Tips Definition and 553 Threads

Hello everyone of PF. I am a 14 year old boy who just realized how fascinating and captivating physics, mathematics and science can be. I have decided, early as it may be, to study those 3 subjects and find a career involving them. I had been reserching for a website such as this one to help me...

Well i am at the last year of high school and school just started today. They scary part is that we have to get ready to apply for University with 3-4 months. However, before we get there i need help on studying skills and work habits as ill be honest i didnt have the best grade 11. Thanks...

Should I challenge my class with interesting puzzles, or drone on and crank out answers to standard problems? Any tips?

I'm headed back to school again this fall at the ripe old age of 30 and I'm discovering that my memory isn't what it used to be (not that it was spectacular to begin with)! It may have less to do with age, and more to do with a chronic illness that I suffered from in my late 20s that I have...

Hey all, This is my first year taking a real physics class and so far it's been fun. The class is AP-Physics B and it is algebra/trig based. I was wondering if i could get some tips from the pros at how to be better at physics, and maybe what materials should i buy to assist me on my learning...

My wife has 5 wisdom teeth that need to be removed (they haven't yet because we just had a baby girl 3 weeks ago, and we haven't had time). Well, all 5 are in really bad shape, and one of them has pretty much shattered and fallen out of her mouth, leaving just the root. Any time she tries to...

Are there any tricks other then adding X by Z in the multiplication chart? Like the one for ten. When multiplying a number by ten all you do is add a zero.

I am just beginning to learn about diodes and I was wondering if there are any tips to making the correct guess for the diode model. For our class, we use a model that consists of four regions instead of the simple on/off model. basically to figure out what the diode is doing, we insert the...

I was wondering what you should be familiar with before taking Calculus II. I just finished the Calc I summer class and was wondering if I should go on to Calc II this summer or just go over Calc I some more... I mean I can solve all of the problems that were presented but we hardly had any...

Yeah i want to learn some mathematical physics, since i can't just jump from my classes to that different section yet, but perhaps there are books or guides out there for beginners? If anyone knows of anything please let me know, Hawking and Greene can only take me so far lol.

i have a camera with the horizontal field of view as 40 cm, and vertical around 30 cm noted at around 5m from the camera. I wish to increase the FOV of the camera. Please suggest me a few ways to accomplish that. thanx

How long on each side do you guys cook your steak tips on the grill for medium/medium rare? I have cooked plenty of steaks, but never tips. They are marinating now!

Hey PF, Last time I landed on an airplane my ears hurt unbearably, and it lasted hours. I had tried yawning, swallowing, drinking, chewing gums, and the valsalva maneuver. After I got on the ground I purchased a milky way bar, ate that, and then ate a hot dog, french fries, and a pepsi. My ears...

I downloaded TeXnic center but I have no clue how to use it. Any tip? Websites? Its MikTeX.

I'm having one hell of a time writing my thesis! I'm writing it as I go because I like to think in terms of systems engineering (breaking things down into blocks). I'm certainly no where near done with my research; however, there are lots of stuff I have done that can be written up now. Our...

I have an exam today, a final exam. Usually I don't ask this, but its an physics exam so I will need as much as help I could said. With that said, I was wondering if you had any specific tips on taking a physics exam? Like how to dissect a problem.

Hey everyone, I'm in my final year in high school right now and I always seem to be stressed about physics. My other classes are fine with high 80's/90's, but with physics, I always seem to be in my low 70's o.o. I'm just wondering if some people have experienced this problem before and how did...

I find it rather tedious to calculate the eigenvalues of a 3x3 matrix. For example The \emph{characteristic polynomial} $\chi(\lambda)$ of the 3$3 \times 3$~matrix \[ \left( \begin{array}{ccc} 1 & -1 & -1 \\ -1 & 1 & -1 \\ -1 & -1 & 1 \end{array} \right)\] is given by the formula \[...

hey,pplease this is sort of just a random question, but does anyone know what the little plastic tip on the end of a shoelace is called? much appreciated tor

I'm trying to find the equivalent resistance for this circuit IIRC, it's a resistor ladder. I think I've seen this solved by working backwards, but I can't for the life of me remember how to do it now. I've tried rewriting the network in other ways to expose any series/parallel/voltage...

There was great input on Studying smarter, thanks everyone. Now when it comes to test taking itself are there any suggestions? All relevant input welcome.

Looking forward to going back to school and get that degree thingey over with. Will be using the summer on brushing up the old math skills. Anyone got a good recommendation for a calculus textbook that can jog my memory and bring me back up to entry level university speed? Thanks in advance!

I have to connect very thin wires d<40\mathrm{\mu m} of different metals multiple times to make a thermopile. Due to the geometry, the cost of the wire and personal nerves I do not have too many tries. The wires are insulated, and in the end the whole thermopile should also be electrically...

Hi, I am taking an electrodynamics course. The textbook we are ussing is Introduction to electrodynamics by Griffiths. We are taking it from chapter 8. I am having an extremely hard time in learning it. Can somebody recommend me a few good books, webpages to learn? Also any tips on how to...

Homework Statement So this Monday I will have a test, and I know for a fact that one of the free response questions will be a circuit with a combination of series and parallel resistors.So my question is can you guys give me some tips on how to do these successfully. I know that I need to...

I'm a first year engineering student in a Finnish University. I'm majoring in electronics, more specifically microchip and microprocessor design, and was thinkin to take my minor from something completely different area like economics. Currently I'm only aiming for masters degree. I know this...

Hexagonal ice?? Has anyone ever modeled hexagonal ice Ih using c++ before?? Or has anyone got any tips on how to visualize the structure?

I just downloaded this version, but the navigation bar on the right hand side does not show up, it flashes on for a split second then vamooses, hovering over it don't bring it back, is there some trick to get back?

Is there anyone who can help in anyway to study for the Praxis II Physics Content area. I have taken it and just need a little help on what is the best way to study and prepare for this test. Any help would be greatly apprecited.

Homework Statement Newspaper Boat- So I have been thinking about designing a newspaper boat out of pure entertainment. I want to build a boat out of shellack, tape, and newspaper, to maximize speed (to race people in swimming pools). considering i have some amount of these supplies, what...

Sometimes solving a circuit by KVL and KCL can be a little difficult. What tips/tricks have you gained from solving such circuits? i know that little tricks won't be as helpful as actually practicing, but they will help nonetheless. for example today i discovered it is not a very good idea to...

Astronomy for AS extended project need help! + tips! Hi i want know what sort of things can i include for a basic level astronomy. Despite doing physics I need some tips which i could include I am currently at college i will update it soon in more detail thanks

Homework Statement For whatever reason, I'm having issues integrating sin2(x) Homework Equations I can use U-sub, trig-sub, integration by parts, partial fractions, in any combination as needed The Attempt at a Solution My brain is failing me, so any hints would be awesome.

I have a problem in balancing the equation can anyone give some tips in balancing them.

Hey, I need to design somethign that rotates the holder drawn below, to a full 180 degrees and stops. And should be able to repeat that process as required. It should be also precise, that is, stop at the same place each time. Any ideas on how to implement this? needs to be cheap and...

Hey, For most of us undergraduates, it's that time to start a new semester of school. I was just curious as to what "rituals" you may have found successful in preparing yourself for a new term. Anything related to organizing yourself, overviewing the material in any particular way, talking to...

I'm currently in the process of searching for and applying to various REU’s and I would like to know if any PF members have participated in a great program and would recommend that I take a look at it. I have searched through the NSF database so I have a good idea of what's out there, I'm just...

Any tricks or tips on memorizing metric prefixes? I need to memorize from femto to tera & I've tried writing them out 100 times but it hasn't worked in the long run. (btw, is deca D~ or da~ there seems to be a discrepancy in my notes) thank you

I'm currently a freshman physics major at UIUC. I really want to do engineering so I'm thinking of doing a double major in Physics/Engineering (some sort). Due to an a lot of AP credit, I'm all finished with my general education requirements, leaving only math, physics, and engineering classes...

Hi, Can anybody help with this question? I have attached a scan rather than type it all out. Any tips would be appreciated as I'm unsure how to start it. Thanks

Hey, does anyone know much about knot invariants and the stuff? Including Fox Calculus, Alexander Polynomials, Reidemeister theory? Any helpful sites? Tips for learning about this subject? Also, what are quandles and how are they related? Thanks!

To prepare for the worst economic recession in 30 years, one should be learning how to cook, practicing your best pick up lines, ( 2 can eat as cheaply as 1), refrain from getting Disney mania, and avoid beds with electrical activity, ( one needs a good nights sleep for productivity), watch out...

I really need some tips on taylor series...Im trying to learn it myself but i couldn't understand what's on the book... Can anyone who has learned this give me some tips...like what's the difference between it and power series (i know it's one kind of power series), why people develop it, and...

Well I figure since the market is going to hell and a lot of stock are dropping in price across the board, this would probably be a good time to invest. But i am a noob concerning the stock market and was wondering if anyone would care to share their knowledge/tips on how to take advantage of...

Homework Statement I'm first yar civil/struc student, we have to make a balsa wood beam with marks awarded for the mass/beam weight ratio. Anyway I'm curious as to the best way to go about this. I'm aiming for the highest moment of interia in the y direction but would also like to be able to...

Homework Statement (note: this is not an easy question and will be marked very strictly.) Find the values of the constant a and b such that limx->0 ((ax+b)^1/3)-2)/x = 5/12 NOTE: you are not allowed to use L'Hospital's Rules for this question Homework Equations whatever you learned...

Question about how to study physics; general question all input is allowed:)THANKS Ok so I am a EEN major and while I know there are others with a lot harder course load I am taking...Vector Cal(252). university physics 2(242). arabic 2(112), and busniess course(business magt. is my...

yes, i just got a nice new macbook pro... how do i get all my music, important files, pics, etc from my pc to my mac?! lol sorry i came here to ask but any info would be great !

I could have posted this in design/systems engineering but thought I'd reach more user's this way. How could I get better with hardware? Should I be building kits, taking existing devices apart, living on www.sparkfun.com ? I wish I could be at the stage that I can take any idea and be able...

How to do bold letters and larger font with certain words in Latex?