimenting with antioxidants, an ...

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Life extension, Life extension - Strategies of Life Extension, Life extension - Anti-Aging Medicine, Life extension - Calorie Restriction, Life extension - SENS Strategies for Engineered Negligible Senescence, Life extension - Cryonics, Life extension - History of life extension and the Life Extension Movement, Life extension - Scientific Controversy about Life Extension, Life extension - Anti-Aging Medicine, Life extension - Calorie Restriction, Life extension - SENS Strategies for Engineered Negligible Senescence, Life extension - Cryonics, Life extension - Ethics and Politics of Life Extension, Life extension - Anti-Aging Medicine, Life extension - SENS Strategies for Engineered Negligible Senescence, Life extension - Cryonics, Life extension - Notes, Life extension - Books, Life extension - Scientific Journals

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