Paper Definition and 999 Threads

Hello, I am doing a PhD in computer science (on simulation and modeling) and my research is based on the work of a few physicists. I have written around 10 papers (journal, IEEE and other international conferences and local ones) on this topic. I normally add a contribution (let's say 4-5...

1905 paper "Does the Inertia of a Body Depend Upon its Energy-Content? In his 1905 paper Einstein uses a Taylor expansion and keeps only the first term (an approximation) to derive E=mc^2 which is good if v<<c but if v is not <<c then we need more terms. If we keep the first three terms then...

Does anyone of you have experience with making paper movies? :biggrin: The ones where you have a booklet with images and when you flick through it you have the illusion of a movie. I'm making a booklet and have the idea of making a moving worm in it, but I am wondering whether every page...

Does this paper prove GR emerge from LQG with matter? A common criticism of LQG is that despite intense research, no semiclassical limit has been shown to connect GR with LQG in the low energy limit. And hence, it is not even a candidate theory of quantum gravity. This paper...

Homework Statement Water is falling gently into a large tank at 0.2m^3s^-1 and leaves through a small hole in the bottom of the tank of area 0.05m^2. What is the water velocity as it leaves? How full is the tank in the steady state? Homework Equations Well if the rate of water...

Term Paper: "Is the brain immunologically privileged?" I have to write a term paper for my neuroscience class and the theme is "Is the brain immunologically privileged?". According to my professor I have a pretty nice introduction that explains the anatomical aspects of the brain that makes it...

I am an undergraduate with an article in peer review right now (first author of three) by one physics journal. I am also applying for grad schools at this time, and I wanted to know if there are any ethical issues or discouragements about mentioning the general contents or abstract of this paper...

I need to get this paper: "P. Erdős and R.J. Wilson, On the chromatic index of almost all graphs, J. Comb. Theory, Ser. B 23 (1977), 255-257" J. Comb. Theory is on ScienceDirect, but they only have the abstract online, and I can't find a hard copy of this journal in my library. Does anyone...

Hey guys, I have a problem in that I am just out of hospital after having to get a lungs transplant (i have cf). Anyway, i was not expecting it till next year but it came up suddenly and has messed up my studying. My college are willing to be flexible with me and have informed me that I have...

In the following link below, consider page 2, paragraph 2 ("To illustrate the ideas involved..."). The author Podolsky considers a particle with a 'single degree of freedom.' Then in eq. (6), he shows a true cartesian coordinate system. Isn't this an inconsistency with the paper? And as...

contrary to AGW theory. I have not yet read the actual study. http://bristol.ac.uk/news/2009/6649.html"

Ok, hopefully this is the right place to post about this. I'm writing a project on General Relativity and need access to a specific paper. I'm not very good at finding stuff online or in libraries. The paper is: Gowdy, R. H.: "Vacuum Spacetimes with Two-parameter Spacelike Isometry Groups and...

Hi everyone Long time since i posted something. (May be i have posted at the wrong place, Doc Al...feel free to move it) I am in my first year... Basically i will have to start writing research papers from the next year... But i am really interested to start from the first year... I...

Homework Statement If you take an 8.5in by 11in piece of paper and fold one corner over so it just touches the opposite edge as seen in figure (http://wearpete.com/myprob.jpg ). Find the value of x that makes the area of the right triangle A a maximum? Homework Equations A = 1/2(xy)...

Screening arXiv i found this really interesting paper by Requardt. altough i don't undestand it completely. i think his idea of emergent relativity and quantum mechanics is really good. It is also what my landsman Gerard 't Hooft proposes. Greetings John. http://arxiv.org/abs/0910.4017...

Lash Maitra is a postdoc in Loll's group at Utrecht. Her first paper just posted on arxiv was an eyeopener for me, so here's for sharing if you want: http://arxiv.org/abs/0910.2117 Can causal dynamical triangulations probe factor-ordering issues? R L Maitra 12 pages (Submitted on 12 Oct 2009)...

I've watched a documentary about jet engine. Is it really possible to just create something with just a piece of paper? Just using all the laws of physics then use it to construct something perfectly.

http://www.ncpa.org/sub/dpd/index.php?Article_ID=18512 Here's the short story: http://www.theregister.co.uk/2009/09/29/yamal_scandal/ And the long detailed one: http://bishophill.squarespace.com/blog/2009/9/29/the-yamal-implosion.html

Of these nine candidates, please indicate the paper or papers which you think will contibute most significantly to future research in 4D quantum gravity. Multiple choice is possible in the poll, so pick several if you wish. http://arxiv.org/abs/0909.4221 Ashtekar, Campiglia, Henderson...

http://www.qwantz.com/fanart/superman.pdf "It is our opinion that all of Superman's recognized powers can be unified if his power is the ability to manipulate, from atomic to kilometer length scales, the inertia of his own and any matter with which he is in contact." It has nice figures...

If you dip a paper towel into water, the water absorbs up the paper towel. These molecules are gaining height, and hence mgh is increasing. Where does the energy come from to lift the water molecules?

Hello. I'm a professional writer and editor but all of my experience has been in the commercial fields, so I have no formal physics or math background. I've always had a profound interest in physics and have kept up with "conceptual" advances just about as much as any layman can be expected...

I was browsing a list of recently published papers on arxiv.org, and I found this paper: Comprehensive Solution to the Cosmological Constant, Zero-Point Energy, and Quantum Gravity Problems Authors: Philip D. Mannheim arXiv:0909.0212 Here's the abstract: "We present a solution to...

Express as the product of disjoint cycles: a. (1,2,3)(4,5)(1,6,7,8,9)(1,5) b. (1,2)(1,2,3)(1,2) I know how to do in 2 row permutations, with right to - left. can anyone tell me , how to express it without transfer it into 2 row permutations. 2 disjoint product. eg. (123)(234)...

I would have thought this standard crackpottery, but evidently it won "Best New Paper" from the University of Liege in Belgium! What do you all think? http://www.theresonanceproject.org/pdf/schwarzschild_proton_a4.pdf I can't find anything about the "quantum vacuum density" he talks...

Can anyone help me with this, i have done the first part, whereas i have obtained B using ampere's law. But changing it to A (magnetic vector potential) is proving to be tricky. A long straight wire of radius a carries a uniform steady current I. Using the integral form of Ampere's law...

Hello there. I am a 2nd year uni student studying chemistry. I have a paper in a few weeks on the foundations of physical chemistry. I am having a problem with some quetions and would appreciate any help. Thank you to any who help. 1.Can the expectation value of the rotational angular momentum...

In the back of the economist there are articles about new research. One of them was about a paper published in science I think. It concerned deviations form what general relativity predicts for the velocity of space probes. I said that the measured velocities of a probe or probes was out by...

The major conclusion: “A link between the Sun, cosmic rays, aerosols, and liquid-water clouds appears to exist on a global scale…” http://docs.google.com/gview?a=v&q=cache:k3yiHsNVc1cJ:www.wzforum.de/forum2/file.php%3F0,file%3D11877 keep in mind that solar modulation of clouds of even 2-3...

http://arxiv.org/abs/0907.4388 Loop Quantum Gravity a la Aharonov-Bohm Eugenio Bianchi 19 pages, 1 figure (Submitted on 24 Jul 2009) "The state space of Loop Quantum Gravity admits a decomposition into orthogonal subspaces associated to diffeomorphism equivalence classes of graphs. In this paper...

About a month ago, I got my masters in physics (condensed matter). I worked really hard for about a year and half on the subject of sumulating the semiconductor nanostructure properties with different simulating codes which applied density functional theory approach. I prepared two papers on...

Alright, so, first of all, I created this problem myself. I made this to study, so I considered it as my homework. 1. How long will a crumpled ball of paper that is 3 inches in diameter take to fall 45 meters IN FREEFALL, knowing that the sheet of paper used to create the ball was 210mm x 297mm...

I didn't know where to post this question, so I'm sorry if I did it in the wrong section. I've fell over the following paper : http://arxiv.org/ftp/arxiv/papers/0907/0907.2790.pdf. I don't know if it's just me, or the paper has plenty of orthographic errors and some incomprehensible...

I have a question regarding the process of publishing. Is the preferred method to first submit to a pre-press (such as arxiv) or to directly send into a journal for review. If submitting to arxiv, how does one find a suitable endorser? Apparently one can find endorsers by reviewing topical...

z=3x^2+2y^2+1 x^2+y^2 <=1 on paper when i input zeros i get 2 parabolas and a line

Here are some background independent QG papers which appeared in the 2nd quarter (April-June) of this year, for us to evaluate and try predicting how they will do. The poll is set up to accept multiple choices. Please check off the paper or papers you predict will have the most significant...

Is there any free (and legal, obviously) place where I can acquire a copy of Eilenberg and MacLane's paper "The General Theory of Natural Equivalences" on the internet? I'm currently studying category theory and am interested in finding a copy of this paper. Thanks!

What is the reason for paper getting stuck to a hot bowl when it is kept on paper for a certain period . I hve seen particularly that newspaper when placed under a hot bowl gets stuck to the bottom of bowl when the bowl is lifted ? I think the cohesive forces b/w the the two surfaces must...

Hello ! My friend challenged me to remove a sheet that is under a standing pen, without the pen falling. I can only use 2 finger and i can only touch the paper. Do you know a way to do this ? (he said that I have to use physics)

Hello there. I am not sure if this is the right place to post but anyway... I was asked to make a paper for my solid state course concerning one of the following subjects : 1) Nanotechnology 2) Organic Electronics 3) Organic Semiconductors 4) Spintronics I am not sure which one i...

I am using quite a few images from other neuroscience papers or medical books in my paper. I went through the recommended procedure of writing to the authors and copyright owners about six weeks ago. All the authors wrote back right away and said ok to use. The copyright owners: journals and...

I want to do a Kaluza Klein exercise but I am afraid I am too lazy to finish any work if not under pressure. So I was thinking, perhaps it could be done here, collaboratively, and signed by all collaborators (the ones wishing/willing to sign; others can be just acknowledged or even remain...

Hello, I need to write a paper about physics and I hvae no idea at all what I could write about. Just about a topic related to physics. Could be based on an article, a book, video etc. I was going to write about an interesting article about physics , but I can't find anything :frown...

This is not homework, I'm just curious. Perhaps it belongs in the Engineering Forum, but the last one of these I posted there just got left in the dust. I have a rather specific question to ask those of you who are familiar with paper airplane building/structure/dynamics. How would I go about...

This confirms a beautiful result of Modesto's earlier paper, that LQG seems to coincide with two other very different types of quantum geometry/gravity on the business of dimensionality declining continuously with scale. Fractal-like microstructure of space time. As scale decreases the observed...

I've been trying to locate a complete copy of Gabriele Veneziano's paper "Construction of a crossing symmetric, regge behaved amplitude for linearly rising trajectories". The CERN document server claims that it has the fulltext, so I downloaded it, yet it only includes 10 of the 15 total pages...

I would like to write a physics paper but was at a loss as to the general structure of one. Can you guys point me in the direction of some templates, or papers that would act as good templates? Also what are the chances of a layman getting published or even entertained by peer reviewed journals?

I am a sophomore engineering student taking a thermodynamics/fluid mechanics course right now. We have to write a short 4 page research paper on a topic of our choosing, that deals with thermodynamics and/or fluid mechanics. I am looking for ideas on a good topic, keeping in mind that I have to...

The Algebra of Grand Unified Theories John C. Baez, John Huerta (Submitted on 9 Apr 2009) Abstract: The Standard Model of particle physics may seem complicated and arbitrary, but it has hidden patterns that are revealed by the relationship between three "grand unified theories": theories...

just wondering whether copyright approval is needed if i use say an fMRI image from a paper in my own ? If so do they require payment ? If anybody has had to do this were there any complications, such as the copyright holder having to review in what context the image was used ? Thanks...