Running Definition and 386 Threads

Running is a method of terrestrial locomotion allowing humans and other animals to move rapidly on foot. Running is a type of gait characterized by an aerial phase in which all feet are above the ground (though there are exceptions). This is in contrast to walking, where one foot is always in contact with the ground, the legs are kept mostly straight and the center of gravity vaults over the stance leg or legs in an inverted pendulum fashion. A feature of a running body from the viewpoint of spring-mass mechanics is that changes in kinetic and potential energy within a stride occur simultaneously, with energy storage accomplished by springy tendons and passive muscle elasticity. The term running can refer to any of a variety of speeds ranging from jogging to sprinting.
Running in humans is associated with improved health and life expectancy.It is assumed that the ancestors of humankind developed the ability to run for long distances about 2.6 million years ago, probably in order to hunt animals. Competitive running grew out of religious festivals in various areas. Records of competitive racing date back to the Tailteann Games in Ireland between 632 BCE and 1171 BCE, while the first recorded Olympic Games took place in 776 BCE. Running has been described as the world's most accessible sport.

View More On Wikipedia.org
Recent contents Top users
  1. Y

    Man Running on a Train: Clocks and Velocity

    A train travels at a high speed v wrt the earth. A runner on the train sprints toward the back of the train at velocity v wrt the train. Clocks on the train should run slow compared to Earth clocks. The runner's clock should run slow compared to the train clock. Therefore the runner's...
  2. wolram

    Can an Old Engine Run on Modern Oils and Unleaded Petrol?

    Can anyone tell me if an old engine (50 years old) will run ok with modern multi grade oils, and unleaded petrol (without major modifications)?
  3. Astronuc

    Hackers get Mac running Windows

    :rolleyes: What is the world coming to? Hackers have managed to get Microsoft's Windows XP operating system running on an Apple Mac computer. The success ends a competition started to see if the feat was even possible when Apple unveiled computers that used Intel chips. The pair who...
  4. S

    Quantum computer solves problem, without running

    http://www.physorg.com/news11087.html I don't understand how they can do this:confused:.
  5. S

    Solving "bash:exec:hello: hello not found" Error on Suse Linux 10.0

    I just reinstalled Suse Linux 10.0 with GNome interface. I tried to test c++ with a hello world application. I compiled it like this g++ -o hello hello.cpp Although the compiler built the executable file, when I tried to run it from the shell using exec, it said bash:exec:hello...
  6. L

    How to Approximate the Force When a Leashed Dog Runs?

    My problem is as follow! A 45kg dog that is leached, starts to run and the line is all out when he have reach the speed of 20 m/s. The owner will experience a tweak. How do you approximate, this tweak? My thinking is that it depend on how fast the deceleration are, according to this...
  7. M

    Closing IE While Running a Game: Resource-Saving or Risky?

    question. Is it a good idea to use ctl+alt+del to shut down Internet Explorer while running a video game? The intent would be to save system resources. If it matters, the game is Fallout Tactics and I run windows XP. I tried it and it worked, except for the fact that I couldn't restart...
  8. wasteofo2

    Running up and down stairs to reduce creaking.

    Tell me if this theory of mine makes sense. The stairs in my house creak. Creaking is caused when you step on stairs. It makes sense to me that it should be quieter to run up and down my stairs, that they should creak less. Here is the reason. When you walk up stairs usually, you...
  9. recon

    Relativity - running person gains mass

    My physics book tells me: "A person who runs, and thus gains kinetic energy, gains mass (albeit negligible) according to Einstein's mass-energy relation." I do not think that any energy has been gained from 'outside' the system since the kinetic energy is derived from chemical energy that is...
  10. JamesU

    Why Is There a Lizard in My House and a Pig Hanging in a Tree?

    There's been a lizard running around our house, and we can't catch him. He's in my room now. I'm tired of it
  11. Z

    Too many programs running in background

    I have windows me would somebody please tell me how to check and see what programs are running in the background on my pc? also how to get rid of extra stuff I'm not using in the task bar. I close them but next time I reboot they're all right back again. I looked in the startup menu to...
  12. M

    Running real fast while holding a mirror

    Hello if you're running and looking at your own imagine in a mirror you're holding in your hand, how would the image look like? what if you were running at .99c ? and why?
  13. marcus

    The running of the spacetime dimension (AJL)

    we are familiar with the "running" of coupling constants, as for instance in QCD or even in QED where alpha (the electrodynamic coupling) is about 1/137 at long distances and low energies but increases to about 1/128 as energies increase and distances diminish. Who would have imagined that...
  14. H

    Calculate Energy Running: M x V^2

    Hello I was trying to calculate the energy in calories used by a man of weight M running at speed V. What would be the fastest way to calculate this? E = 1/2 (Vf^2) x M - 1/2 (Vi^2) x M (with Vf = final velocity and Vi = initial velocity ) Oh by the way I designed a simple program for...
  15. R

    Race Between Light and Runner: Who Wins?

    I found it interesting when i learned that no matter how fast you are traveling through space, you will alwys measure light to be traveling at the same speed. Then I thought of something: What would happen in this situation. There is a race. The two racers are me, wearing my "light speed"...
  16. H

    Calculate Time Difference: Tim vs. Rick Running and Walking

    Tim and Rick both can run at speed v_r and walk at speed v_w, with v_r greater than v_w. They set off together on a journey of distance D. Rick walks half of the distance and runs the other half. Tim walks half of the time and runs the other half. the time it takes tim to cover the distance...
  17. C

    Why Do We Feel More Refreshed After Running Than After a Car Ride?

    If u run for a distance, even though u r tired u feel refreshed. But if u travel in car, and u get out after 40 min u feel tired even if u didnt do any driving or any physical activity. Why?
  18. S

    Help running MikTex in Windows XP

    I have installed the program but cannot seem to execute any of the applications (like texify). Some websites list the following method for running MikTex in XP: "First, I prepare my computer as instructed by http://www.math.auc.dk/~dethlef/Tips/preparation.html . I changed all the "user...
  19. W

    Can You Solve These Challenging Static Equilibrium Physics Problems?

    ok, I have my assignment due by noon today and it is now 2:00am (I've been up most of tonight trying to get 4 questions done and they are all driving me insane) Of the 4, 3 are dealing with static Equilibrium So if you can Help with ANY of them I'll really appreciate it. 1) A rod of length...
  20. J

    Why does running make people feel better?

    Why does it do this? I read that endorphins are released in the brain, these are opium like chemicals that give a sense of pleasure, and after prolonged physical exertion of some sort they are released in large doses, why does that happen? Not just directly after or during exercise but hours...
  21. K

    How to view the current running connections to

    How to view the current running connections to... Hi All! I need some help. I want to view the current running connections of my pc, so how? Thanks a lot!
  22. T

    Running out of hair to yank out (tension)

    I've been stuck on this problem all weekend. yes, all weekend. no partying, no hanging, no general fun of any kind. What's so frustrating about this is that i just can't seem to get it started. A sedan rolled off the road and needs to be towed. In order to get the car on the tow bed, it is...
  23. F

    Running up some stairs, kiloWatts

    Ok, so I'm supposed to run up some stairs and then calculate how much effect (watts) I used. This is how I did it: Stairs was 2.52 meters high and 3.5 meters long, my mass is 72 kilos and I ran up the stairs in 2.72 seconds. Energy for moving up 2.52 meters: E_{p} = mgh =...
  24. R

    Running a Car on Hydrogen Made from Water

    OK I dead serious about this. Please check this out: http://www.truth777.netfirms.com/Conspiracy/carwater.htm So what is wrong with this? Is there anything wrong with this plan? Can or will it work?? If it will not work, can it be fixed? Like what is wrong with it? I guess...
  25. marcus

    Running Newton Constant (no dark matter)

    I admit that dark matter is apple pie and motherhood. I love Dark Matter just like you. But this paper has been accepted for publication in Physical Review Series D they did not post the preprint at arxiv until it had passed peer review and been accepted. this is a 72 page paper. we cannot...
  26. T

    I'm Thinking of running away, should I?

    Should I run away? I mean, if one is unhappy (to some degree) with the day to day routine of life, then why not? If i did, where would I go? Maybe to the circus. Nah, there aren't any to speak of anymore. Also, should I get a pole and a bandana and wrap my belongings in it (as i have seen...
  27. R

    How Fast is Time?

    How fast is it?
  28. W

    I'm holding a pole and running at a relativistic velocity

    Say the pole is 10 metres long. I run really fast into a barn that is 15 metres long. Say I run fast enough so that from my point of view the barn shrinks to less than 10 metres long due to length contraction. What happens to the barn now that my pole won't fit? The other problem is that...
  29. G

    Campus are running Microsoft Windows XP

    The class computers here on campus are running Microsoft Windows XP, with some very riduculous security measures. I suppose they are useful, but for someone who spends most of their time in the class labs and uses LaTeX for documents and Maple for CAS software, these security measures are a...
  30. Loren Booda

    Can Humans Run Vertical Loops? The Science Behind Running Feats

    Theoretically, can a human in 1g circuit completely a vertical loop solely by running?
  31. P

    Why is my computer running slow?

    My computer can run real slow sometimes. I try to do something as simple as open Windows Explorer and it takes a while to start up, too long in fact. But what is really really really bad is Kaza. Does anyone have Kaza? When that damn thing is running it takes forever to do something as simple...
  32. T

    Running programs in the background

    does anyone know how to run a console program in the background. This would be like the DNS or DHCP service that runs on a server waiting for a request. thanks
  33. P

    Looping without running out of memory

    I have just read a book about looping, and first of all, I would like to say sorry because my question is supid and will be really easy to you, I guess... But I am really new to computer, i honestly don't even know how to use WinWord correctly, it is an obvious truth. In my loop i run from 0...
  34. kat

    News Dutch in Crisis: Government Expels 20,000 Asylum Seekers

    Not being there...and only being privy to what I've read...I'm very interested in what others have heard or think about this subject: Dutch to expel thousands of asylum seekers and and I honestly am surprised to see this happening there...Why the big scare? what is...
  35. Greg Bernhardt

    Time Running Out? Curb Global Resource Use?

    Can we afford to curb our use of global resources? Can we afford not to?
  36. B

    What makes a liquid rhythmically jump in a running blender?

    What makes a liquid rhythmically "jump" in a running blender? What makes a liquid rhythmically "jump" in a running blender?
Back
Top