Scientific Definition and 550 Threads

I have a lab, based on a skate park simulation, and I need to come up with a question. I came up with this: How does the mass of the skater affect the power of the skater? Would it be proper to do tests with no friction, low friction, and high friction and then compare the results with...

Hi there! I'm currently having great fun using numpy/scipy in python for astronomical data analysis. (I've been using C for this before, but it takes too much time to implement simple things that are in numpy/scipy already) Recently I've been told that most of people are using C or Fortran...

I'm sure you've all heard of Prop 37, but I'll write a short introduction. In the state of California, which is located in the United States, residents can vote on a proposition. That proposition becomes law if they vote in favor of it. Proposition 37 was created in response to the belief...

Hi Physics, Math and science people! What is the scientific reason for feeling lonely? I want to get rid of loneliness for my health, I have exams to prepare for my life. I want to dedicate my whole life for research in Physics but I am unable to concentrate because I do not have...

Do you know any good books which explain the scientific method and empiricism in detail? If so, please share.

Hello, I am a 36 year old glassblower, I never had to go to school for this, as it is learned more by apprenticeship, than schooling. I have become interested in Quantum Physics, and want to go to school and then work in the field. I have only graduated high school, but was top in my class...

Cannot find any scientific validation of product "Dyna Beads" for tire balancing. I'm intrigued by the difficulty in locating any reputable scientific analysis of this method. Google "Dyna Beads". Primary vendor of these tire balancing beads is the following company...

"The average wavelength of white light is 5.0 x 10-7m. What would this be in nanometers? The textbook answer key stated the answer as 500n but I have no idea how that is the answer. I know that the value of nanometers is 10-9 so I figured you add -7 and -9 to get -16... Thanks,

1. Which of the following are scientific hypotheses? (a) Chlorophyll makes grass green. (b) Earth rotates about its axis because living things need an alternation of light and darkness. (c) Tides are caused by the moon. 2. Well from science I know Tides are caused by the moon...

Hello there I was wondering, what is the scientificly correct/accepted name given to the little gaps in between molecules/atoms. I tried looking it up, but all I get is explanations about the uncertainty principle and electron clouds. I just want to know what the "gaps" are called thanks

Does anyone know what are the general policies for engineers working in a company to publish in scientific journals? Does one have to provide the company name as affiliation or leave it blank or something else?

Hey guys basically as the title says, I have been recently trying to find these papers but I have had no luck. All I seem to get is articles from Magazines like New Scientist and Scientific American. Any help would be greatly appreciated. Thanks in advance MattA147. :)

Hello I was thinking about how could we think if we arrived to a new planet and found a strange buildings and a complicated machines but we haven't found any living creatures or aliens , just a srange buildings and macheins , could that be an evidence for the existence of aliens ?? we haven't...

Hey physicsforums, Normally I enjoy reading texts that explain or elaborate on scientific phenomena. Also, normally, these texts take me awhile to read, but I just found out that I can read fiction works A LOT faster than books where I'm legitimately learning something scientific. Is...

I have spent a lot of time trying to verify the existence of an alleged scientific article but have not been able to. The only info I have about the article is the following text: Maybe someone here is aware of this article and can provide the source.

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...

I understand what inflation is, but what are the reasons behind why scientists are near definitive that it indeed happened? Please go as in depth, complex, or over the top as you need/want.

This is a retake of a recent question that was perhaps misunderstood by the moderators. As a reminder: "As a rule of thumb, some topics pertaining to religion might be permissible if they are discussed in such a way so as to remain neutral on the truth of, or value judgments stemming from...

Is the use of the term random a valid scientific explanation or just a pseudoname for unknown? I'm asking if it isn't essentially illogical to ascribe the existence of an event, (e.g the origin of the universe) to a random predecessor event. My humble understanding of logic adheres to a cause...

I am doing a physics project on finding the scientific principles involved in pan flute. Could people just put down some phenomenon that is relevant to this? One I know I think is the helmholtz principle, but can I use those equations, becuase from what I read, it seems like there is water...

i recently came across stan lee's superhumans in which a man claims to have telekinetic powers. Although i couldn't believe most of the super human abilities shown atleast i could convince myself they were possible under established laws of physics. But this one clearly threw me away. Earlier i...

I have to do a chemistry report and have two peer reviewed scientific journals related to my topic as references. My question is if there is some sort of database that has this information readily available?

The Better Half is always researching the latest diet trends, theories, observations, etc... I check out the articles every now and then and it seems like the overlaying problem with all these studies is the removal of variables in a study. Is it possible to accurately measure/test nutrition...

Homework Statement According to the question, i have to convert 3.60 * 105 to regular notation, without changing the number of significant figures, which is currently, as i understand, three. I'm just really unsure how to do this. Any help? Homework Equations Some said to write out...

I was wondering if one can make money by getting published in scientific journals

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...

How can you make radio waves? Explain it scientifically

Greetings Everyone, This is a question for those who have PhD's or anyone who published their work in some Scientific Journal. Do you need some academic background or what is the minimum academic requirement (bachelor, MSc, PhD , diploma or none) to publish your work in any scientific...

What would be the outcome of the US government taking over the entire Scientific publishing industry? If all peer review was funded by taxpayer dollars.? That's what I'm mostly interested in hearing about - the results, economic, political..etc of a completely government controlled scientific...

Hi. I'm asked to convert 2 year into the SI Unit seconds: Known: 1 Hr = 3600 s 1 Day = 86400 s So using a calculator... 1 yr = 365*86,400 = 31,536,000 I want to express the answer in scientific notation: Because the lesser number on has 3 significant digits, the scientific...

The Scientific Method. Why is it important? What makes it "the" method to use for investigating the universe?

Just got this issue (also linked to from PF home page): http://www.scientificamerican.com/article.cfm?id=search-for-new-physics This whole line of development is unfamiliar to me, and outside of my expertise. The following appear to be some of the papers behind the work described. I am...

Anthony Aquirre and Steven Gratton in 2003 developed a speculative physics hypothesis that includes a timeless generation of time. [1] However, Aquirre in 2007 argued against his 2003 hypothesis of timeless origins while hypothesizing the notion of a past infinite time's arrow. [2] This post...

Hi, I hope this is the right place to ask this question. I am putting it here because it has a bit of influence regarding my education. Sometimes when I listen to people talk about research, or people talking about how long it took someone to figure something out, I get a little bit...

I just was wondering if anyone here has pursued a degree in scientific computing / high performance computing / computational simulation and modeling, type of degree. For example Georgia Tech's Computational Science and Engineering degree or Computational and Mathematical Engineering degree, or...

So I suck at programming, but I need to find the determinant of a complex 6x6 array using GSL in C (not GSL complex, complex.h complex). Here is what has failed so far starting with a 6x6 double complex array named mymatrix: gsl_matrix_complex_view m = gsl_matrix_complex_view_array(mymatrix, 6...

I've been using a calculator and did end up with the answer in the form of 5.34588e-012 or something like that. I was learning Matlabs where I did sin(pi)=1.2246e-016 I'm not into how did sin(pi) go equal to 1.2246e-016 but what does 1.2246e-016 mean ? I googled it and someplace it wrote...

I am new to astronomy and astrophysics, can anyone point to a great free online place to learn scientific notation? I am quite obsessed with learning the math, but unfortunately have not the funds to attend a proper school. Unfortunately I work for a cheap employer who doesn't even pay for work...

What exactly is materialism? Is it a philosophy, a scientific theory, or something else?

Hi everyone! I need to draw a bunch of figures for my papers but i don't know how to use professional software like photoshop, 3dmax, maya, ...of course as you know, the figures must be pretty and accurate. i need to one which is powerful but simple to use does anyone has any suggestion...

I am currently doing AS level physics at school. However I still can't rearrange formula for questions. I literally have no idea on how to go about doing it. For example, a simple formula like R=V/I I tried to rearrange it so I could find I. I tried using an example I found on this...

Homework Statement scientific notation I have a problem that displays the 4th root of the square root of 5.2 x 10 to the -9th power Homework Equations 4 . .... ... ... -9 ... sq rt of 5.2 X 10 4 -9 sq rt of 5.2 X 10 The Attempt at a Solution The answer I...

The speed of light is 2.99792458 x 10^8 meters/second. What is this speed in miles per hour? (There are 1609 meters in one mile). I used dimensional analysis to get here:(2.99792458 x 10^8 meters/second) * (1 mile /1609 meters) * (3600 seconds / 1 hour) My question is, what do I do with...

Here is a brief recap in case you missed a few of these! Which is your favorite? Are they missing some? http://io9.com/5871725/biggest-scientific-breakthroughs-of-2011

Hi! I wonder if it is possible to get some book recommendations on the subject of efficient data structures and memory management in scientific computing? I do a bit of parallel programming in C/C++ with MPI, and I'm now considering trying my hand at some GPU programming as well. When...

I encourage my students to participate in class and think for themselves. I often get questions or remarks about concepts that I teach that stem either from a misunderstanding of an idea, or lack of clarity as to the evidence in support of a theory. I usually find these to be helpful in...

Hi there! I am puzzling over the choice of a European university where to study physics. I have to start from scratch, that is from a bachelor degree, since my BSc is in a different field, computer science engineering. Courses must be taught completely in English because I don't have any...

http://www.theregister.co.uk/2011/09/22/cern_coverity/"]CERN's[/PLAIN] boson hunters tackle big data bug infestation It's the software or the science that's been wrong One's analysis when processing experimental data must account for possible errors in the tools used to identify and detect...

I've been studying chemistry for years now but I still don't know how all this stuff works. I barely even know where to start. We write lab reports for every experiment we do in college and I assume that in the real world, researchers compile these lab reports whenever they do a real experiment...

Hello, I you plan to buy a book on Amazon, you can read comments by previous readers. These comments, together with the book preview, are quite useful. At the least, reviews could decrease the risk of a wrong purchase or of a waste of time. Wouldn't it be useful to also have the...