1. ENTROPY, THE FIRST AND SECOND LAWS OF THERMODYNAMICS AND THE LAW OF MAXIMUM ENTR The law of entropy, or the second law of thermodynamics, along with the first law of thermodynamics comprise the most fundamental laws of physics. http://www.entropylaw.com/

ALL ABOUT ENTROPY, THE LAWS OF THERMODYNAMICS, AND ORDER FROM DISORDER ENTROPYLAW.COM Foundations of Physics, Life and Cognition: Basic Texts, Reviews, Research Material The law of entropy , or the second law of thermodynamics , along with the first law of thermodynamics comprise the most fundamental laws of physics. Entropy (the subject of the second law) and energy (the subject of the first law) and their relationship are fundamental to an understanding not just of physics, but to life (biology, evolutionary theory, ecology) cognition (psychology) . According to the old view, the second law was viewed as a 'law of disorder'. The major revolution in the last decade is the recognition of the "law of maximum entropy production" or "MEP" and with it an expanded view of thermodynamics showing that the spontaneous production of order from disorder is the expected consequence of basic laws . This site provides basic texts, articles, links, and references that take the reader from the classical views of thermodynamics in simple terms, to today's new and richer understanding. Entropy and Energy: The Laws of Thermodynamics The Entropy Law (The Second Law of Thermodynamics) The Entropy Law as Law of Disorder (Boltzmann's Interpretation: The Statistical View) Order from Disorder: ... The Consequences of the New More Complete Understanding of the Entropy Law for Biology, Psychology, and Culture or Social Theories

2. Kids Puzzles, Childrens Educational Toys & Educational Games At entropy, you will find a wonderful selection of wooden toys, educational toys, puzzles and games at our online shop. Quick delivery Australia-wide. http://www.entropy.com.au/

3. Entropy - Wikipedia, The Free Encyclopedia entropy is a thermodynamic property that is a measure of the energy not available for work in a thermodynamic process. It is defined by the second law of http://en.wikipedia.org/wiki/Entropy

Entropy From Wikipedia, the free encyclopedia Jump to: navigation search This article is about entropy in thermodynamics. For entropy in information theory, see Entropy (information theory) . For other uses, see Entropy (disambiguation) For a generally accessible and less technical introduction to the topic, see Introduction to entropy Ice melting in a warm room is a common example of increasing entropy, note 1 described in 1862 by Rudolf Clausius as an increase in the disgregation of the molecules of the body of ice. Entropy articles Introduction History Classical Statistical Entropy is a thermodynamic property that is a measure of the energy not available for work in a thermodynamic process . It is defined by the second law of thermodynamics . In the microscopic interpretation of statistical mechanics , entropy expresses the disorder or randomness of the constituents of a thermodynamic system or, analogously, the availability of accessible quantum mechanical states . A closed system always tends towards achieving a state with a maximum of entropy. From a thermodynamic point of view, machines are energy conversion devices. Thus, such devices can only be driven by convertible energy. The term

4. Entropy (information Theory) - Wikipedia, The Free Encyclopedia In information theory, entropy is a measure of the uncertainty associated with a random variable. The term by itself in this context usually refers to the http://en.wikipedia.org/wiki/Entropy_(information_theory)

Entropy (information theory) From Wikipedia, the free encyclopedia Jump to: navigation search This article is about the Shannon entropy in information theory . For other uses, see Entropy (disambiguation) In information theory entropy is a measure of the uncertainty associated with a random variable . The term by itself in this context usually refers to the Shannon entropy , which quantifies, in the sense of an expected value , the information contained in a message, usually in units such as bits . Equivalently, the Shannon entropy is a measure of the average information content one is missing when one does not know the value of the random variable. The concept was introduced by Claude E. Shannon in his 1948 paper " A Mathematical Theory of Communication Shannon's entropy represents an absolute limit on the best possible lossless compression of any communication, under certain constraints: treating messages to be encoded as a sequence of independent and identically-distributed random variables Shannon's source coding theorem shows that, in the limit, the average length of the shortest possible representation to encode the messages in a given alphabet is their entropy divided by the logarithm of the number of symbols in the target alphabet.

5. Entropy One of the ideas involved in the concept of entropy is that nature tends from order to disorder in isolated systems. This tells us that the right hand box http://hyperphysics.phy-astr.gsu.edu/hbase/therm/entrop.html

6. Entropy | Define Entropy At Dictionary.com (on a macroscopic scale) a function of thermodynamic variables, as temperature, pressure, or composition, that is a measure of the energy that is not http://dictionary.reference.com/browse/entropy

7. Entropy - The Panda's Thumb entropy – scene from an eroding shoreline on Lake Champlain, Vermont, demonstrating a naturally ordered stone deposition being disarrayed by the natural disorder of the tree http://pandasthumb.org/archives/2010/09/entropy.html

8. Entropy | An Open Access Journal From MDPI Webbased journal intended for collegiate audiences. Provides links to web-based articles as well as some basic lessons on entropy. http://www.mdpi.com/journal/entropy

Login Register mdpi.com Journals A-Z ... Open Access Policy Title / Keyword Journal all Administrative Sciences Algorithms Animals Atmosphere Biomolecules Biosensors Brain Sciences Cancers Challenges Coatings Diversity Energies Entropy Forests Future Internet Games Genes IJERPH IJMS Information Insects JFB JLPEA Marine Drugs Materials Membranes Micromachines Minerals Molbank Molecules Nutrients Pharmaceuticals Pharmaceutics Polymers Religions Remote Sensing Sensors Sustainability Symmetry Toxins Viruses Water Volume Author Section Issue Article Type all Addendum Article Book Review Books Received Case Report Commentary Communication Correction Discussion Editorial Letter Opinion Review Short Note Technical Note Special Issue all Advances in Information Theory Advances in Statistical Mechanics Advances in Thermodynamics Biophysical Economics Complexity of Human Language and Cognition Concepts of Entropy Concepts of Entropy and Their Applications - Papers presented at the Meeting at University of Melbourne, 26 November - 11 December 2007 Configurational Entropy Cybersemiotics—Integration of the informational and semiotic paradigms of cognition and communication Distance in Information and Statistical Physics Emergence in Chemical Systems Emergence of Information in Evolutionary Processes Entropies of Polymers Entropy and Friction Entropy and Information Entropy Generation in Thermal Systems and Processes Entropy Generation Minimization Entropy in Genetics and Computational Biology Entropy in Model Reduction Entropy in Quantum Gravity Exergy: Analysis and Applications Facets of Entropy - Papers presented at the workshop in Copenhagen (24-26 October 2007)

9. Entropy : May The Funk Be With You en tro py (n trp) n. pl. en tro pies. 1. Symbol S For a closed thermodynamic system, a quantitative measure of the amount of thermal energy not available to do work. http://www.entropyfunk.com/

10. Entropy - Scholarpedia Figure 1 In a naive analogy, energy in a physical system may be compared to water in lakes, rivers and the sea. Only the water that is above the sea level can be used to do http://www.scholarpedia.org/article/Entropy

Entropy From Scholarpedia Tomasz Downarowicz (2007), Scholarpedia, 2(11):3901. doi:10.4249/scholarpedia.3901 revision #73247 [ link to/cite this article Hosting and maintenance of this article is sponsored by Brain Corporation Curator: Dr. Tomasz Downarowicz, Institute of Mathematics Computer Science, Wroclaw University of Technology, Poland Figure 1: In a naive analogy, energy in a physical system may be compared to water in lakes, rivers and the sea. Only the water that is above the sea level can be used to do work (e.g. propagate a turbine). Entropy represents the water contained in the sea. In classical physics, the entropy of a physical system is proportional to the quantity of energy no longer available to do physical work . Entropy is central to the second law of thermodynamics , which states that in an isolated system any activity increases the entropy. In quantum mechanics von Neumann entropy extends the notion of entropy to quantum systems by means of the density matrix. In probability theory , the entropy of a random variable measures the uncertainty about the value that might be assumed by the variable.

11. Entropy (1999) - IMDb Rating 6.0/10 from 1,499 users http://www.imdb.com/title/tt0156515/

IMDb Search All Titles TV Episodes Names Companies Keywords Characters Videos Quotes Bios Plots Go More Register Login Help ... More at IMDbPro Entropy (I) 104 min - Drama Romance X Users: 1,499 votes 57 reviews Critics: 9 reviews Director: Phil Joanou Writer: Phil Joanou Release Date: 27 November 1999 (Japan) 8 photos 1 news article Cast Cast overview, first billed only: Stephen Dorff Jake Walsh Stella (as Judith Godreche) Kelly Macdonald Pia Lauren Holly Claire Jon Tenney Kevin Frank Vincent Sal Paul Guilfoyle Andy Hector Elizondo The Chairman Bray Poor Wyatt Kathryn Erbe Evan (as Katheryn Herbe) Shannon Fiedler Isabelle Zach Tyler Lukas (as Zachary Tyler) Jim Gaffigan Bucky Dominic Hawksley Pierre Drena De Niro Waitress Full cast and crew Storyline Written by Anonymous Plot Summary Add Synopsis Plot Keywords: Model Film Studio Slow Motion Scene Flashback ... See more Taglines: Making a movie is not as easy as falling in love.

12. Entropy - Definition And More From The Free Merriam-Webster Dictionary Definition of word from the MerriamWebster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. http://www.merriam-webster.com/dictionary/entropy

13. Entropy -- From Wolfram MathWorld Oct 11, 2010 In physics, the word entropy has important physical implications as the amount of disorder of a system. In mathematics, a more abstract http://mathworld.wolfram.com/Entropy.html

Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics ... Interactive Demonstrations Entropy In physics, the word entropy has important physical implications as the amount of "disorder" of a system. In mathematics, a more abstract definition is used. The (Shannon) entropy of a variable is defined as bits, where is the probability that is in the state , and is defined as if . The joint entropy of variables is then defined by SEE ALSO: Differential Entropy Information Theory Kolmogorov Entropy Kolmogorov-Sinai Entropy ... Topological Entropy REFERENCES: Ellis, R. S. Entropy, Large Deviations, and Statistical Mechanics. New York: Springer-Verlag, 1985. Havil, J. "A Measure of Uncertainty." §14.1 in Gamma: Exploring Euler's Constant. Princeton, NJ: Princeton University Press, pp. 139-145, 2003. Khinchin, A. I. Mathematical Foundations of Information Theory. New York: Dover, 1957. Lasota, A. and Mackey, M. C. Chaos, Fractals, and Noise: Stochastic Aspects of Dynamics, 2nd ed. New York: Springer-Verlag, 1994. Ott, E. "Entropies." §4.5 in

14. Entropy Summary | BookRags.com entropy. entropy summary with 4 pages of encyclopedia entries, research information, and more. http://www.bookrags.com/research/entropy-woc/

15. Entropy On The World Wide Web Specializing in the uses of entropy in statistics and science. http://www.math.uni-hamburg.de/home/gunesch/entropy.html

Entropy on the World Wide Web The chinese character for entropy These pages are now maintained by Roland Gunesch (Mathematics, University of Hamburg). Claude Shannon , Inventor of information theory and pioneer of entropy theory, dies at age 84. Read this obituary that appeared in the New York Times. Welcome! The purpose of these pages is to promote the appreciation, understanding, and applications of entropy in its many forms. Here you will find: (for each of the following areas) a brief overview of the role of entropy, a collection of links to on-line expository articles and textbooks, and suggestions for further off-line reading: information and coding theory dynamical systems logic and the theory of algorithms statistical inference and prediction ... the humanities and social sciences links to relevant journals information about entropy-related conferences links to relevant research groups links to entropy-related software and more Credits These pages were originally created by Chris Hillman. He gets credit for creating practically all of the content seen here. Since these pages were not originally created by me (R.G.) but by Chris Hillman (see "Credits" above), I have not verified all information contained in these pages. Also, I might in principle disagree with any opinion or judgement stated in these pages. Should you believe that anything you see here is incorrect, I am happy to receive your comments.

16. Entropy In thermodynamics, entropy is an extensive state function that accounts for the effects of irreversibility in thermodynamic systems, particularly in heat engines during an http://www.sciencedaily.com/articles/e/entropy.htm

Science Reference Share Blog Print Email Bookmark Entropy In thermodynamics, entropy is an extensive state function that accounts for the effects of irreversibility in thermodynamic systems, particularly in heat engines during an engine cycle. See also: Thermodynamics Energy Technology Physics Nuclear Energy ... Fuel Cells While the concept of energy is central to the first law of thermodynamics, which deals with the conservation of energy, the concept of entropy is central to the second law of thermodynamics, which deals with physical processes and whether they occur spontaneously. Spontaneous changes occur with an increase in entropy. Entropy change has often been defined as a change to a more disordered state at a microscopic level. In recent years, entropy has been interpreted in terms of the "dispersal" of energy. For more information about the topic Entropy , read the full article at Wikipedia.org , or see the following related articles: Laws of thermodynamics read more Statistical mechanics read more ... read more Note: This page refers to an article that is licensed under the GNU Free Documentation License . It uses material from the article Entropy at Wikipedia.org. See the

17. Entropy An International and Interdisciplinary Journal of entropy and Information Sciences, publishes reviews, regular research papers and short notes. http://www.mdpi.org/entropy/

This journal moved to a new homepage: http://www.mdpi.com/journal/entropy In October 2008 MDPI launched a new publication platform at www.mdpi.com .All the papers published in MDPI journals are available at www.mdpi.com. However, papers published up to end of September 2008 also have a copy at www.mdpi.org The last version of this homepage at www.mdpi.org prepared in October 2008 is available: Link Last change: 19 March 2009 by Mr. Dietrich Rordorf, E-mail: rordorf@mdpi.org

18. Entropy: Definition From Answers.com n. , pl. , pies . ( Symbol S ) For a closed thermodynamic system, a quantitative measure of the amount of thermal energy not available to do work. A measure of the disorder http://www.answers.com/topic/entropy

19. Entropy And Gibbs Free Energy entropy and Gibbs free energy, ΔG = ΔH TΔS. This page is for students who have wrestled with some problems involving the Gibbs equation, ΔG = ΔH - TΔS, and think that http://2ndlaw.oxy.edu/gibbs.html

Notice 2ndlaw.com is now http://2ndlaw.oxy.edu . Please update your links and bookmarks. Entropy D H in it has nothing to do with entropy. Prof: The whole Gibbs relationship or function is about entropy change. S: G/T = H/T - S. Whaddya mean, look like entropy change? S is q/T. P: Sure, but q is the transfer of thermal energy (that we often, too loosely, call "heat"). So isn’t H really a "q", a thermal energy transfer? Also, G/T has the form of an energy transfer/T just as that H/T does. All Ss! Therefore, the Gibbs equation really is "Entropy change (1) = Entropy change (2) – Entropy change (3)" S: Darn right. Divide by T and I admit everything in that Gibbs looks like entropy change. But that just confuses me. What happens to the fight between enthalpy and entropy if enthalpy turns into entropy? Do I have to learn another mysterious phys chem equation? P: No way, no mystery. Let’s give it the full court press – you’ll be amazed at how neat everything comes out (because now that "fight" between enthalpy and entropy will make sense). It'll give you a much better feel for entropy itself. To start, let’s think about a system in which a chemical reaction is occurring. There can be thermal energy transferred ("heat") from the system to its surroundings or vice versa. Well, let’s really think big by saying that nothing else is happening in the entire universe but the reaction in our system. Look at the entropy changes involved:

20. Entropy And The Second Law Of Thermodynamics Novel, informal, qualitative but substantial introduction to entropy and the second law of thermo, concluding with the Gibbs equation as all entropy . http://www.2ndlaw.com

Notice 2ndlaw.com is now http://2ndlaw.oxy.edu . Please update your links and bookmarks. ENTROPY and the Second Law of Thermodynamics! Entropy and the second law of thermodynamics The second law of thermodynamics is a tendency Obstructions to the secondlaw make life possible The second law of thermodynamics and evolution Entropy and Gibbs free energy, G = H -T S These are five big ideas involving the second law of thermo. Questions about them came from readers of http://secondlaw.oxy.edu However, that Web site already has so many pages that this new site was written. Chemistry students: If you're in a time bind or an exam is coming up, read http://entropysite.oxy.edu/students_approach.html for a shorter approach to understanding the second law and entropy. Frank L. Lambert, Professor Emeritus Occidental College, Los Angeles, CA 90041 Academic and professional biography February 2008 Next page – "Entropy and the second law of thermodynamics" The Encyclopedia Britannica gave this site an Internet Guide Award and allows a direct search link here to its Concise Encyclopedia Articles. Thus, albeit in brief summaries, you can access the entire span of knowledge in the Britannica all of science, the humanities, and practical matters in the world.

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