Discussion Definition and 284 Threads

I was asked to solve the following problem: A box is sliding down a plain inclined 30 degrees above the horizontal. towards a spring attached to the start of the plain. when the box hit the spring its velocity is V(0). the box continue moving for another 0.1m until a complete stop. *...

I propose the following self-test to determine whether your reading comprehension is high enough to engage in rational discussion on a message board: Get a copy of an old verbal SAT (these can be found in one of the books "10 SATs"). Find the passage reading comprehension sections, and do...

so how many other people on this board have been diagnosed with such condition? (blank stare for 5 minutes) ok. please reply

This is space to start writing up and discussing ideas, structure and content for a possible Physics Homework FAQ type of sticky thread. Note : This is an attempt to implement marlon's idea in the Feedback Forum

Truth a fact that has been verified; reality - actuality That's my definition. But how do you get past those who say that the truth is a statement merely accepted to be true. And is there absolute truth? I am typing. Is the above an absolute truth? I believe, it is at least true...

I have been having a discussion with a friend for the past few days, and we are in sort of a stand still on a problem. We would greatly appreciate some input into our discussion. The question is this: A hollow spherical object weighs ten pounds with a certain density, and size floats in...

I've setup this thread to discuss organ donation. Tell us of your views on organ donation. Would you donate organs(all of them??)? why? why not? I would really find it helpfull if someone could provide insight into why some people refuse to donate organs. If you are willing to donate your...

I went through the last 120 threads and counted how many times each person posted a response here is the final count: Moonbear 672 Evo 402 tribdog 399 Gokul 322 Artman 209 franz 17

This is a serious thread (in the GD forum...well, I couldn't think of where else it should go) dedicated to all of my Thrasymachuses out there (most recently, and most poignantly, Fliption). It has been said (throughout my long time here) that I am argumentative, not open to any agreement...

I'm not sure if this is correct spot for analysing the logic in the climate change discussion. But it's about logic and not about global warming. So we give it a shot. Let's meet Stephen Schneider I will not comment here, that would be risking poisoning the well. Only notice that SS is a...

This thread is a continuation of a discussion that went off topic on the thread "Can You Prove You Exist?" on the General Philosophy forum. I am doing the honors of starting a thread specific to the subject of the discussion, which was obviously free will. Here is the short discussion: As...

Hi Everybody, I hope I'm not being too simplistic and I don't want to stir up a religious debate. We have just derived Einstein's G Law in my graduate course and after seeing how many assumptions we make, it's amazing that so much of our understanding of physics is based on GR. I am left...

Does anyone know of any? I am thinking of putting a hard drive with an old processor and mobo in my car. Then hooking up the deck to the sound card. I have enough knowledge of computer hardware and software to do so, but i would like to find a forum where i can ask questions if i have any during...

Expert in finance and fish. And multilingual. Does that make him an expert on observations of optical efffects in the open air?

No-- I haven't forgotten about the forum Marcus I actually have been working with my hosts about being able to instal latex I finally got an answer and they said it would cost 50 dollars... I however also got an offer from a friend to use some of his space and he would allow me to...

A lot of people are new to PF and General Discussion. We have some very creative people here and I think some of the better threads deserve another look. I will be posting some of my favorites here. Anyone that remembers a great thread, let me know. Here's the first. Patent #...

There's an interesting text on Many Worlds, http://www.anthropic-principle.com/preprints/manyworlds.html and I'd like to discuss it. There are 2 aspects with many worlds that I do not fully grasp. The first one, the more technical one, is how the correct probabilities emerge in MW. But...

The following is a discussion paper I wrote some time ago. It suggests a change in attitude to the treatment and possible therapies available for persons suffering mental Illnesses. At first glance it may appear to be rather radical but actually it is quite conservative. Cognitive behaviour...

I was wanting to open a discussion on the nature of violence. What is it? To me violence is a statement of self nihilism: Nihilism is defined in the old webster as : "Negative doctrines or the rejection of all religions and moral principles, often involving a general sense of dispair...

Anything you want to say to the world, say it out loud. ANYTHING! :biggrin:

Here is a careful discussion of fiction, imagination, and what it would take to make Chalmer's zombie argument valid.

I'd like some comments on some things mentioned in another forum, if you would. Thanks.

This thread is intended for any discussions or the answering of any questions relating to this thread.

http://www.edge.org/discourse/landscape.html the December 15 2003 issue of Edge has an interview with Leonard Susskind (many anecdotes about beginning of string theory) and a discussion including remarks by Lee Smolin and Paul Steinhardt the above link is to the discussion including...

My humble apologies to those people involved in the "Saddam Capture" discussion. I am also sorry for creating havoc with my posts and opinions. "United we stand . . . " ---------------------------------------------------------------------- Although I do not agree with Adam's opinion, I...

This thread has two purposes: 1) Can anyone tell me of a site (or sites) that deal with the accuracy of the science in modern movies? 2) If anyone would like to discuss, take apart, or ask questions about the science of any movie, they may do that here. As always, any and all...

i would like to begin a discussion on consciousness. some important questions about it are: 1)what is consciousness? 2)is it unique in humans or do other animals have it? if they do, upto what degree? 3)how and why did it arise? 4)how are humans(and other conscious animals)different from...

Anybody have any thoughts on Sorce theory?

I'm just opening up a forum on the topic, what does everybody think about music swappers and other file sharers? Should they be punished or is the computer the beginning of a revolution that should change the way internet copyrights are viewed?

There was a thread recently on the Overclockers Australia Forums concerning this topic. I personally identified with a lot of the comments and I thought I would post some of the more interesting ones here so that we could continue the discussion on PF. The whole thread can be found here if you...

Hello What does everyone think of the idea that matter can be out of phase with other matter dependent upon it's alignment. I have read some papers on this effect and want to know if everyone agrees with the basic idea and I'm curious to know if anyone has any idea how to take matter out of...

I have read many different explanations for the Mpemba effect. What is your take on it? What causes this effect? Let's discuss.

[SOLVED] A discussion about the brain. If there is no such thing as 'purpose' in the whole universe, then how can we say that the universe has bestowed us with our own sense of purpose? We have purpose in life. Even if that purpose is just to stay alive and enjoy life. So where does this...

Just a little question. I'm a little curious. In the classical sense, a reference frame in freefall would, of course, be said to accelerate. However, no forces are felt within a freefalling reference frame. Am I correct, then, in assuming a freefalling reference frame to be an inertial...