article Definition and 359 Threads

I saw this in http://www.space.com/12928-falling-satellite-crash-late-september-nasa.html" about the debris from the UARS satellite. This seems like an extremely large probability to me. They do not make any reference on how they computed this. Does anyone here know how they could have come...

First we had the Muslim outreach: "to find a way to reach out to the Muslim world and engage much more with dominantly Muslim nations to help them feel good about their historic contribution to science ... and math and engineering." BHO...

Hello, I'm using the article class with a table of contents. Everything works fine, except one point: The List of Figures, List of Tables and the Bibliography appars in the Contens with no points between the Name and the Page where they are. For example: Contents 1 Section 1...

actually i want two write a review article on issues related to civil engineering such as earthquake resistance,concrete(semi transparency) etc and i want to get it published. i have thought about a number of topics which were not so interesting .please suggest me with some good interesting...

Okay I just checked out my ODE professor's site for next year and I notice that all of her assignments are writing-based... I've attached one of the sample assignments (there are like four writing assignments in one semester...), the marking scheme and a sample article I am a little worried...

Does anyone know what paper this news article is referring to? http://www.cbc.ca/news/technology/story/2011/05/19/science-dark-energy-einstein-blake.html I'm thinking it must be this one, http://arxiv.org/abs/1105.2862 but what the paper is saying and the way the article is...

I have a general question about submitting an article--a scientific article, obviously--to journals for publication*: Can you submit your article to several journals, and then withdraw the submission from the journals once a particular journal forwards the paper for refereeing or agrees to...

Hi, the wikipedia article on fermium states that it is the last element that can be synthesized by neutron bombardment but decides not to explain why. Can anybody give a layman's explanation? Thanks.

Hi folks, it's been a long while since I've posted here, but, I need help. I'm trying to write an article for the "Space News" board on another forum I'm a member on; about inter-galactic voids and supervoids. The problem is that I keep finding measurements for their size in both megaparsecs...

Is a method described in this article may really allow to store some energy? http://tech.groups.yahoo.com/group/ETList/message/848"

Well, I was impressed, anyway... Anybody?

regarding the encasement problem of Chernoble disaster site is it feasible to build a mountain of clay, maybe 2 or 300m high, to enclose the site? Moving 20,000,000m3 would be a lot cheaper than 1,3B euros. Would a lead membrane be required? I am not a scientist if my questions seem...

Does this article prove that parallel universes exist... http://www.physorg.com/news/2010-12-scientists-evidence-universes.html Yes. no or to early to say Can you please keep your answers simple I am not very advanced in physics thanks in advance

Hi all, I am reading the moment library article, and in particular pertaining to this section I am attempting to visualize what is explained. I have created the following diagram (click for a larger image): http://www.freeimagehosting.net/uploads/th.6994c04925.png I believe that...

What does everyone think about this? http://www.fordham.edu/academics/programs_at_fordham_/mathematics_departme/what_math/index.asp

Sorry if I'm doing this wrong, first time poster. I would like to find a book or article explaining at least some of the reasoning behind equation no. 3 in this article: http://arxiv.org/pdf/0709.4593v2 I'm a bit surprised I haven't found what I'm looking for yet. I don't know if I'm...

I came across this article. Really I thought it was a fantastic read and worth sharing. http://www.maa.org/devlin/LockhartsLament.pdf

http://www.cnn.com/2010/LIVING/12/07/o.science.mysteries.not.solved/index.html?hpt=C2 Maybe some of you will get a kick out of this. Or maybe it will take your faith in humanity down a notch. Edit by Ivan: The article cited has now been changed and no longer has all the pseudo-scientific...

Does anyone have a link to an online version? I only get a couple of paragraphs from the SciAm link at Woit's blog: http://www.math.columbia.edu/~woit/wordpress/?p=3292 Anyone seen it? Know what it covers (besides latest model E8 unification)? It's called *A Geometric Theory of Everything*...

Does anyone know where I can download this article, or perhaps if someone has this article they could please attach it to their reply? http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=6914572

hello friends, i have some point that i didn't understand when i read the article of ALEXEI KOVALEV, if you can help me to answer to this question: we can found the article in this lien ( www.dpmms.cam.ac.uk/~agk22/vb.pdf ) 1- why a vector from vector subspace must be spanned just by...

Any alternative "article" websites for students/teens? Hi, I've been really interested in writing articles and discussing topics in general and special relativity (and also a bit of quantum physics). I've even written some of my own how ever i can't find any website or magazine that would...

An article by one of my lecturers. I think this is a must read for anyone with a background in music and maths. http://www.parabola.unsw.edu.au/vol26_no1/vol26_no1_1.pdf It's a bit long, but not that 'dense' if you know what I mean so it's easy to get through. Let me know what you guys...

Hi, I'm new so I hope I post at the right place ( I think I posted wrongly once already). (http://discovermagazine.com/2010/apr/01-back-from-the-future/article_view?b_start:int=1&-C=) I was just reading about this article on Discover Magazine which suggests that experiments show that events...

I would like to step up from the pop-sci level of understanding LQG to something more like a real physicist's understanding, but one thing that's hanging me up is the SU(2) stuff, which I don't understand, even at a hand-wavy level. Falling back to the pop-sci level to regroup, I remembered that...

Basic LQG questions raised by 1998 "LQG Primer" article B Crowell asked what would be the best way into LQG and then (on looking over the suggested entry-level "LQG Primer" article by Rovelli and Upadhya http://arxiv.org/abs/gr-qc/9806079 ) made a potentially very helpful list of questions. I...

http://www.scientificamerican.com/article.cfm?id=rummaging-for-a-final-theory I cannot see anything new at all there. I hope other people here can help me see something relevant here. I found this while checking Garrett's twitter.

Hello all. This question is not specifically about the theory itself; but the way of explaining or interpreting it. I have found few explanations about theory of simultaneity which explain in the below mentioned fashion. My doubt is that - 1.1 Light speed is same in all the reference...

Today's WSJ has a well-written and informative account of the flotilla incident/attack/provocation: http://online.wsj.com/article/SB10001424052748704535004575349031510961398.html

AUTHOR: William Ahern, Director of Policy and Communications, The Tax Foundation Ed. Note: Our Fiscal Future has invited distinguished guest bloggers to share their views about how to get the nation on a sustainable fiscal path. The views presented are their own, and do not necessarily...

Do you know what should I read to understand why everything wants to have the smallest energy and why every object which is approaching light speed puts on mass?

What do you think? Last week, Iran's opposition leaders Mir-Hossein Mousavi and Mehdi Karoubi canceled anti-government demonstrations timed to commemorate the anniversary of last year's disputed presidential election. Secretary of the State Hillary Clinton called the cancellation...

Losing the copyright when publishing a research article??! I have recently finished a research article about a theory that geometrically integrates General Relativity with other gauge fields, Electromagnetism included. The next step was of course to publish it so I went on looking for what...

The Wikipedia article Divergence, in the section Application to The Wikipedia article Divergence, in the section [i]Application to Cartesian coordinates, says of the del-dot formula for divergence, "Although expressed in terms of coordinates, the result is invariant under orthogonal...

An article of interest in today's New York Times online: Title: A New Clue to Explain Human Existence Published: May 17, 2010 Author: Dennis Overbye First Sentence: Physicists at the Fermi National Accelerator Laboratory are reporting that they have stumbled onto a new clue that could...

This gave me a chuckle. http://www.economist.com/world/europe/displayStory.cfm?story_id=16003661&source=most_commented Some folks have had http://en.wikipedia.org/wiki/File:Jesusland_map.svg" , too.

Hello ! In an article (Einstein's mistakes) published in 2005 in "Physics Today" by Steven Weinberg, he says: """""" even so, einstein would still probably be unhappy with today's theories, because they are not unified with gravitation and because matter - electrons, quarks and so on...

I need to write one for my first year Lab course. My current idea is to write about the future reversal of the Earth's magnetic field, and how it might affect things on earth. However, I've looked into some theoretical effects of the shift (mainly during the shift itself) and there doesn't seem...

http://io9.com/5512705/why-are-scientists-trying-to-create-slow-light" This article sounds wrong to me. Is it correct? Here’s a clip: My recollection is that slow light has more to do with Condensed matter physics and the light does not get absorbed (or emitted). If it did, refractor...

Trying to get some background for a potential news article about engineering challenges for aircraft fluid (primarily fuel and avionics cooling) systems – focusing on contrasts between designing for UAVs vs. manned aircraft. Engineers I already talked with have mentioned: designing...

I have pretty good handle on non-relativistic quantum mechanics, but I would like to learn about the Standard Model (Quantum Field Theory). What is the best introductory book and/or introductory article on QFT? Thanks Here are some I've heard of: Articles "[URL Model: An Introduction Authors...

The Wikipedia article on the Helium Atom goes through the Thomas-Fermi approximation and shows that when you use a screening parameter Z you can optimize the energy of the atom according to the following formula: \langle H \rangle = [-2Z^2 + \frac{27}{4}Z]E_1 (E_1 is elsewhere defined as the...

Every Wikipedia physics article "In need of Attention From Expert"? I've lately realized the sad situation with Wikipedia articles. Nearly every (exaggerated a bit) well-written physics article that covers some non-trivial physics has been tagged "in need of attention from an expert on the...

"Questionable" article in Scientific American? "Questionable" is my polite assessment. It's highly speculative at best, but specifying distances to "copies" of our galaxy (and ourselves) is cranky as far as I'm concerned. I'm not paying to read the full article. What ever happened to Scientific...

(Thread should be named: Question about proof of the division algorithm, sorry about that) Hi, I am reading this proof of the division article: http://xmlearning.maths.ed.ac.uk/lecture_notes/polynomials/division_algorithm/division_algorithm.php" I will write some of it here in case you don't...

Ok I'm currently exploring other forms of life, mainly silicone and ammonia based life I found out they can replace carbon and water in our system but I'm a bit stuck on the fact if they can replace both. So we would have SI instead of C and NH3 instead H2O. I think that assimilation...

This is my first academic paper that I am writing completely by myself and need some advice from you published authors out there. The journal I am writing for says that they do not want you to cite any review articles. A review article that I am getting information from has some info I want to...

Dear participants of a forum. I can not find paper: Zeldovich Ya. B. - In: Magic without Magic: John Archibald Wheller/Ed. J. Clouder. - San Francisco, 1972. - P. 277. I would be rather grateful if somebody has helped me.

What is the best review article, published in a peer-reviewed journal, introducing string theory?

http://en.wikiversity.org/wiki/User:Dc987#Reasonable_Deviations_Thought_Experiment" Can somebody point out the fallacy of this thought experiment? -- Dmtr