What is Thread: Definition and 570 Discussions

In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed independently by a scheduler, which is typically a part of the operating system. The implementation of threads and processes differs between operating systems, but in most cases a thread is a component of a process. Multiple threads can exist within one process, executing concurrently and sharing resources such as memory, while different processes do not share these resources. In particular, the threads of a process share its executable code and the values of its dynamically allocated variables and non-thread-local global variables at any given time.

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  1. M

    How Can You Solve Challenging Mechanics Problems?

    Can you help me with some of these questions? I can't do the second part of Q1!
  2. EnumaElish

    Soc. sci. thread with soc. sci. content

    Consider: space aliens have today announced in all languages that on January 1st, 2125, they will descend upon Earth and vaporize all paper and metallic money that is in use at that point in time. Given the above scenario, how much is the money in your wallet worth today? What is your...
  3. EnumaElish

    Why was all time fave books thread locked?

    Speaking of which: Evo, Can I borrow whatever SF classics you've acquired since the Philippines incident? :smile: Perhaps we can swap books, what do you say?
  4. F

    I hope this is the right thread

    Well anyways.. I'm currently a student at a High School. We have these "Scrap heap challenges" The idea of this one is to build a "Electromagnetic device" This one is to hold at least 5 grams of weight and maintain it.. After that we keep adding weight to see who's can hold the most With...
  5. B

    Schools Yet another grad school question thread

    I know these grad school threads have been overdone but nobody ask this question yet: Would it be fair to say that the grad school applications commitee looks at : 30 % gpa 30% GRE score 30 % Research experience 10% letters of recommendation?
  6. A

    Determining Thread Length Engagement for Optimal Boss Length

    Hi, Please help me in finding thread length engagement. Please find attaché image I have a product comprising of 2 parts fastened together. Hydraulic fluid is passing thru it. My inputs- load, size of the fastener used (ex: M8 X 1.5). My constraints are-the boss length should be...
  7. C

    Why Is Experiential Learning Essential in Math Education?

    Isn't providing a means for people to really learn from experience a good thing? I got a similar response when I mentioned it elsewhere. Please explain. I have looked at improving math education as a solution but this type of work it seems to me is the only way to provide an order of...
  8. Evo

    Christmas Thread: Santa, Reindeer, Elves & Yule Goats

    You can post anything to do with Christmas/Hannukah/Yule Goats, etc... here. No religious preaching, we're talking Santa and reindeer, elves, goats, socks and chocolate coins, ok? To start off, since my favorite video was deleted from youtube thanks to a company that misses the point of free...
  9. H

    Why is Pollack's art considered 'schizophrenic' compared to Kandinsky's?

    was deleted?
  10. G01

    Scolarship/School Thread in Career Guidance?

    I was just in a thread over in the Academic and Career Guidance forum asking if there was a special thread for listing possible scholarships. I noticed there wasn't one stickied, so I thought I'd ask to see if it would be feasible to get a thread like that stickied in that forum. I think it...
  11. J

    Scholarship Thread: Quantum Info Science

    Is there a thread/forum for science Scholarship advertisements? My supervisor has asked me to advertise PhD positions in Quantum Information science on the net.
  12. R

    Review of Thread: Speed of Balls Attached to Rod on Fall

    In this forum there was one problem. Two heavy balls of equal mass M are attached to long light rod. The rod is held vertical and allowed to fall, say towards right. What will be the speed of each ball just before the upper ball touches the ground. I can interpret this problem in three...
  13. W

    Can You Solve These Visual Brain Teasers?

    I so happen to like visual brain teasers. There's a lack, not to say a total absence, of these on this forum and I thought it'd be a good idea to start this thread so to undo the injustice. I was thinking maybe we could have some mods readily check this thread to validate image postings. That...
  14. F

    Young's modulus of spider thread

    Homework Statement Q 1. A spider with a mass of 0.26 g hangs vertically by one of its threads. The thread has a Young’s modulus of 4.7 x 10^9 N/m2 and a radius of 9.8 x 10^- ^6 m. a) What is the fractional increase in the thread’s length caused by the spider? b) Suppose a 76 kg person...
  15. P

    The Drunkard Thread: Ignorance is Bliss?

    With all the brains about. I know most of you drink to your misery. Ignorance is bliss eh?
  16. moe darklight

    What was the significance of the pale arm in my dream?

    this has probably been done before, but I love talking about dreams! everyone has all sorts of cool dreams, and for some reason it's not something that people talk about nearly enough! my friends always want to hear my dreams (I have really really weird dreams), but then they never return the...
  17. J

    News No thread on the terrible events going on in Burma/Myanmar?

    No thread on the terrible events going on in Burma? What can be done about this situation? The dictatorial junta have even tried to close off all internet connections so the innocent can't report the slaughter of their fellow protestors. If there's a country which the West should show a...
  18. O

    What did you do today? (a corollary to the thread What do you physicists do? )

    what did you do today? (a corollary to the thread "What do you physicists do?") I thought it might be interesting to take a sociological approach to the question raised by Pivoxa in this thread - https://www.physicsforums.com/showthread.php?t=186911 So what do physicists actually do on a...
  19. BobG

    NFL '08: Three Game Winning Field Goals in 2 Minutes

    No thread yet on the NFL? Between two channels, three game winning field goals in less than two minutes. Denver-Buffalo was first and best. They made a first down and could have spiked the ball to stop the clock. Instead, they rush the field goal team out with about 10 seconds on the...
  20. H

    Cheeky99: Solving ydy=(-x+ √(x^2 + y^2))dx

    (Separated from another thread) Hey i need some help finding the general solution of ydy= (-x+ √(x^2 + y^2))dx by using the substitution y= vx and then the substitution u^2= 1 + v^2 It would be great if someone could help.
  21. Q

    Acoustics? (Yet Another IB Extended Essay Thread)

    Hi there, I'm sorry if this sounds incredibly vague, but I'm having difficulties narrowing down the research question for my Physics EE. I'm sure of the field I want to do it in: acoustics. The problem with most experiments involving applied acoustics (ideal room sound, etc.) is that, unless...
  22. I

    Calculating Shear Stress for Thread in Hydraulic Press

    Shear thread formula? my group has been told to figure the shear stress of a thread for a hydraulic press which pushes at 100t, we have figured it will pull at 30t using the ratio of the areas from the pistions. just we need to figure the shear stress on the thread if it was to pull. we don't...
  23. Astronuc

    Construction DIY - Home repair and renovation thread

    Well we have a food thread, a gardening thread, a wildlife photos thread, a best music/tunes thread, . . . sooooo :biggrin: Why not a practical DIY = do it yourself thread for sharing tips and info on home repairs and renovation. My home has a drainage problem. In a relatively dry area...
  24. marcus

    Surrogate Cosmic Variance Comment thread

    the Cosmic Variance blog has changed format and eliminated a nice feature that used to keep discussion threads alive. on the righthand margin of front page, it used to list which posts had recent comments and, in small font, WHO THE COMMENTERS WERE so if some interesting people, such as Lee...
  25. Q

    What happened to my physics thread?

    ok well what happened to my thread i just requested sum help is dat to much to ask sorry for bothering u guys i just needed sum help thanks for nutin yeh i waited to the last minute but no ones perfect thanks for letting me fail and not even giving a beep
  26. N

    Left Hand Thread 3/8-16 Full Thread Tap Bolt 1/2" Long, No MOQ?

    I need a 3/8-16 full thread (Tap) 1/2" long hex bolt with a left hand thread. Anyone know where I can get one without paying a minimum order fee.
  27. D

    What is the most viewed and replied to thread on the internet?

    hi every1, I am looking for a world title for a thread with most views and replies ever since the internet came into being.
  28. P

    How Much Force Keeps a Car on Track in Circular Motion?

    Hello all, I also have a calculus thread in the appropriate forum- I wanted to have a separate physics thread in order to make things a little tidier around here! A quickie: A 1,200kg car turns a corner at 8ms^-1 and travels along the arc of a circle radius 9m in the process. How large...
  29. L

    What is that on the thread status icon?

    looks like a cartoon bomb? one more thing what's with the additional rectangle icon on the right hand side?
  30. P

    What is the Calculus Thread for Clippy's Calculus Help?

    Instead of cluttering the forum with all my cries for help, I decided to condense them all into one! First, I know this is basic, but I just can't seem to figure it out: Int (x^2+1)/x^2 dx Intx^2/x^2dx+Int1/x^2dx x^3/x^3+x/(x^3/3) ?? Thanks in advance!
  31. Z

    Any Hidden Goodies for Tablet PC Owners?

    Hi. I recently got a Toshiba M7, and been playing with it for some months now. What I've found is that the hardware is neraly there (calibration is my biggest complaint), but the software is really lacking. Currently I'm using Windows journal because OneNote 2007 is fu**ing slow. Anyone...
  32. B

    Calculating Total Energy and Speed of a Ball on a Thread

    I need with a problem...A 0.10 kilogram solid rubber ball is attached to the end of an 0.0 meter length of light thread. The ball is swung in a vertical circle. point P, the lowest point of the circle, is 0.20 meter above the floor. The speed of the ball at the top of the circle is 6.0 meters...
  33. turbo

    The I wouldn't eat that on a bet thread.

    The "I wouldn't eat that on a bet" thread. Inspired by Evo's recent purchase of a "food" product made with a lot of water and that may or may not actually contain ham, and her adventures with "jerky" made from a meat paste seasoned with pre-packaged spices (and God knows what else), I am...
  34. E

    The Best Textbooks for Self-Study Thread

    Hi, I notice that there are many self-study students here on PF so I thought it'd be a good idea to make a quick reference of great books. Please add on as I'm currently only at the precalculus level. These books should assume relatively little to no prerequisite knowledge, explain concepts...
  35. W

    Thread Torque Specs for 3/4-14 NPSM S.S. & Aluminum

    Hi -- Does anyone have torque recommendations for a 3/4-14 NPSM thread for S.S. and Aluminum? Thanks! Eric
  36. P

    Why Do These Math Jokes Make You Groan?

    i got some math jokes on my cmoputer. Some are alright, most are terrible. Ill keep adding some periodically. Feel free to post your own. Whats purple and commutes? An abelian grape. (i have no idea what that one means) Q: What do you get if you divide the cirucmference of a...
  37. S

    Cant someone start a tutorial thread?

    Cant someone start a tutorial thread? Cant someone start like a tutorial thread? :confused: Looking at the potential here :bugeye: , if we could start a tutorial on a topic, maybe under a separate subdivision, and post there (not problems but different concepts that each one could bring out)...
  38. R

    Exploring Tension: The Minimum Force to Straighten a Rope

    Here, I have a question. 2 persons are holding a rope of negligible weight tightly at its ends so that it is horizontal. A 30 kg weight is attached to the rope at the mid-point which now no longer remains horizontal. What is the minimum tension required to completely straighten the rope...
  39. S

    LaTeX Where to Post Latex Questions When Tutorial Thread is Locked

    So, I have a question about latex, but the thread in the tutorial section is locked. Is there another place I should post it? Anyway, the question is, is there a nice way to do commutative diagrams with latex? I'm talking about those pictures with sets and arrows between them representing...
  40. Schrodinger's Dog

    What's your biggest pet peeve right now?

    Everyone has those little niggles that really p you off, spelling nazzis, people who listen to I-pods on trains at a volume whereby everyone can hear the music, the lyrics and anything else, I don't like hardcore dance at the best of times, but at 7 in the morning, I really could do without out...
  41. radou

    Welcome to 2007: Your Questions Answered

    Since there are only 20 minutes until 2007 in my time zone, I'll report back from 2007 to everyone who isn't sharing the same time zone and say what's it like in 2007. Any questions about the changes in the world shall be answered. :biggrin:
  42. D

    Another light thread more electromagnetic

    I just hought about it, and why is there not a correct definition of light? Some says they are particles, others say they are waves. Some say they are energy "packages"... If they are waves, they need something to travel through, as i understood as the elecromagnetic field that is...
  43. D

    The random thread of randomly randomivity

    time to kick off a game of smurfball here...post your randoms as per the uge! :smile:
  44. MathematicalPhysicist

    Limits, yes another limits thread.

    i need to compute lim (a^n-b^n)^(1/n) when a>b>0. lim ((3n)!/((2^3n)n!(2n!)))^(1/n) where i need to use the lemma that: if an>0 for every n, and lim(x_n+1/x_n)=L then lim x_n^(1/n)=L, how to use it here? for the first i used practically everything i know, the formual for a^n-b^n, and the...
  45. C

    Projectile Motion (ignore previous thread)

    Im trying to figure out this problem, but I am not sure if I have the equation(s) I need. "A ball is thrown horizontally out the window of a building with a velocity of 8.0 m/s from a height of 2500 m. How far from the base of the building will the ball land?" a) 54 m b) 60 m c) 90 m...
  46. S

    Top Textbooks for Quantum, Linear Algebra, Real Analysis, and Electromagnetics

    Another one of those annoying best "text" threads...If you would kindly have the patience to tell me about your experiences, that would just be dandy. Best Quantum Text: Shankar or Sakurai? Best Linear Algebra Text: Axler or Friedberg? Best Real Analysis Text: Rudin or Royden? Best...
  47. A

    Mistake on other thread, Here is the problem:

    Ok sorry about that, here is the actual problem: g(x)=sq.rt.(2-x) Find the inverse of g(x) ok the answer is -x^2+2, but how come the domain is [0,infinity)??
  48. A

    Mathom Thread: Unveiling Modern Gifts of Appreciation

    Inspired by Zz's regifting thread, I would like to ask: What would be the typical mathoms of our time? :smile:
  49. L

    Official College Football Bragging Rights Thread V2.0

    That's right folks, college football season has finally arrived. So declare your allegiance, talk some trash, and gang up on any USC or Ohio State fans. Are there any Notre Dame fans out there? It's ok if you're afraid to come forward because you know your team is overrated and is going to...
  50. F

    Surprising Thread Lock Leads to Realist Reminiscing

    Wait a minute... A thread in GD locked for being pointless? Uh oh... No thread is safe! :eek: :eek: Sorry. I just thought it was really funny. :smile: :smile: That said, I don't think a meeting of local realists would fill a phone booth, given the strong blows to that...
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