Opinions Definition and 189 Threads

Hey all! Just wanted to hear some thoughts about this. My girlfriends sister currently works at NASA. I am not exactly sure what she does, something with cooling liquid nitrogen to temperatures at almost absolute zero. The thing is, she doesn't have a science degree. In fact she was picked...

Hi All, First post and very new to this. I'm a bit of a Tesla fan and have been experimenting with a few designs after viewing many theories on YouTube and various web sites regarding Tesla's radiant energy research. In a nutshell my theory is this:- What if we build the equivalent of an RF...

Hello all, This is my first post here. I'm a junior in high school, and I've begun the long process of deciding a major/college. I've visited a few (Michigan, Duke, UNC, Vandy, Georgia Tech) and have been impressed by most. To keep this as short as possible, I've been interested in aviation...

Taken previously? Right now does a calculus 1 class , seem easy to you, compared to when you first took it? Usually when you take math classes they seems kind of daunting at first and then when you do math beyond that what seemed kind of perplexing at first becomes super easy? Opinions?

I've been doing a lot of pondering and research here lately, and the idea of Biosociology has really become an interest of mine. I'm a Sociology major in college, and I've been looking into various sociological theories and such. I've noticed that Biosociology, and especially Sociobiology, have...

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

Unfortunatley I am getting cold feet in my goal in becoming a engineer... Why, you may be asking, is because everyone I talk to seems to think I have no chance in becoming one! I am a visual learner. Math is also difficult to learn sometimes, Is engineering really not for me because of this...

in my simple opinion the red shift is caused by the increasing distance of the light source and the light destination. its accepted by everyone that light has a constant speed in space, but i think that the constant speed is relative to the source object (kinda like sound). so to keep it simple...

Opinions of "Fundamentals of Physics" textbook http://www.google.com/products/catalog?q=fundamentals+of+physics&rls=com.microsoft:en-us&oe=UTF-8&startIndex=&startPage=1&um=1&ie=UTF-8&cid=17779640656174386744&sa=X&ei=6MJvTYC_DoussAPG08XRCw&ved=0CDQQ8wIwAw# Do any of you have experience with...

Just curious who everyone ranks as the best intellectual physicists in Australia

Hey I recently did an experiment on the absorption of gamma rays I calculated the thickness and the no. of counts, got a nice exponential curve. So, I used lead as the absorbent or shielding material for gamma... Any suggestions what else I can use for gamma? I thought about sausages or...

I hope that I'm posting in the right forum, if not then I would appreciate if a mod would move the thread. Thanks. Many minivan-type vehicles have a third row of seats behind the rear wheel. I understand that this is the crumple zone of the vehicle, i.e., this is the area that is specifically...

I've never had a job before and I'm applying to Fred Meyer online; problem is, I don't know which positions I should apply for, so here's a list: Apparrel/Shoe clerk Bakery Clerk Cashier Coffee Barista Courtesy Clerk Deli Clerk Food/produce Clerk Grocery Clerk Health/Beauty Aid Clerk...

Unfortunately the piston has disintegrated so we are unable to use that to form an opinion on this failure. Please let me know your thoughts, thank you! http://www.maperformance.com/gallery/pictures/rodfailure1.jpg [PLAIN]http://www.maperformance.com/gallery/pictures/rodfailure2.jpg...

Hello All, Whilst searching for masters level courses in theoretical physics, I found out that not only are they offered by a lot of universities in the Netherlands, but there are some rather nice scholarships that can be applied for. Therefore, I seek people's opinions about the following...

Okay, you know how the maximum entropy can only stay the same or increase given time. I am talking about entropy in the sense of heat (Thermodynamics) where its measured as the amount of joules that actually do work. What if energy with maximum energy is converted into matter and then converted...

My first post, a long term reader though and apologies if this has been dealt with elsewhere. I did several searches to no avail. I would be very interested if any with the relevant knowledge would be willing to give opinions on the veracity of the claims Lanza makes in his book "Biocentrism...

Hello there this is Arch. I just enrolled not long ago in a college with an intention to major in physics, but ironically the first term's results got me worrying. It's a pretty simple matter really, I got an A- in Calculus I (they rate that as a 3.75/4.0 gpa) and I started questioning my...

Hi PF, I've always been raised on the model that superior schools produce superior humans, and I should sacrifice the moment to get into the "best" possible schools. Personally, I still believe that those best schools could be highly influential career-wise. Stats don't lie, the majority...

Hi, guys. This is my schedule for the coming up fall. Appl Differential Equations I Intro to Number Theory Foundations of Math Advanced Calculus I I know it will be challenging. Do you think I should take all these classes at once or should I drop the Advanced Calculus I? Any thoughts...

So a professor of mine and another student were having a discussion about the PGRE the other day. While it does seem to be of the overall opinion that it is only good for determining how well a student can take the PGRE and not really how good they are at being a physics student, I've come to a...

Can someone give some opinions on the following? The 2 main arguments from this site i can tell are: that hawking radiation isn't proven. And that high energy collisions in the upper atmosphere travel at a fast speed & the small black holes can escape from Earth unlike in the lhc. I...

I'm currently applying for 1 year postgraduate courses in Theoretical Physics at the following universities in the UK: Durham - Physics Department Imperial College London - Physics Department Kings College London - Maths Department The aim is to hopefully go on to a PhD after one...

Hello. I signed up to get peoples opinion. See, I have no one to talk to about my situation or quantum physics, so here it goes. I am 23 and have no school experience. I am a natural at computers, but my real passion of course is quantum physics. When I learned about quantum my whole entire life...

Last week I saw this documentary on PBS/POV: http://www.pbs.org/pov/matador/" And then I fell in love with this: So now, during the past week I have talked to people around here about the subject of bull fights. The overwhelming majority shuns it, bringing in arguments like "it is...

I'm going to mess around with some Python and was wondering what free libs I should consider. So far I've got: GUI - Tkinter Scientific (mostly signal processing for me) - SciPy Are these OK? Any opinions? Other libs you like (gaming, sound, hardware control & networking, etc.)

witricity -- I'd like some opinions Witricity is the name of a company that hopes to sell wireless power transfer. I question their basic physics, and I'd appreciate any comments. I have no commercial interest in any of this -- it's purely an academic exercise. Also, I'm not trying to rip this...

Hello, I would like to pursue a career in Robotics. I am aware of the various options in this but have not yet decided which path to follow(i.e. Research, Development, etc). Some of my favorite subjects in school include Maths & IT. I am also quite comfortable with Physics but absolutely cannot...

Hello again everyone. I just finished making a diagram to plan out a possible physics major/math minor and I would appreciate any advice anyone can give me. The courses are arranged with math on the left and physics on the right, with arrows pointing out the flow and pre-reqs and such. Each row...

Are you guys in favor of keeping it or abolishing it? Sorry if this is somewhat not related to math/physics but I'm trying to get opinions from both sides for a report.

looking for opinions: does it worth having a Master ?? i have just finished my degree on physics but i was thinking about doing a Master degree in Physics or mathematics but does it worth ?? , i mean in order to get a better job or get access to a research grant.

So, has anyone got any interesting experience or opinion to share? I, myself, am currently fighting with the bureaucracy of UCAS to apply to the University of Strathclyde in Glasgow, where my main priority is Electrical and Mechanical engineering, and I feel thrilled. I really want to go and...

What do you guys think about hybrid rocket engines compared with other the other kinds? What are the advantages of using one as opposed to a pure solid or liquid rocket?

I'm leaving it to me to start a thread on cars, I hope I put it in the correct part of the forum. None the less, I'll start with a point than I'll start to ask a few questions and expect some opinions and answers. I can't drive automatic. No, it's not a type or a joke, I just can't do it. I...

I am writing an essay on determinism, i was just wondering what peoples opinions on it are, my argument is going to be that it is possible, but i would like to include other peoples opinions and reasons. Thanks Steph.

I wanted to throw out a question and see what some general consensus/opinion on the Polywell fusion power system is. After I first read about the precursor (Farnsworth fuser) and was initially interested greatly as I had similar thoughts before really researching fusion. Personally, I'm...

I am planning on finishing my Ph.D. in physics in 2009 and am thinking of going directly to teaching which means probably I will end up teaching at a 'community college'. I am interested in people that have done this or are doing it, the good and the bad sides of the job. Please send me PM if...

I was reading the thread about favorite movies and I was suprised at how different everyone's lists are. It got me thinking. People are different and like different things, but we are all humans and have lots of things in common. Is it possible that anything could ever be created that everyone...

I, by the first time, came across with the Axiom of Choice today, found it beautiful, of course. And I'm interested in seeing, ladies and gentlemen here, as mathematicians, what are your attitude towards that axiom, I mean, the stronger one (i.e. the infinite axiom of choice). For example, do...

Hey. As the title dipicts, is there any relationship between CFM and PSI, linear or non-linear? Any mathamatical relationship either? CFM (cubic feet per minute) is a volume over time, and PSI (lbs per square inch) is a weight essentially over an area. So I take it, there's no real way to...

Hello, newbie here. I am building a dual purpose (street/strip) twin-turbo 77 T/A. I plan to run a midplate between the bellhousing and the block which ties into the frame. The midplate will react the driveline torque to the frame instead of through the stock mounts, which bolt to the side...

I am absolutely enraged after looking at this years Intel Science Fair. I would like to start a legitimate discussion about this. Here is my main issue with the science fair; THE PROFESSORS. I know there are a few professor on this board and I would love to hear your opinions about my argument...

Opinions on the use of the expression "Quantum Leap"... It is an oxymoron, right? Quantum leap is the the physical distance moved by an electron when changing energy levels, correct? If you are making "quantum leaps" in technological developments, wouldn't you be going absolutely nowhere...

I am in need of some guidance concerning graduate school. I am a student in mechanical engineering at Oklahoma State University. Long story short, I made some awful grades my junior year because I thought art was my calling—turned out to be a big mistake. I passed 6 out of 24 attempted hours...

Ok I know there was a thread about apple computers somewhere along the line in GD but I will be darned if I can find it so for now I guess I will start a new one. Anyway, my HP computer is in the shop yet again and it seems like it spends more time being fixed than working so I am contemplating...

What do many of physicsforums members think about the on-line tutoring service companies? Good, bad, not legitimate, reliable, unreliable, honest, risky for tutor or for student?...? Anyone here had any experience with them either as tutor or as student?

Hi everyone, I have a question that I'd like to get some of your opinions' on. I'm currently making up my schedule for next semester, and I'd like to take an upper-division class aptly named "Mechanics" The course doesn't have a website, so I don't have a syllabus handy, but what concerns me...

I have some lp's I'd like to digitize. Anyone have any opinions on USB turntables such as these?: http://www.buy.com/retail/searchresults.asp?querytype=home&qu=usb+turntable&qxt=home&display=col&dclksa=1

I was wondering what you guys think of my textbook. My textbook is called: A First Course in Differential Eqations (Eight Edition) Author: Dennis G. Zill ISBN: 0534418783 I have been using this book for my DE class, and I do not feel like I am really learning anything. This class is very...

I was wondering what you guys think of my textbook. My textbook is called: A First Course in Differential Eqations (Eight Edition) Author: Dennis G. Zill ISBN: 0534418783 I have been using this book for my DE class, and I do not feel like I am really learning anything. This class is...