Running Definition and 371 Threads

http://www.scientificamerican.com/blog/post.cfm?id=running-barefoot-is-better-research-2010-01-27 I haven't read the actual article (don't have access) but I find some of the claims a bit dubious. For one, they say that a heel-strike could lead to more injuries, but only because it is painful...

How do I install KDE when I'm running Windows XP? Hi, I am currently running Windows XP on my pc at home. In uni however, I use KDE. I would like to be able to use the same OS when at home too but still want to be able to use Windows when I want. Is KDE a separate version of Linux or do...

I read this somewhere on a physics forum recently What is meant by this statement? I spent a short while thinking about it but can't follow what the person is going on about. Maybe I misunderstood him, but he seems to be claiming that time dilation is actually an illusion.

Is anyone running Soliodworks 2009 on windows 7? I can't reinstall mine after i put windows 7 on, it just stops the installation batr and tells me to try again another time. Ihave never paid maintenance on my lisence, so will have to sort it myself. Anyone experienced problems?

1. Homework Statement : You are at the top of a hill that is 150 m in height and are traveling at 36 km/h when your car runs out of gas. Due to the relatively shallow grade, the road down the hill is 3000 m long. After rolling down the hill, the car continues to roll on a horizontal section of...

Does the piston ever "stop" moving in a running engine? well guys...does it?

Before I get flamed for this, I am not running a gasoline engine directly with normal fuel oil or veg oil- I made a gasifier. My gasifier is lame at the moment, but is just for testing purposes. It consists of a small fuel reservoir, suspended several feet up, then it flows down through about...

If you are running towards a mirror at 5m/sec, at what speed is your reflection moving towards you?

I've been working in class and I'm having trouble clarifying how these two (if at all) are related. Say we have a cantalivered (sp?) beam, prismatic cross section, with a point force acting at the centroidal axis of the cross section in the direction of the longitudinal axis. Will this create...

Hi, Newby here trying to design a small piece of lawn equipment in my shop. I want to design my own leaf blower using a small electric motor to turn the shaft of a squirrel cage blower. A friend of mine built himself this same system except he used an old lawnmower motor. It works great but...

I keep running into reports that within a year or so, the current system will be unable to sustain the rate of growth of bandwidth demand. Projections range from "the internet will become little more than a toy" (a paraphrase), to predictions of brownouts or other limitations. It seems that...

Homework Statement A child runs down a 13 hill and then suddenly jumps upward at a 17 angle above horizontal and lands 1.5 down the hill as measured along the hill. What was the child's initial speed? Homework Equations Unknown. Been trying to use trig to solve distances and as a...

okay i can compile the c file fine. but when i run it, its trying to connect through jtag and hardware. I just want to see the output of the compiled program! any1 know how? thankyouu verry much

Hi all, I am doing a project on the speed limit on human sprinting. I was doing a thought experiment and then got myself confused, so I hope you guys can help me out. I assumed that there is no air resistance, and that the coefficient of friction between the ground and the foot is...

Ok tell me if i understand this correctly: Object A is emitting light Object B is moving away from it at half the speed of light (constant speed) Object C is stationary Object B and C are 5 light years away from Object A (B just passes C as the light is initially emitted) the light...

Hello, can someone help me in programming our PIC16F84A, we need to make a program that will show only a three output like a traffic light,..but I am not quite familiar in programming this. I examined a 7 output LED program but i can't figure out what to changed.. I also want to changed the...

What is the difference between renormalized mass and the running mass? And physical mass,pole mass?

Homework Statement A woman with a mass of 51 kg runs up a flight of stairs in a time of 5.0 seconds. Her net upward displacement is 5.0 meters. What is her average power in kW? Homework Equations The Attempt at a Solution

I am trying to use an engine running at 900 RPM to power a generator that needs to run at 1800 RPM ( This will go through a pulley) My question is is half the available horsepower to the generator lost since the RPM's are doubled? In other words, do I need to double the horsepower of the...

On one trail I can run 3 miles almost continuously, with small 20 second breaks. However, when I get on the 8 mile trail, at about 4 or 5 miles into the run, my legs start to hurt very abruptly and feel really heavy. My cardio is good enough to keep going, but I'm unable to move my legs faster...

Why does running before jumping help you jump higher? The only explanation I could think of was that right before the jump you redirect your speed into the ground and compress your bones. This compression gets translated into an upward thrust when they expand again. What do you think? Thanks

I have a small problem with Internet Explorer. When I try to run many videos I get the message "You need to obtain Flash or JavaScript is not enabled." I have the latest Flash, so it is assumed that JavaScript is not enabled. I never had any reason to disable JavaScript, so I assume that it...

Homework Statement Man who weighs 915 N stands on a flatcar that weighs 2640 N as it rolls at 16.0 m/s in positive x direction. No friction. Man runs in negative x direction at 53 m/s relative to the flatcar. What is the resulting increase in speed of flatcar? Homework Equations...

on an x,y,z axis i have a wire with infinite length placed on the z axis with a current of 2A running through it downwards, in addition i have a magnetic field of 2*10-7T in the Y+ direction, what is the magnetic firld at A(1,0,0) B(0,1,0) C(-1,0,0) i know that my field at each point must...

Hello. I recently obtained a trial version of COMSOL, and was trying to run COMSOL with MATLAB. During the installation process, I clicked option "MATLAB interface" under the "Features" tab. After installing COMSOL, I could not locate the "COMSOL with MATLAB" folder in my Programs menu. Also...

I want to confirm that I'm thinking about this in the right way... Imagine a transformer. The primary has an integer number of turns. Now imagine the secondary has less than 1 turn, i.e., just a piece of wire passing through, forming essentially half a turn. I know voltage is induced in...

What is the longest continuous running experiment , By continuous i mean some equipment is set up and left to run, not some thing like CERN where there has been periods of down time.

I hope someone can help me out with a question I've been trying to answer for quite some time with no success A few years ago, Keninisa Bekele, the double Olympic Champ at 5 & 10km, won a World Championship 10km with incredible splits of 14:00 & 13:00 for each 5k for a final clocking of 27:00...

Hi I have an m-file which accesses another m-file at some point, but I don't want it to run the entire file. Is there a way to skip the first and last 10 lines of the file? I could just create a new file with the code I need, but this is like an addon to a programme, so if I could leave the...

Homework Statement A train of proper length L moves at speed v1 with respect to the ground. A passenger runs from the back of the train to the front at speed v2 with respect to the train. How much time does this take as viewed by some one on the ground? a) Find the relative speed of...

Hiya. I am able ot compile my program with no errors but when I run it I get the message: Error 112, Reference to undefined variable, array element or function result. I cannot see where I have gone wrong and more frustratingly this code was working, running producing results on the unix...

Homework Statement A runner hopes to compleate the 10,000m run in less than 30.0min. After running at a constant speed for exactly 27.0min there are still 1100m to go. The runner must then accelerate at 0.20 m/s^2 for how many seconds in order to achieve the desired time. *note* person does...

English alphabet has 26 letters. A word is just a finite sequence of letters. A sentence is just a finite sequence of words. A paragraph is a finite sequence sentences. It only suffices to say that there exists only a finite number of paragraphs possible (could be billions) but fewer yet exist...

hi there! I have the following sum: \displaystyle{\sum_{n=1}^\infty}(-1)^n\frac{(2z)^n}{(2n)!} and I want to let it run from n=0 to infty it´s somehow obvious that: \displaystyle{\sum_{n=0}^\infty}(-1)^n\frac{(2z)^n}{(2n)!} -...

heys..can anyone tell me..how could i run f90 codes in an f77 compiler..wht changes in the code do i need to make to do that?

arXiv:0808.0315 (cross-list from hep-th) [ps, pdf, other] Title: Can the cosmological "constant" run? - It may run Authors: Ilya L. Shapiro, Joan Sola Comments: LaTeX, 36 pages, extended discussion, typos corrected, references added. Sections 2 and 4 include our complete...

Hi there! I'm struggling a bit with running couplings. Srednicki introduces dimensional regularization and the \overline{\mathrm{MS}} scheme, then calculates a squared transition amplitude for some reaction in \varphi^3 theory. Eventually, he calculates the beta function for the coupling and...

Not sure if this is technical enough to go into another category. I have been running recently, and I can't find out if running shoes increase or decrease running speed as opposed to wearing no shoes at all. I have used google, but I am not finding the answer I am looking for.

Hi guys. I'm new to these forums, but have been wanting a place to ask questions like this for awhile. You all seem like a nice bunch (unlike the computer science communities I'm typically a part of) so I'd like to start off with a topic that's been bugging me for awhile. My father has a...

The type of compiler I am using is Dev-C++. I have no problem compiling my code and my compiler has generated no errors. However , when I try to run my code, The command prompt for like a nano-second and disappears and I have no idea of how to retreive it .

Inspired by http://www.news.com.au/story/0,23599,23696646-13762,00.html" . Would running before you spit increase the distance your spit travels? I figure, most of the energy comes from your mouth, and you'd probably stop at the end of your run, so would a "running start" increase the distance?

So my school semester is almost over. I took the following... Calculus II Physics II Chemistry II Linear Algebra I'm getting good grades (3.5-4.0), but I really need to go over the Physics text. We covered so much material that I couldn't keep up with reading the proofs and connecting...

I hope someone out there can help me out on this one. I have intermediate C++ experience, just a working level knowledge, however my prof. threw me a project to work on and where I am at now I have no experience with. So this is what's up, I have a massive fortran 77 program...that does some...

The length of a rectangular swimming pool is twice its width. The pool is surrounded by a cement walk 4 ft wide. If the area of the walk is 748 square feet, determine the dimensions of the pool. A= the total area bounded by the outer edge of the surrounding walk W= the area of the walk P=...

A 17m--long vine hangs vertically from a tree on one side of a 10m--wide gorge, as shown in the figure. Tarzan runs up, hoping to grab the vine, swing over the gorge, and drop vertically off the vine to land on the other side. What minimum speed must he be running?

Homework Statement A 62.7-kg woman contestant on a reality television show is at rest at the south end of a horizontal 141-kg raft that is floating in crocodile-infested waters. She and the raft are initially at rest. She needs to jump from the raft to a platform that is several meters off the...

Hi! I am using a a VISTA Premium system. When i write program containing graphs with turbo and i try to run it a message appears on the screen as " BGI Error: graphics not initialized (use 'initgraph')" . So can somebody tell me what's wrong with my system. Do i have to change it or i have to...

I would like to post a solution I found to a common problem, and invite comments from people who know of even better modifications. I have had major problems getting certain programs that run fine on XP to run on Vista. I have found that if before installing the program on a Vista machine...

http://www.theonion.com/content/news/bill_clinton_screw_it_im_running Edit: This is of course a joke and not to be taken seriously.

Hi- We're thinking of purchasing Gaussian 03 for electronic structure calculations. I think the basic license only allows for it to be run on a single processor. Can anyone recommend a decent desktop <1500 dollars that will do a decent job at running electronic-structure? I suspect that...