Class Definition and 909 Threads

I like the Magnetix kits that are available in stores nowadays, and I'm trying to think of a way that I can use them in a 9th grade physical science class. Mindlessly playing and exploring with magnets is nice for a few minutes, but I'm looking for ideas to have mind-engaging lesson that will...

I have a class III laser that I'm doing experiments with. The laser makes a point on a wall. I am staring at this point for extended periods of time. I could potentially star at this point for upwards of 10 minutes at very close range(less than 12 inches). I can't really discern weather or...

A few of weeks ago after a dance class I got a really sore hamstring. I thought it was nothing. But three weeks later it is still sore. Have I pulled my hamstring? I don't know how I could have done it (I am very flexible from yoga and pilates and didn't do that much the night I hurt it) How...

During my calculus class yesterday we were learning about the simpler way of determining derivatives, but before that we were discussing arcs and parabolas and the such and eventually about if you fired a bullet up from the ground to the top of the empire state building and it had the correct...

I had a curious thought while writing a simple program that involved writing my own vector class (as in a mathematical representation of a displacement in n-dimensional space). I was wondering which way would be best to design the vector class ( language is C++ ). The first method was to...

IU-Purdue Offering "UFO" Class http://www.14wfie.com/Global/story.asp?S=5484305&nav=3w6o This is interesting http://www.clevelandufo.com/UFOeducators/home.html

...this might happen to you! :mad: http://youtube.com/watch?v=hut3VRL5XRE

Hello, I have to do a project for my political science course. It should be in the area of "design, implementation, and analysis of survey data; design, development, and analysis of voting technology." The professor said that he preferred that the projects that had quantitative data and...

1)Wiley Coyote is chasing the roadrunner yet again. While running down the road, they come to a deep gorge, 15 m straight across and 78 m deep. The roadrunner launches itself across the gorge at a launch angle of 12 degrees above the horizontal, and lands with 2.4 m to spare. The acceleration...

Q1. If j = square root of - 1 what is square root of j ? what I did was : Plug in the value of j in square root of j and came up with -1 to the power of 0.25. Is this right. Looks like this wrong. Q2. Given a complex number w = x + jy, the complex congugate of w is defined in...

I'm planning on going to grad school for soft condensed matter/biological physics. I'm generally interested in learning as much math as possible, but being a senior, I don't have much time.. I was hoping to hear some opinions/advises about which of the following courses would be most...

In Q[t], define the equivalence relation ~ as f(t) ~ g(t) precisely when f(t) - g(t) is a multiple of t^2 - 5. We define the addition and multiplication of equivalence classes as [f(t)] + [g(t)] = [f(t) + g(t)] and [f(t)] * [g(t)] = [f(t) * g(t)] (Assume: ~ is an equivalence relation...

"Polarized America" & "Class War Politics" As he often does, Paul Krugman hits home with poignant issue - economic disparity in America, and the politics which supports it - even thrives upon it. "Class War Politics" by Paul Krugman, NY Times, June 19, 2006 The poor don't have money, so...

Ok..tried to help a friend understand some of his homework..I haven't seen symbolic logic since college, but there was this one problem in particular that went something like..."Mr. X got a C on his final." and "Mr. X passed the class"...we say that these are represented by p and q...

I question the educational value of such an exam. We've been working out of Jackson this year, and based upon my experience the typical jackson problem (just one) takes at least two hours, even if you know what you're doing and make minimal mistakes (ie dropping signs, forgetting terms in your...

Since senior year of HS is wrapping up, my AP physics class is having a party tomorrow and I don't know what to bring. I could bring cookies, but that seems a little plain. Does anyone have any ideas?

Hi. I just started learning special relativity in my physics class. The prblem is i don't get this point. My teacher said that 2 inertial frames (A and B) where A moves with speed v relatively to B. He says that two flashes of light F1 and F2 occur when the 2 frames are at the same position...

My electronic class is almost over, <thank god>. Unfortunately, I have what I call a "barnes n' noble" book. You know when you walk into barnes n noble and you go to the science section and you see a bunch of math/physics/engineering books. You always pick one up to see what's inside, but you...

we were given this topic about soft drinks. The question is: Ideally, soft drinks are bottled under high pressures and are stored in a refrigerator in a closed container. Explain why these conditions ensure the best (i.e. least flat) beverage. Write an equilbrium equation in your answer...

Would anyone here recommend attending chemistry (high school) summer class online? My high school freshman wants to go to summer school, but it conflicts with marching band; therefore, she plans to take the class online. I suggest she takes world history, but she thinks it will be too much...

Ill be a 3rd-yr physics student next year, and due to course conflicts, Ill have to study one of these three math classes on my own (ie, without going to lectures). Which of these would be more useful for theoretical physics (probably in String, LQG and the likes): Analysis III - Real...

Last night there was a story on the local new about gas prices. During it they mentioned that some people have taken to putting nitrogen in their tires rather than air because they thought that it would improve their gas milage. The logic behind this? Apparently they believe... now get...

OK, I have a question regarding this homework that I have to complete about power and airspeed. I have a beech bonanza v-tailed aircraft and I need to calculate rate of climb in ft/min with a True airspeed of 110 knots. (110 knots = 185.7 ft/s) I am using R/C= (excess power)/weight My...

I am trying to get a jump on picking classes for next semester, I do not want a repeat of what happened to me last time (I waited about a week too long and I couldn’t get any of the classes/time I wanted). My problem comes when trying to choose a math class. Now that I have Calculus II...

Hello everyone; I've been reading a document over on Apple's Developer website, called "The Object-C Language." I'm reading about classes, and there is a part called "Initializing a Class Object" and it gives an example of how to implement an initialize method for a class: + (void)...

Would it be wrong if I dropkicked my stat professor in the head? This guys not teaching us jack @$%*! We have had 4 lectures as of tomorrow, and he has already assigned us three chapters. Chapter 1 is 51 pages, chapter 4 is 108 pages, and chapter 2 is 104 pages. :eek: He just shows some...

Well, I'm taking a Philosophy course because it is required to take some humanities and what not, so I chose this course because I thought it would be most beneficial and fun. Sadly, I was right! It is fun, and I enjoy every class. I might not do well, but I like it. We are currently...

My Nuclear Physics class this semester is using the textbook my professor wrote. It is out of print, and with good reason. Can anyone recommend a suitable undergraduate Nuclear Physics textbook which covers most of the basics at a reasonably advanced level? Looking at the usenet booklist Krane...

I wrote this class that works with a consol application. I'm sure you could add this to any other one of your programs like MFC applications. The way it works is takes in a whole string of garbage. any size, to an extent. this is not a string array. uses the include file <string>. For example...

My physics class rules. Reasons: 1: It's not a "school-required class", Which means that the speed of learning is adequate for not ripping my hair out in disgust. However, it IS a collegebound-required course, so I still have quite a few potential dropouts. Lucky for me, 5 kids've...

I recently did a presentation on autism for a class I had. Here are some interesting articles I found on it: http://brain.oxfordjournals.org/cgi/content/full/125/8/1839" About the fusiform face area in autism. http://brain.oxfordjournals.org/cgi/content/full/124/10/2059" Possible new...

Hi, we did a small respiration task in class and now I need to calculate a few things. I placed a bottle of NaOH in another bottle, together with a bottle of yeast and glucose. I did the same with another bottle, but without the yeast/glucose. Amount of glucose 0.2g. Now I need to...

So I'm on my school's debate team. The topic we're preparing for is stated as the following: "Resolved: In the United States, public high school science curriculum should include the study of the Theory of Intelligent Design." This is my case affirming the resolution, I'm arguing ID should be...

Seriously, what does it mean and why is it good?

I have to design a beam for my Materials Class design project to be tested on a univ. bending machine. We have to be within 2.5" by 5" in max size, and 24" long. I wrote a MATLAB prog to calculate every possible configuration to optimize what sizes to pick for a block, a T beam and an I beam...

Let n be a positive integer and suppose f is continuous on [0,1] and f(0) = f(1). Prove that the graph of f has a horizontal chord of length 1/n. In other words, prove there exists x \in [0,(n - 1)/n] such that f(x+1/n) = f(x)

Hi, Has anyone here used the complex C++ class before Header <complex>? I am trying to do something VERY straightforward but there doesn't seem to be any way to do it! Basically, I define a complex, and then want to re-asign its real and imaginary parts: complex<double> A(1,1); //...

My class just had our 10 year reunion. I'm trippin on how different and aged everyone looks. I mean the kids still hasn't all gone inside of me and I look at people I haven't seen since '96 and it's scaring me. I still have slear memories but a gap between then and now. Like everyone older...

If B - A = 1, Then A^2 + A + B = B^2. Good for figuring out an exponent next to one you know. Example: You know 50^2 is 2500, but need 49^2. B^2(2500) - B(50) - A(49) = B^2(2401). Make sense? Useful, useless, w/e?

I have this assignment from writing class that needs me to interview successful college students. Help I don't have time to do interview... can you guys give me some answers?! THANK YOU VERY MUCH! 1 WHEN DO YOU EXPECT TO GRADUATE AND WHAT IS YOUR MAJOR? 2 WHAT IS YOUR DEFINITION...

Yes. Who can honestly in their right mind every say they enjoyed taking IA? No wonder there is always a demand for analytical chemists in industry- its so boring probably no one ever wants to do it. ::sigh:: i just have to vent because I hate this class so much. :mad:

So, I just got this test back today...75. The avg was a 59 and the guy gave us a 10 pts curve so I got an 85, which is a B. Problem is, our teacher is a grad student (teaching a 300 level class) and I don't really like him. I lost 22 pts on one problem for doing a dumb mistake. I know it was...

Hey how are ya? I'm new to physics and all that I took a class in school and it blew me away! A lot of questions are popping up that my teacher can't answer. My first one is,according to him, pretty deep. Here it is; what is gravity? I mean what is it ? How does it work. I understand that it is...

Reading in a book called Introduction To Neuropsychology by J. Graham Beaumont, I found this symptom of a certain kind of parietal lobe damage that I'd never heard of before: "Apraxia Certain apraxias (the loss of intentional movements) may arise from parietal lesions. These may occur in...

Mixture problem example: You need parts of a 30% chlorine and 55% chlorine mixture to make 100 gallons of a 40% chlorine. mixture. To figure out what the ratio of 30 to 55 is: 55% - 40% = 15 parts needed of 35% mixture, 40% - 30% = 10 parts of 50% mixture. 15 parts of 30% reduces to 3...

I am currently enrolled in Physics 111 (at a university) without prior experience with the material. In high school, I chose to take biology classes instead of physics, which in retrospect was a mistake. I find physics very, very interesting and I am very intrigued. I feel like physics is the...

I always want to talk some with my profs about things beyond the scope of the course, but I am shy, and worry they will feel I'm wasting their time. Do you guys tend to do this very often?

complex analysis-- Oscillation/vibration class Hello all, I'm taking a wave/vibration/oscillation class, and we're delving into complex notation for these. One of our assigments dealt with a complex function that we didn't get a whole lot of practice out of in math methods. I've gone back...

Next week in my multivariable class, we'll be starting curvature, and, nerd that I am, I looked ahead to learn it ahead of time. I can usually at least understand the basics of a new concpet by myself, but curvature really threw me off. Maybe my brain's not right for it, maybe the book sucks...

I am mathematics major and I am considering withdrawing from 1 course this semester. My concern is how does having a Withdrawal on my transcripts look to graduate schools? I plan to go to graduate school for mathematics when I am done with my degree. I could stay in the course but I would...