Paper Definition and 999 Threads

Chemistry student saying hi to everyone Just read http://www.nature.com/news/quantum-gas-goes-below-absolute-zero-1.12146 about negative temperature. I knew I wouldn't understand a single sentence of the actual Science paper, but I took a look at the Science perspective (Lincoln D. Carr) but...

Of the nineteen candidates, please choose the one(s) you think will prove most significant for future research in Loop-and-allied quantum gravity. Since the poll is multiple choice, it's possible to vote for several papers. Abstract summaries follow in the next post...

There is a student in US. He has completed 4 hours of high school and is applying for college. As part of the application procedure, he has to submit a research paper in Mathematics. He is a very good student. He accelerated math and enrolled for Differential Equation, while still being in...

Hi there, I'm doing a paper about the special theory of relativity. The paper consists of two parts: - explaining the theory - explaining what kind of consequences the special theory will encounter, if particles move faster than the speed of light. Where does the theory fail? I've...

[FONT="Comic Sans MS"]Hi, Does anyone have any experience with this synthetic paper made by Decro? It is very similar to the material that those "Fatheads" are made out of. This paper comes in 44" x 100' rolls and is used to make banners, signs, etc. It has a base material of polypropylene...

In another thread, Dalespam posted this paper: http://arxiv.org/abs/gr-qc/0311038 The paper is, overall, very nice and introduces a very convenient unification of all coordinate systems for the spherically symmetric vacuum GR solution that manifest the static character ( of the exterior...

Homework Statement This isn't really a homework probelm, I'm trying to answer some questions about a picture to use in my final paper for physics. I thought it would be a fun thing to have thrown in there but I can't seem to figure out how to start...

http://www.vibsys.put.poznan.pl/journal/2010-24/noga-2.pdf Equations (9) leads to (11). How from R boundary condition do we end up with the equation in (11)?

In the paper, http://arxiv.org/pdf/1205.3365v1.pdf, page 21, the author argues that if: t →∞(1-iϵ), all the terms in equation (193) goes to zero, except the first term. Can anyone explain this to me? Thanks

Homework Statement DSP Technology Report Research a particular application of DSP, gathering enough information to deliver a 10 min oral report to the rest of the class. You can focus on hardware, software issues, or a specific algorithm. Give as much detail as possible. Homework Equations...

I wrote this while I was bored at work earlier. Measurable Theoretical Breakdown of the Universe: A Paper for Amusement by Pete Lerza 11/10/2012 I’ve done all mathematics with fairly loose approximations. The purpose of this is not for scientific accuracy, but for a general...

Hope mods will allow this. Seeking comments on neutron detection techniques described in the linked paper. Authors are affiliated with China Institute of Atomic Energy, Beijing. This is a LENR paper with no theoretical content. Full text is free to download...

arXiv:1210.8144 (cross-list from physics.pop-ph) [pdf, ps, other] Possible Bubbles of Spacetime Curvature in the South Pacific Benjamin K. Tippett Comments: 13 pages, 10 figures. Before you charter a boat, please look up the collected works of HP Lovecraft Subjects: Popular Physics...

I am examining Berry's original 1984 paper of geometrical phases. I am having trouble understanding a portion of it, however (which is attached as a photo). In particular, equation (6) appears to have a bra-ket expression which includes the bra- complex conjugate of a state, <n(R)|, along with a...

[FONT=Times New Roman][FONT=tahoma]Just to show that not everything in a STEP paper in difficult, this is an easy question: Which of the following are true and which false? Justify your answers [FONT=Times New Roman] [FONT=Times New Roman](i) \(a^{\ln(b)}=b^{\ln(a)}\), for all \(a,b \gt 0\)...

Of the nineteen candidates, please choose those you think will prove most significant for future research in Loop-and-allied quantum gravity. Since the poll is multiple choice, it's possible to vote for several papers. Abstract summaries follow in the next post. http://arxiv.org/abs/1207.0505...

Gravity with spin excludes fermionic strings Abstract: The existence of intrinsic spin of matter requires the metric-affine formulation of gravity, in which the affine connection is not constrained to be symmetric and its antisymmetric part (torsion tensor) is a dynamical variable. We show...

Superstring Perturbation Theory Revisited Abstract: Perturbative superstring theory is revisited, with the goal of giving a simpler and more direct demonstration that multi-loop amplitudes are gauge-invariant (apart from known anomalies), satisfy space-time supersymmetry when expected, and...

Can someone help me get the research paper from here: http://www.sciencedirect.com/science/article/pii/S0360319999000087 I tried asking my teacher and even the deputy head but they couldn't help me. I hope someone from here can.

Greetings! I've been looking for some of N.A. Kozyrev's papers for quite a while now, and I figured maybe I should ask here, since I'm sure atleast one of you has had to, at one point in time or another, had to find a research paper. The difficulty I've been having in finding his papers come...

And the last questions from the big and bad paper from me awesome teacher... Mayby, when my others examples it will be good :-D What the minimum speed wind, to take away paper on the desk? Have you got any ideas for calculate? I think about mv=Ft, but no, I think now... Or about Ek...

Brian Powell [bapowell] has a new paper out - Scalar runnings and a test of slow roll from CMB distortions, http://arxiv.org/abs/1209.2024. This is interesting and challenges some of the more radical ideas that are currently popular. Very nice, Brian!

1. In tearing a paper towel or plastic bag from a roll, why is a sharp jerk more effective than a slow pull 2. I found this answer online A quick, sharp jerk means a greater acceleration and a greater acceleration means a greater force. And it is force that tears the paper towel or...

Homework Statement titration method is more accurate than collection of carbon dioxide over water method to solve stoichiometry equation. Homework Equations what are the 3 reasons? The Attempt at a Solution some carbon dioxide has leak into the air, carbon dioxide is partially...

Has anyone any experience with that? Do you recommend it? I am undergraduate physics major and I am wondering should I buy iPad for this purpose (Ofc I would do other things with it too :D).

I then think that I *should*be spending my time in something more "practical" like R or C++ or matlab...then stop the math to code lol When I do a lot of coding I notice I go to the math and find that I'm able understand it easier because the notation/syntax is so much less busy. Do the...

"The Top 10500 Reasons Not to Believe in the Landscape". Tom Banks has written a lot of papers developing his unique perspective on how quantum gravity and string theory should work in the real world (specifically, in a universe with a small positive cosmological constant), and this is one...

Einstein's "Zur Elektrodynamik bewegter Körper" ("On the Electrodynamics of Moving Bodies") was published September 26. It reconciles Maxwell's equations for electricity and magnetism with the laws of mechanics by introducing major changes to mechanics close to the speed of light. This later...

I am not sure if this is wright section for this question,so please excuse me if a made a mistake. I am thinking of witing a paper about air as a meaning of sound transfer.Does humidity,temperature etc.influence sound.It should consist experiments and theory.So could you recommend me good book...

What do you make of this recent paper of Chamseddine and Connes? Resilience of the Spectral Standard Model The version of the Standard Model based on a product of the spacetime manifold with a finite noncommutative space had previously predicted a Higgs mass of 170 GeV. Supposedly this paper...

I'm writing a scientific paper and I'm basing it on a set of simulations that I carried out. I have generated some plots and I need to show that my generated plots are exactly the same as the ones on a reference paper. Obviously, I can't just copy-paste the plots from the reference. So how do I...

There are a lot of open problems in the twistor approach to Loop QG. They take the time to point them out. It's a fairly new approach so there are a lot of different things to work on. It's a 39 page paper, and at least from my perspective quite interesting. The authors are based in Marseille...

I am trying to understand the paper 'Spectral shifts in General Relativity' by Narlikar. The paper considers a light ray emanating from the origin of a FLRW coordinate system in a universe whose hypersurfaces of constant time (in that coordinate system) are homogeneous and isotropic. The...

I was just wondering what is the standard software used to edit scientific papers on mac. I downloaded and tried a couple, but they were too complicated. I don't want to evaluate integrals and define functions, all I want to do is write equations and text on the same document. Kind of like word...

Here in the 3d world, we have 2d paper where we can draw 2d representations of 3d objects. How would a 2d being draw a representation of a 2d object on a line? Is that even possible?

Why does paper become translucent when wax, butter or oil is rubbed on it?

Hello all; I have a homework 'question' I'm hoping I can get some help with here. For my Introduction to Mechanical Engineering class, we have been tasked with writing a technical paper and there is a portion of the mark dedicated to using social media and the internet to enhance the paper...

Hello, In Green's famous paper : "An essay on the Application of mathematical Analysis to the theories of Electricity and Magnetism" - which is freely available online here : http://arxiv.org/abs/0807.0088 in article 3, page 16, last paragraph, while deriving his now famous Green's...

Of the twenty candidates, please choose those you think will prove most significant for future research in Loop-and-allied quantum gravity. Since the poll is multiple choice, it's possible to vote for several papers. Abstract summaries follow in the next post. http://arxiv.org/abs/1206.6736...

Hi, i wanted to make a laser cutting device, not the big one but a small device just to cut a few mm thick paper. I just learned from a site(www.ehow.com/m/how_6692865_make-homemade-cutting-laser.html) that you can actually convert a laser pointer to a laser cutting device by rotating the...

What is a good review paper on modern medical physics? Thanks

Does anyone have an English translation of Einstein's 1906 paper "The Principle of Conservation of Motion of the Center of Gravity and the Inertia of Energy"? A copy would be greatly appreciated.

Hi everybody! I`m Russian scientist and work in area of biochemistry. The main tack of mine now is publishing a paper in a journal, it is desirable, with Impact factor. May be, you know some journals, non very captious, with friendly reviewers, where this is not so difficult to publish...

Has anybody taken part in online collaborations writing a scientific paper ? experiences ? Just what the title says really. I am collaborating with a programmer and a mathematician (myself biophysics) on a computational neuroscience paper. Ill be lead author as the primary concept is mine...

Homework Statement Two students threw a paper plane towards the bin, hitting a desk at time t=10. The trajectory can be modeled as follows: x=t-2sin(t), y=4-3cos(t) Then there were a few simple questions before: The students are curious about what would have happened to the paper...

Hi, Would anyone like to critique my physics paper "The Greenhouse Effect"... it's only in draft stage but would definitely like some feedback positive or negative... not just on the material but on the overall structure as this is the first science paper I have done at university; I don't...

I simply need to shoot a paper plane very far, the furthest distance. I cannot interfere with it during flight. I plan to have copper wires up a standing pole, from the pole, an extension (used as a ramp for the plane to gain acceleration), will stick out less than 90 deg/ Perpendicular). On...

Homework Statement I have attached the question Homework Equations The Attempt at a Solution so the first thing I did was find the frequency = 120 Hz The next thing I did was find the circumference = 0.2796 m (from pi*d) Now I know that the answer is no. magnets per disk *...

Homework Statement Please can someone look at the attached question (I have extracted MS and relevant previous pieces of information) Where do they get the idea that 100 W is produced over 24 hours ?? Homework Equations The Attempt at a SolutionI know power = work done / time but if power...

Question about the "reality of the quantum state" paper by Pusey, Barrettm and Rudolp In the paper I mentioned in the title (on arXiv and supposedly subsequently published in a journal), the authors claim to show that "if a quantum state merely represents information about a system, then...