Knowledge Definition and 373 Threads

Problem Solving Skill vs. Mathematical Knowledge Here goes more of my mathematical musings: Problem Solving Skill vs. Mathematical Knowledge. Which is more important to you? Spending time to improve one will cost you time to improve the other. You must excel at both to become a...

hi everyone I am a new member to this forum and i study physics.. i would like to know if you know any sites with free e-books about physics :confused: thanks a lot

Ok, this may sound like a stupid question, but I really, really need to know. How much more mathematical knowledge does a typical mathematician have than a math specialist student who has just finished fourth year university math courses? Before you criticize my question, let me explain...

Hi. My school is getting a visit from a scientist that is told to be really good on special and general relativity. My teacher of course wants us to ask really tricky and hard questions and try to put him in place. Now I asking you guys for really hard questions :smile: Do you know something...

Hello to all. I want to check my knowledge about theory nad principles of thermocoupels. Please can you read .pdf file in attachment and comment? Thank you very much in advance.

Hye everybody... I have a problem here..actually I'm taking International Baccaulareate course and I've required to do a Theory of Knowledge essay in order for me to get my diploma...The question is : *Can liretature ''tell the truth'' better than other areas of knowledge?* I've...

This is a question where the answer is given but I don't understand how to derive it. The answer to the homogeneous eq. is: A cosh(x) + B sinh(x) with no explanation of how it is arrived at and the given answer then goes on to describe how the non-homogeneous part is solved. Diff. eq. ...

Note: At the bottom of this post is a scan of the problem from the textbook, and then in the next post are scans of previous pages from the textbook, but (unless you're familiar with game theory) you probably should read my own words before you read the textbook scans. I have an equation: u1 =...

i tried searching for it on google but couldn't get the right term. Do you guys know of any research going on trying to transfer knowledge directly into brain like chip?

A tech fest is fast approaching in my university, and as part of the run up, a couple of my friends made a nice trivia quiz, which concluded yesterday. So, here it is. Feel free to google and remember to hide your answers using [ color=#black] 1. Identify the person in the picture. (Hint: He...

I'm working on a pricing request for an independant telephone company and they furnished me a list of countries for which they want pricing. What's the first country listed? Africa. :bugeye: I don't know how to bring up the fact that Africa is not a country without embarrassing them and...

Hi, as usual in September I am deciding which courses to take. I am in the second year of my study and so far I am following the more theoretical path, later maybe with focus on quantum mechanics and quantum information processing. My question is: which math courses should I take this year...

9/9 Genius You are 87% knowledgeable and 84% intellectual. Amazing! You have an incredible brain (intellect) and a powerhouse of information (knowledge)! Keep up the impressive work-- we all bow to you. My test tracked 2 variables How you compared to other people your age and...

Hi, I am currently taken Pre Cal and it seems to be really easy to me (I have a 101 average right now =0 ) and I was wondering what is the highest math that you need to become an engineer that like makes highways, bridges, buildings, and stuff like that. Also, is Calculas AB and BC just as...

i read a lot recently about mysticism as means to knowledge. What knowledge specifically can it bring? Can ppl accept this "knowledge" even when its for them not reachable/verifiable, either due to the fact that majority of ppl don’t meditate, or because they cannot reach that level in...

Intelligence is the mental capacity to reason, plan, solve problems, think abstractly, comprehend ideas and language, and learn. I had a little thought experiment the other day, and I thought I'd share it here. If we define knowledge as knowing something, as in, a piece of information, no...

hi, i have this Qns as follows : which of the following statements about laser is incorrect? a. Laser light can be focused to a tiny spot. b. Laser light must be visible. c. Laser light travels in vacuum at a speed of 3 X 10^8 m/s d. Laser light can be extremely powerful. e. Laser...

Biology... 200 questions... 2 hours... Im sorry but if this professor really thought he was testing our knowledge rather then our sheer stamina, he has another thing coming. At some point.. seriously... your brain just seems to start shutting down. I know when it was around problem 150, my...

hi, i have this Qns as follows : which of the following statements about laser is incorrect? a. Laser light can be focused to a tiny spot. b. Laser light must be visible. c. Laser light travels in vacuum at a speed of 3 X 10^8 m/s d. Laser light can be extremely powerful. e. Laser...

http://news.yahoo.com/s/ap/20060502/ap_on_re_us/where_s_louisiana Now add this to the miserable literacy in science, I'd say we have it made. Zz.

I'm trying to create a model for a car turning to make a differential (I need forces aplied on the wheel, and all other things) but I don't have enough knowledge of dynamics to do that. Does someone know a book(s), papers or sites with good explanation about that?

Near the top of this web page, there is a link to a quiz. If you take the Novice quiz called "Beginning Physics", you will find an error in question 4: Question: A cyclist changes velocity from 5 m/sec [N] to 15 m/sec [N] in 4.0 sec. What is the value of her acceleration? a) 2.5 m/sec b)...

According to the concept of space-time, we live in a 4 dimensional universe. But according to electro-magnetism and any other subject that uses imaginary or complex numbers, we express the world in 5 or more dimensions and assume they are imaginary, possibly because we have already seen they...

How useful is the knowledge of discrete math for computer programmers?

Sir: I need the knowledge of the quantum well, who can help me?

One of my goals in participating in this forum, is to get my physics chops back, after a long period in the hinterlands of commerce. I've learned a great deal from many bright and interesting people here. My introduction to QM happened almost 50 years ago, at which point I became fascinated...

sorry if this sounds a tad retarded but astronomical topics arent my forte...how do know if something is red-shifted without prior knowledge? say you've got light emitted from galaxy far far away at 500nm, and it ends up on Earth at 510nm. how can you differentiate between 510nm actual...

http://arxiv.org/abs/hep-ph/0512187 Enlightenment, Knowledge, Ignorance, Temptation Frank Wilczek 10 pages, 5 figures. Summary talk at "Expectations of a Final Theory'', Trinity College, Cambridge, September 2005 "I discuss the historical and conceptual roots of reasoning about the parameters...

Hi, I would like to know your thoughts about the following two fact in physics; 1) Physics is scale-dependent; at each scale of distences we have different degrees of freedom and different dynamics, we need a different theory. 2) Physics at a larger scale decoples from the physics at...

Hi everybody, I would like to know: 1)what is the so-called VIRIAL in physics, 2) what is the VIRIAL THEOREM and 3) comments on its importance in physics. It always sounded too much mysterious to me. Thank you all, DaTario

Is it possible to know everything? If it is possible, then is it dependent on time? that is, for a defined moment in time (say a second), one person can know all that there is to know about the universe. since the universe is constantly changing, the future state cannot be stated definitely...

Is it completely impossible, even in principle, that eventually there can be a device by which we could know about the superposition of states without collapsing it? For example, being able to know that an atom is in a 30% probability of being unexcited and a 70% probability of being excited...

I meet a problem about "ion sputtering "in my work,I want to acquire some knowledge about "ion sputtering ",who can tell me where can i find relative articles? THANKS!

This is specifically targeted towards those who claim to be experts in the area of Special Relativity. The following derivation derives the Lorentz equations of special relativity. Follow the derivation and list the assumptions (postulates) used to derive the theory. That is to say, if a...

I have a limited knowledge of electrical circuits and recently it got put to test. I live in Arizona and the A/C on my house quit. I found that the condensing fan motor had siezed This is what was in the unit. 1/5 hp, 825 RPM 208-230 vac, 1.1 amp with a 7.5 ufd capacitor. The local...

I've been giving some thought to the real meaning of knowledge. Do things that I know in the back of my mind count as knowledge? If I forget something but somehow my mind is triggered and I remember it five years from now, I obviously know the information, but I didn't at the time. So...

does anyone have any knowledge on fire modelling?

Ahh that title should get your attention! Ive been reading this guy's blog online. He is a postdoc in Physics and his views on education, knowledge, and attitudes towards certain things are right on the money - I think...

Is there a program for designing circuit boards that does not require knowledge of circuits? Were you can just specify what you want the circuit to do and the program designs the circuit board for you.

Well... let me offer a small contest - I called it Knowledge Horizon Contest, and you'll find out why in a couple of minutes: 1. Everyone who wishes to enter the contest has to post a single question in this thread till Friday 22 APR 0:00 GMT. The poster is recognized as an author of the...

While reading and engaging in discussions regarding reality etc, i am struck with an overriding urge to ask the following question: Without spewing forth memorised definitions from well established sources, what are some general conclusions/anecdotes concerning the nature of knowledge? ta...

Knowledge is the solutions to problems, whether they be mathematical, scientific, or practical. When I look at science or math for instance, I see a rat race. We always seem to be chasing down solutions to our problems or just for the fun of it. Yet everytime we think we have found that...

Does the scientific method mark the coexistence between belief and actual science, and describe tenets that involve a religion of information? Its prediction of world events may apply equally to measuring the electron's mass, or consequently to the conviction in its own efficacy. The...

so, I'm currently working on my bachelor's in mathematics, and seriously considering going on to pursue a PhD after that. Currently, I'm frustrated (not for long, semester is nearly over) with my calc II course and "matrix theory and linear algebra", though not so much the latter as the former...

I don't know anything about programming. Is it okay if I start with assembly? And more importantly, how can I begin to use assembly without any knowledge. If you could offer me a book / website, I'd really be pleased.

Hi, New to this forum and my physics isn't great, and i need to improve a hell of a lot for this years exams :-p. Firstly, Could someone explain to me how the Earth sits in a static orbit with the sun, in that they don't move closer to each other. As i thought until tonight, that...

hello! Nice to communicate with your guys! I'm a student who is studying in double E subject. I found some problems when I'm doing the new project this term. Is there some one can help me to say something about the principle of the frequency to voltage converter? I'm really confusing with this...

Same rules. One answer per customer. Try to be honest and supply your answer without simply looking it up somewhere. Rely on your own knowledge. 1) In Thomsen's Three-Age System, the Iron Age begins first in which continent: Asia, Europe, or Africa? 2) Who was the mother of the god Horus...

Hello! :smile: Einstein has been know to say, "Imagination is more important than knowledge." My friend, who I often learn science from, also encourages me to use my imagination when learning about science...and it indeed has done wonders for me! I am interested in anecdotes from...

Atoms have organized themselves into structures that have the capacity of thought and self awareness. With this in mind, one has to wonder/ask as to how deep into the atomic world does mind penetrate? To some the answer is obvious, that consciousness (mind/energy) is all there is in the...