Why CAPM and index models are believed to provide more accurate data than Markovitz portfolio theory?
Q. It is said that CAPM and index models provide more accurate data than Markoviz portfolio theory which is based on past return (past returns are believed to be unreliable guides to expected future returns). How come do index models provide more accurate data if they are based on beta and beta is the change in the stock return per unit change in the market return (which is calculated using historical data as well)?
Asked by Ponchik - Sun Dec 6 22:03:43 2009 - - 1 Answers - 0 Comments
A. Very good question! The weakness of the Modern Portfolio Theory (MPT) is that it is heavily based on past data, using standard deviation to measure variability or risk. But this is only valid when returns follow a normal distribution, and is therefore very poor in predicting extreme outcomes, making it less realistic. Standard MPT models put a very low probability on market slides, 1 slide every 200 years. Slides seem to happen every few years, causing the theory to understate risk and leading investors to load up on risky assets like equities (further increasing market risk). The CAPM on the other hand, is based less on historical data but still uses beta which is derived from past performance. A famous 1992 study published in the… [cont.]
Answered by Matt - Sun Dec 6 23:03:29 2009
Q. It is said that CAPM and index models provide more accurate data than Markoviz portfolio theory which is based on past return (past returns are believed to be unreliable guides to expected future returns). How come do index models provide more accurate data if they are based on beta and beta is the change in the stock return per unit change in the market return (which is calculated using historical data as well)?
Asked by Ponchik - Sun Dec 6 22:03:43 2009 - - 1 Answers - 0 Comments
A. Very good question! The weakness of the Modern Portfolio Theory (MPT) is that it is heavily based on past data, using standard deviation to measure variability or risk. But this is only valid when returns follow a normal distribution, and is therefore very poor in predicting extreme outcomes, making it less realistic. Standard MPT models put a very low probability on market slides, 1 slide every 200 years. Slides seem to happen every few years, causing the theory to understate risk and leading investors to load up on risky assets like equities (further increasing market risk). The CAPM on the other hand, is based less on historical data but still uses beta which is derived from past performance. A famous 1992 study published in the… [cont.]
Answered by Matt - Sun Dec 6 23:03:29 2009
What were two of the early atomic models that contributed to the formulation of the modern atomic theory?
Q. What were two of the early atomic models that contributed to the formulation of the modern atomic theory???
Asked by dreamer5577 - Mon Dec 14 10:37:08 2009 - - 1 Answers - 0 Comments
A. Saturn model by H Nagoaka, describing atoms with rings of electrons like the rings of planet Saturn. And Rutherford's nuclear atom, mostly space in which electrons traveled like planets around the sun.
Answered by Fred - Mon Dec 14 10:50:15 2009
Q. What were two of the early atomic models that contributed to the formulation of the modern atomic theory???
Asked by dreamer5577 - Mon Dec 14 10:37:08 2009 - - 1 Answers - 0 Comments
A. Saturn model by H Nagoaka, describing atoms with rings of electrons like the rings of planet Saturn. And Rutherford's nuclear atom, mostly space in which electrons traveled like planets around the sun.
Answered by Fred - Mon Dec 14 10:50:15 2009
what is the general relationship among frames of reference, models, theory, and hypothesis?
Q. what is the general relationship among frames of reference, models, theory, and hypothesis?
Asked by Stephanie A - Sun Jan 27 03:37:31 2008 - - 2 Answers - 0 Comments
A. models, theory, and hypothesis all seek to prove a point based on a specific frame of reference or viewpoint. the viewpoint usually is a concept or widely held notion and the model, theory or hypothesis seeks to prove it or disprove it.
Answered by Pop N Fresh - Sun Jan 27 03:48:15 2008
Q. what is the general relationship among frames of reference, models, theory, and hypothesis?
Asked by Stephanie A - Sun Jan 27 03:37:31 2008 - - 2 Answers - 0 Comments
A. models, theory, and hypothesis all seek to prove a point based on a specific frame of reference or viewpoint. the viewpoint usually is a concept or widely held notion and the model, theory or hypothesis seeks to prove it or disprove it.
Answered by Pop N Fresh - Sun Jan 27 03:48:15 2008
Which of the following three statments are true for the kinetic theory model of gases ?
Q. Which of the following three statments are true for the kinetic theory model of gases ? a) volume of particles are assumed to be small compared to distances between them b) particles are in constant straight-line motion c) forces of attraction between particles are assumed neglible d) collisions between particles, and between particles and the container wall are both elastic collisions e) particles rarely, if ever, collide with the container walls f) velocity of particles is proportional to the celcius temperature
Asked by Danny Z - Mon Oct 29 22:38:26 2007 - - 3 Answers - 0 Comments
A. C) true A) true D) true
Answered by archerpro101 - Mon Oct 29 22:42:02 2007
Q. Which of the following three statments are true for the kinetic theory model of gases ? a) volume of particles are assumed to be small compared to distances between them b) particles are in constant straight-line motion c) forces of attraction between particles are assumed neglible d) collisions between particles, and between particles and the container wall are both elastic collisions e) particles rarely, if ever, collide with the container walls f) velocity of particles is proportional to the celcius temperature
Asked by Danny Z - Mon Oct 29 22:38:26 2007 - - 3 Answers - 0 Comments
A. C) true A) true D) true
Answered by archerpro101 - Mon Oct 29 22:42:02 2007
What is the relationship between models and theories?
Q. What is the relationship between models and theories? Please explain im so lost.
Asked by scottifan10 - Tue Sep 8 22:51:14 2009 - - 1 Answers - 0 Comments
A. In most cases they tend to be indistinguishable. However technically a model doesn't have to specify the reasoning behind the situation it is modelling, it can be just a simplification of what is happening. A theory generally explains the "why?" of a model. For example, Bohr has a "model" of the atom because he just states that electrons have discrete energy levels but doesn't explain why. Quantum mechanics provides a theory of the electrons within the atom, because it explains their discrete energy levels.
Answered by iqof300 - Tue Sep 8 23:11:32 2009
Q. What is the relationship between models and theories? Please explain im so lost.
Asked by scottifan10 - Tue Sep 8 22:51:14 2009 - - 1 Answers - 0 Comments
A. In most cases they tend to be indistinguishable. However technically a model doesn't have to specify the reasoning behind the situation it is modelling, it can be just a simplification of what is happening. A theory generally explains the "why?" of a model. For example, Bohr has a "model" of the atom because he just states that electrons have discrete energy levels but doesn't explain why. Quantum mechanics provides a theory of the electrons within the atom, because it explains their discrete energy levels.
Answered by iqof300 - Tue Sep 8 23:11:32 2009
What are the Positive and Negative aspect of Kinked demand curve model theory of oligopoly?
Q. The kinked demand theory of oligopoly is the assumption of rivals are likely of matching a price increase not decrease, the oligopoly believe in the theory that they face a downward sloping demand curve which is kinked at the current price, what i wanted to know is what are the positive and negative aspect of the kinked demand curve? Why does oligopolists have to start at the equilibriun price and output even if the profit maximization can be reach at the equilibrium P&Q.
Asked by Rosyanne - Tue Nov 7 09:57:01 2006 - - 4 Answers - 0 Comments
A. There are no positive and negative aspects. Kinked demand curve is a theory, not a fact. It explains very well why prices in oligopolistic industries tend to be stable and why price decreases by one oligopolist are usually matched by others, while price increases are usually not. It does not, however, explain how an industry becomes an oligopoly...
Answered by NC - Tue Nov 7 10:44:59 2006
Q. The kinked demand theory of oligopoly is the assumption of rivals are likely of matching a price increase not decrease, the oligopoly believe in the theory that they face a downward sloping demand curve which is kinked at the current price, what i wanted to know is what are the positive and negative aspect of the kinked demand curve? Why does oligopolists have to start at the equilibriun price and output even if the profit maximization can be reach at the equilibrium P&Q.
Asked by Rosyanne - Tue Nov 7 09:57:01 2006 - - 4 Answers - 0 Comments
A. There are no positive and negative aspects. Kinked demand curve is a theory, not a fact. It explains very well why prices in oligopolistic industries tend to be stable and why price decreases by one oligopolist are usually matched by others, while price increases are usually not. It does not, however, explain how an industry becomes an oligopoly...
Answered by NC - Tue Nov 7 10:44:59 2006
Health Beliefs Model and the Theory of Planned Behaviour- could someone please explain the difference to me?
Q. Also, does anybody know anything about Weiner's attributional model? I am looking at involving these models in my honours dissertation but i can't really work out the finer details that distinguish them. -- Ta.
Asked by miss.muffett - Thu Feb 21 07:56:14 2008 - - 1 Answers - 0 Comments
A. They're both theories of health behaviour...that's the main similarity. Basically the health belief model suggests that people will engage in health behaviours based on four factors: perceived susceptibility (to a health threat), perceived severity (of the health threat), benefits and barriers (of getting rid of the health threat), and cues to action. Then if you include an individual's 'self-efficacy' to those four factors, you get the Protection Motivation Theory of Health. On the other hand there is the Theory of Reasoned Action which is based on one's 'attitudes' and 'subjective norms'. Add 'self-efficacy' to this theory and voila you have the Theory of Planned Behaviour. Sorry I don't know about that Weiner's Attributional Model yet. [cont.]
Answered by daph_0444 - Thu Feb 21 08:42:28 2008
Q. Also, does anybody know anything about Weiner's attributional model? I am looking at involving these models in my honours dissertation but i can't really work out the finer details that distinguish them. -- Ta.
Asked by miss.muffett - Thu Feb 21 07:56:14 2008 - - 1 Answers - 0 Comments
A. They're both theories of health behaviour...that's the main similarity. Basically the health belief model suggests that people will engage in health behaviours based on four factors: perceived susceptibility (to a health threat), perceived severity (of the health threat), benefits and barriers (of getting rid of the health threat), and cues to action. Then if you include an individual's 'self-efficacy' to those four factors, you get the Protection Motivation Theory of Health. On the other hand there is the Theory of Reasoned Action which is based on one's 'attitudes' and 'subjective norms'. Add 'self-efficacy' to this theory and voila you have the Theory of Planned Behaviour. Sorry I don't know about that Weiner's Attributional Model yet. [cont.]
Answered by daph_0444 - Thu Feb 21 08:42:28 2008
what is the difference between a leadership model and leadership theory?
Q. which comes first, the model or the theory?
Asked by i_squeeze - Thu Jul 10 02:35:28 2008 - - 1 Answers - 0 Comments
A. Theory gives you the instructions how to be a good leader but model gives you an example of it and you are able to see actually how good leader looks like.
Answered by samra civoremo - Thu Jul 10 05:31:07 2008
Q. which comes first, the model or the theory?
Asked by i_squeeze - Thu Jul 10 02:35:28 2008 - - 1 Answers - 0 Comments
A. Theory gives you the instructions how to be a good leader but model gives you an example of it and you are able to see actually how good leader looks like.
Answered by samra civoremo - Thu Jul 10 05:31:07 2008
What are the communication theories and models?
Q. kindly include some theories about communication and a short description of it.
Asked by Rendell - Sun Jun 28 08:40:49 2009 - - 1 Answers - 0 Comments
A. this is an excellent article to start you off - use the links and references for more detail
Answered by im back - Thu Jul 2 10:41:27 2009
Q. kindly include some theories about communication and a short description of it.
Asked by Rendell - Sun Jun 28 08:40:49 2009 - - 1 Answers - 0 Comments
A. this is an excellent article to start you off - use the links and references for more detail
Answered by im back - Thu Jul 2 10:41:27 2009
Do you have a book TOCFE *Theory of constructrains for educatiob) Models?
Q. Do you have a book TOCFE *Theory of constructrains for educatiob) Models?
Asked by jhjab j - Tue Mar 25 05:29:35 2008 - - 1 Answers - 0 Comments
A. You keep on asking this question and I would think that any possible answers are limited by you inability to spell correctly the title of the book..
Answered by BARROWMAN - Wed Mar 26 06:35:05 2008
Q. Do you have a book TOCFE *Theory of constructrains for educatiob) Models?
Asked by jhjab j - Tue Mar 25 05:29:35 2008 - - 1 Answers - 0 Comments
A. You keep on asking this question and I would think that any possible answers are limited by you inability to spell correctly the title of the book..
Answered by BARROWMAN - Wed Mar 26 06:35:05 2008
Does Creationist Hugh Ross intend to eventually publish the testable model he proposes in "More Than a Theory"?
Q. Yes, I understand that his book emphasizes the importance of creating a testable model for Biblical Creationism Theory and he discusses some of its characteristics. But has Ross ever said whether he is likely to publish such a model himself and/or when such a publishable theory will be published in the foreseeable future?
Asked by Logician - Sun Jun 13 17:17:32 2010 - - 3 Answers - 0 Comments
A. Page 244 of "More Than a Theory" has the test scores of science predictions from 2006. The RTB creation model had 48 predictions for 2006 fulfilled. The natural evolution had only one prediction fulfilled in 2006. Hugh Ross has published models. Check out
Answered by Booth - Sun Jun 13 17:39:30 2010
Q. Yes, I understand that his book emphasizes the importance of creating a testable model for Biblical Creationism Theory and he discusses some of its characteristics. But has Ross ever said whether he is likely to publish such a model himself and/or when such a publishable theory will be published in the foreseeable future?
Asked by Logician - Sun Jun 13 17:17:32 2010 - - 3 Answers - 0 Comments
A. Page 244 of "More Than a Theory" has the test scores of science predictions from 2006. The RTB creation model had 48 predictions for 2006 fulfilled. The natural evolution had only one prediction fulfilled in 2006. Hugh Ross has published models. Check out
Answered by Booth - Sun Jun 13 17:39:30 2010
How did Democritus come up with his atomic theory/model?
Q. How did Democritus come up with his atomic theory/model?
Asked by islaboy671 - Sun Nov 8 06:16:48 2009 - - 1 Answers - 0 Comments
A. he was wondering if u cut a stick in half then cut that in half again could u keep on cutting it forever.he reasoned that u would eventually come to the smallest grain of matter-the atom.the name comes from atomos which is greek for uncuttable
Answered by andrew - Sun Nov 8 06:31:59 2009
Q. How did Democritus come up with his atomic theory/model?
Asked by islaboy671 - Sun Nov 8 06:16:48 2009 - - 1 Answers - 0 Comments
A. he was wondering if u cut a stick in half then cut that in half again could u keep on cutting it forever.he reasoned that u would eventually come to the smallest grain of matter-the atom.the name comes from atomos which is greek for uncuttable
Answered by andrew - Sun Nov 8 06:31:59 2009
If the theory of evolution was rejected by science, what other theory would replace it?
Q. If the theory of evolution were proven to be false, would science accept it without a better model? All models that are rejected, are usually replaced by another model. For example, steady state theory was replaced by the big bang theory, and now is being modified into a sort of bubble bang theory. But if evolution were proven false, then the only other model is a miracle, and that is not scientific. So don't be surprised if evolution is never proven false. It's up to the individual to believe if God created life, or not.
Asked by The Bible (gives Hope) - Fri Sep 4 00:19:09 2009 - - 18 Answers - 0 Comments
A. It is easy to accept the fact that life was a miracle. Humans need to know how and why things happen, so God is a convenient truth. Science may never find out the reasons why or how we exist, but we will surely never know the truth if we continue to believe in vampires, lycans, and biblical stories that were passed down by generations of preachers that have never personally spoke to god or Jesus. Tell me why God blessed the Meditteranian area with his almighty religion and love, but never to the rest of the world? The world was touched not by God or Jesus himself, but by their followers holding guns. Tell me the logic of our god.. and if you can't, then ask yourself what is the grounds of your beliefs.
Answered by CJ - Fri Sep 4 01:00:13 2009
Q. If the theory of evolution were proven to be false, would science accept it without a better model? All models that are rejected, are usually replaced by another model. For example, steady state theory was replaced by the big bang theory, and now is being modified into a sort of bubble bang theory. But if evolution were proven false, then the only other model is a miracle, and that is not scientific. So don't be surprised if evolution is never proven false. It's up to the individual to believe if God created life, or not.
Asked by The Bible (gives Hope) - Fri Sep 4 00:19:09 2009 - - 18 Answers - 0 Comments
A. It is easy to accept the fact that life was a miracle. Humans need to know how and why things happen, so God is a convenient truth. Science may never find out the reasons why or how we exist, but we will surely never know the truth if we continue to believe in vampires, lycans, and biblical stories that were passed down by generations of preachers that have never personally spoke to god or Jesus. Tell me why God blessed the Meditteranian area with his almighty religion and love, but never to the rest of the world? The world was touched not by God or Jesus himself, but by their followers holding guns. Tell me the logic of our god.. and if you can't, then ask yourself what is the grounds of your beliefs.
Answered by CJ - Fri Sep 4 01:00:13 2009
what r six early models proposed for the atomic theory?
Q. what r six early models proposed for the atomic theory?
Asked by toyamakingit4da06 - Thu Sep 25 08:21:48 2008 - - 1 Answers - 0 Comments
Q. what r six early models proposed for the atomic theory?
Asked by toyamakingit4da06 - Thu Sep 25 08:21:48 2008 - - 1 Answers - 0 Comments
How does the mathematically modelling in Super String theory, actually describe what matter really is?
Q. It seems like we end up with many different mathematical models that seem to fit some parts of how we think the system works, without us getting any nearer to the true nature of matter. Tried reading articles on string theory, really hoped someone might have a novel/imaginative way of explaining how to picture other dimensions. It's usually at that stage my brain develops a need for either food/drink or painkillers. I just feel that the complicated theories are so removed from our normal reality, that it's virtually impossible to experimentally verify them. If the theories infered some new interaction which we could could devise a test for, it would all seem more believable.
Asked by David R - Mon Jul 24 13:02:50 2006 - - 11 Answers - 0 Comments
A. There is some thinking that it doesn't help much. In fact, some scientists are beginning to think that Super String Theory is a failure and point out that we really don't know any more about the nature of matter than we did several decades ago.
Answered by Spot! - Mon Jul 24 20:39:33 2006
Q. It seems like we end up with many different mathematical models that seem to fit some parts of how we think the system works, without us getting any nearer to the true nature of matter. Tried reading articles on string theory, really hoped someone might have a novel/imaginative way of explaining how to picture other dimensions. It's usually at that stage my brain develops a need for either food/drink or painkillers. I just feel that the complicated theories are so removed from our normal reality, that it's virtually impossible to experimentally verify them. If the theories infered some new interaction which we could could devise a test for, it would all seem more believable.
Asked by David R - Mon Jul 24 13:02:50 2006 - - 11 Answers - 0 Comments
A. There is some thinking that it doesn't help much. In fact, some scientists are beginning to think that Super String Theory is a failure and point out that we really don't know any more about the nature of matter than we did several decades ago.
Answered by Spot! - Mon Jul 24 20:39:33 2006
Where can i find full text for Learning theories & Models of teaching???
Q. tried every where but could not find text that can make me understand theories of learning- skinner, thorndike, pavlov, hull, tolman & gagne and Models of teaching- bruner, piaget, glacer, hildataba and Asubel. is there any site where i can read them all in detail. plz help!!!
Asked by Neelu - Fri Mar 28 16:43:42 2008 - - 1 Answers - 0 Comments
A. No but there is the Intro to Psychology book. You can find this book in the library also. Good Luck!
Answered by hiccups - Fri Mar 28 16:50:24 2008
Q. tried every where but could not find text that can make me understand theories of learning- skinner, thorndike, pavlov, hull, tolman & gagne and Models of teaching- bruner, piaget, glacer, hildataba and Asubel. is there any site where i can read them all in detail. plz help!!!
Asked by Neelu - Fri Mar 28 16:43:42 2008 - - 1 Answers - 0 Comments
A. No but there is the Intro to Psychology book. You can find this book in the library also. Good Luck!
Answered by hiccups - Fri Mar 28 16:50:24 2008
Are there any theories or models attempting to explain why mankind seems to be?
Q. living at odds with nature while every other living thing exists in a way that ensures the earths survival?
Asked by Guardian - Sun Oct 21 18:55:35 2007 - - 4 Answers - 0 Comments
A. Humans tend to be careless, lazy, reckless and greedy. Thus, some of us toss a bottle into the ocean. Others save money by releasing factory waste into a river. Sometimes, presidents favoring large Corporations allow lumbering and oil rigs in National Parks and public lands. Some people care about the environment. Others sneer and call environmentalists "treehuggers" or worse. When it is all gone and the once green and glorious planet is dark and useless, some of us will cry over our own stupidity and others will shrug and say it is God's will...because, if they can't blame it on Bill Clinton, they blame it on God!
Answered by Me, Too - Sun Oct 21 19:29:12 2007
Q. living at odds with nature while every other living thing exists in a way that ensures the earths survival?
Asked by Guardian - Sun Oct 21 18:55:35 2007 - - 4 Answers - 0 Comments
A. Humans tend to be careless, lazy, reckless and greedy. Thus, some of us toss a bottle into the ocean. Others save money by releasing factory waste into a river. Sometimes, presidents favoring large Corporations allow lumbering and oil rigs in National Parks and public lands. Some people care about the environment. Others sneer and call environmentalists "treehuggers" or worse. When it is all gone and the once green and glorious planet is dark and useless, some of us will cry over our own stupidity and others will shrug and say it is God's will...because, if they can't blame it on Bill Clinton, they blame it on God!
Answered by Me, Too - Sun Oct 21 19:29:12 2007
Do economical models use age distribution and population growth frequency as variables?
Q. Is there a model that considers the effects of youth bulge theory? I ve always wondered if economical models use these variables in there simulations. I myself live in a third world country (Honduras) and believe in the effects the youth bulge theory predicts. It would be great if it is in fact they are included in economical models or simulations.
Asked by Ricardo H - Fri Nov 20 20:04:43 2009 - - 1 Answers - 0 Comments
A. Yes, development economist do use the Bulge theory to show the effect of population growth on development. There is a lot of material on this. So much I am not going to even try to summarize it all. Different opinions on this topic. So instead i will give you a book that has a chapter on that William Easterly: The Elusive Quest for Growth. You might be interested in chapter 5. But actually given were you live the whole book would be quit interesting.
Answered by SmithtoMalthus - Fri Nov 20 20:27:14 2009
Q. Is there a model that considers the effects of youth bulge theory? I ve always wondered if economical models use these variables in there simulations. I myself live in a third world country (Honduras) and believe in the effects the youth bulge theory predicts. It would be great if it is in fact they are included in economical models or simulations.
Asked by Ricardo H - Fri Nov 20 20:04:43 2009 - - 1 Answers - 0 Comments
A. Yes, development economist do use the Bulge theory to show the effect of population growth on development. There is a lot of material on this. So much I am not going to even try to summarize it all. Different opinions on this topic. So instead i will give you a book that has a chapter on that William Easterly: The Elusive Quest for Growth. You might be interested in chapter 5. But actually given were you live the whole book would be quit interesting.
Answered by SmithtoMalthus - Fri Nov 20 20:27:14 2009
What are the processes used to test and validate models and theories in Chemistry?
Q. What are the processes used to test and validate models and theories in Chemistry?
Asked by Morganita - Sun Mar 23 22:52:28 2008 - - 1 Answers - 0 Comments
A. The scientific method and specifically testing in a controlled environment: Here is a simplified scheme (1) Design an experiment (2) Calculate the expected results (3) Work in a controlled environment -- remove external influences -- use calibrated instruments -- instruments are clean and free of contaminants -- etc (4) Perform the experiment and record measures (type of molecules produced, temperature, concentration, ...) (5) Compare measures with expected results (6) The best test is when the experiments are performed by many laboratories in the world. this link summarizes the method:
Answered by Zeta1 - Sun Mar 23 23:34:29 2008
Q. What are the processes used to test and validate models and theories in Chemistry?
Asked by Morganita - Sun Mar 23 22:52:28 2008 - - 1 Answers - 0 Comments
A. The scientific method and specifically testing in a controlled environment: Here is a simplified scheme (1) Design an experiment (2) Calculate the expected results (3) Work in a controlled environment -- remove external influences -- use calibrated instruments -- instruments are clean and free of contaminants -- etc (4) Perform the experiment and record measures (type of molecules produced, temperature, concentration, ...) (5) Compare measures with expected results (6) The best test is when the experiments are performed by many laboratories in the world. this link summarizes the method:
Answered by Zeta1 - Sun Mar 23 23:34:29 2008
Why r both the photon & electromagnetic wave models accepted as a single theory & y was it hard to accept?
Q. Why r both the photon & electromagnetic wave models accepted as a single theory & y was it hard to accept?
Asked by JUDY T - Mon Feb 5 23:19:33 2007 - - 1 Answers - 0 Comments
A. It is because of something called wave-particle duality of light. It basically says that light can exist as either a particle or a wave, and has properties of both, but not at the same time. And so, light is a particle, the photon, as well as a wave, the electromagnetic wave. This is so hard to accept because it completely goes against all our intuition and our classical definitions of particles nad waves, but then again, that is what quantum mechanics does. It doesn't make any sense at all, with what quantum entanglement or the double-slit experiment, but when it comes down to the actual mathematical equations and phenomena it starts to make sense.
Answered by kz - Mon Feb 5 23:24:26 2007
Q. Why r both the photon & electromagnetic wave models accepted as a single theory & y was it hard to accept?
Asked by JUDY T - Mon Feb 5 23:19:33 2007 - - 1 Answers - 0 Comments
A. It is because of something called wave-particle duality of light. It basically says that light can exist as either a particle or a wave, and has properties of both, but not at the same time. And so, light is a particle, the photon, as well as a wave, the electromagnetic wave. This is so hard to accept because it completely goes against all our intuition and our classical definitions of particles nad waves, but then again, that is what quantum mechanics does. It doesn't make any sense at all, with what quantum entanglement or the double-slit experiment, but when it comes down to the actual mathematical equations and phenomena it starts to make sense.
Answered by kz - Mon Feb 5 23:24:26 2007
From Yahoo Answer Search: 'theory models'
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Validity of classical nucleation . theory. for Ising . models. . Seunghwa Ryu1 and Wei Cai2 1Department of Physics, Stanford University, Stanford, California 94305, USA 2Department of Mechanical Engineering, Stanford University, Stanford, ...
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