What is Counter: Definition and 223 Discussions

Counter-Strike (CS) is a series of multiplayer first-person shooter video games in which teams of terrorists battle to perpetrate an act of terror (bombing, hostage-taking, assassination) while counter-terrorists try to prevent it (bomb defusal, hostage rescue). The series began on Windows in 1999 with the release of the first game, Counter-Strike. It was initially released as a modification ("mod") for Half-Life that was designed by Minh "Gooseman" Le and Jess "Cliffe" Cliffe before the rights to the mod's intellectual property were acquired by Valve, the developers of Half-Life, who then turned Counter-Strike into a retail product.
The original Counter-Strike was followed by Counter-Strike: Condition Zero, developed by Turtle Rock Studios and released in March 2004. A previous version of Condition Zero that was developed by Ritual Entertainment was released alongside it as Condition Zero: Deleted Scenes. Eight months later, Valve released Counter-Strike: Source, a remake of the original Counter-Strike and the first in the series to run on Valve's newly created Source engine. The fourth game in the main series, Counter-Strike: Global Offensive, was released by Valve in 2012 for Windows, OS X, Xbox 360, and PlayStation 3. Hidden Path Entertainment, who worked on Counter-Strike: Source post-release, helped to develop the game alongside Valve.There have been several third-party spin-off titles created for Asian markets over the years. These include the Counter-Strike Online series, Counter-Strike Neo, and Counter-Strike Nexon: Studio.

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  1. I

    Electric Potential, Capacitance and charge of a Geiger Counter

    Homework Statement Find the potential difference, capacitance of the Geiger Counter and the charge on the anode. So, we have a Geiger Counter with low-pressurized neon inside. What we want is to have an alpha particle or electron to travel into the Geiger Counter with enough energy to collide...
  2. M

    Prove: Sum ai bi Converges if Sum ai & Sum bi Non-negative

    Hi Can someone please help me to prove or give a counter example is sum ai and sum bi are convergent series with non-negative terms then sum aibi converges I believe that if it doesn't say "non-negative terms" then this wouldn't be true. Am I correct? Since each of two non-negative...
  3. P

    Comp Sci Java Word Counter: Define Method & HashMap Return

    Homework Statement I have to define part of a method that will take in a String, segment the input into words, keep track of how many of each word there are in the string, and then return a HashMap<String, Integer> that shows how many of each word there are in the string. A separate helper...
  4. F

    Determining Counter EMF in Magnetic Fields

    In the example diagram I have provided how can the counter EMF produced by the conductor moving through the magnetic field be determined? I am assuming the field is uniform and that the velocity and current in the wire is constant. My logic tells me that there is no net flux cut by the...
  5. G

    Geiger Counter - predict counts?

    Are you able to predict precisely the count rate for a radioactive material? Why or why not?
  6. K

    How to improve synchronous counter

    Assume a synchronous counter with the following counting sequence: 0 -> 1 -> 3 -> 2 -> 4 -> 6 -> 5 -> 7 -> 0 1.Produce the above counter next state equations. 2.Using positive-edge D-type flip-flops, 2-input OR and 2-input AND gates, sketch the circuit diagram of the above counter. 3.Given...
  7. A

    4 Bit Synchronous Counter to use as 4 Bit ADC

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  8. R

    Back EMF: Explaining the Counter Voltage Induced by Change in Current

    Hi, I have a question about back emf So, my understanding of back emf (\epsilon_b=-L\frac{dI}{dt})is that its the counter voltage that's induced by change in current, whether it be from a battery or magnetic field (\epsilon_0). We can model this as an LR circuit where \epsilon_0 +\epsilon_b=IR...
  9. P

    Electrical DIY laser trip wire / counter / timer

    Hi people, please excuse me if this is the wrong forum to ask, I am new. I want to build a cheap DIY trip wire that records how many times it is set off. If I could use some sort of laser to be more discrete that would be a bonus (and just cooler). Also if it is possible to record the time that...
  10. M

    Counter ramp adc conversion time

    I know that the conversion time for an adc counter ramp is the time between the start and stop of the signal conversion, but how do i calculate this time? Also is the conversion time for the bi-directional counter ramp adc 1/2 that of the uni-directional counter ramp adc? Could someone kindly...
  11. R

    Designing a Modulo-16 Up/Down Counter with Grey Code State Assignment

    Homework Statement design an up down modulo-16 counter. use grey code state assignment, when x=1 the counter is to count up. when x=0 the counter is to count down. when the terminal cont of 15 is detected and the unit is counting up or when the terminal count of 0 is reached and the unit is...
  12. T

    Digital Logics Synchronous Counter with Asynchronous Reset

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  13. S

    Counter rotation theory problem

    Homework Statement A meter stick rests on two counter-rotating wheels. The left wheel rotates clockwise while the right wheel rotates counter-clockwise. There is friction between the meterstick and each wheel. The meter stick begins off-center to the right. What is the resulting motion of the...
  14. T

    Topology, counter examples needed.

    Homework Statement I need two counter examples, that show the following two theorems [B]don't/B] hold: Let X be a topological space. 1. If from the closeness of any subset A in X follows compactness of A, then X is compact. 2. If from the compactness of a subset A in X follows closeness...
  15. U

    Electrical Winding 1st toroidal transformer for my DIY Geiger counter

    First post! :) I am building a Geiger counter with this circuit: http://www.pocketmagic.net/wp-content/uploads/2011/03/geiger-simple-1b.jpg in the blog the author used a regular EI transformer from a power supply, but I tried disassembling them and broke the ferrite core 4 time now, so I...
  16. F

    Calculate Dumbbell Counter Weight for Correct Exercise Position

    Homework Statement Hi all, First post so please go easy :smile: I am designing a Dumbbell support that presents the Dumbbell to the user in the correct exercise starting position (1. Shown on the image.) . The problem I am facing is the counter balance to the support. The Dumbbells range from...
  17. A

    Synchronous counter digital clock

    Hi, I am trying to make a digital clock using a synchronous counter. Can anyone please provide me with a proper circuit ? I am having some problems when designing it myself. Thanks.
  18. T

    VHDL code for binary counter

    Homework Statement structure or behavior VHDL code of a 5-bits binary counter with a sync. load signal to preset the counter to a specific initial state. the output of the counter (Q0 to Q4) are connected to a binary decoder that shows the state of the counter.Homework Equations The Attempt at...
  19. Z

    Seeking a Decade Counter w/ 1 Input, 10 Outputs & Up/Down Clock

    Hi...can anyone tell me whether there is a decade counter which has only 1 input, 10 outputs and an up/down clock?
  20. C

    2 vectors what third vector is needed to counter bakance the first 2?

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  21. S

    Is FTL Communication Possible Through Quantum Entanglement?

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  22. P

    Is There Always a Solution for b^x - b^y to be Divisible by a?

    For any natural number a and b, with b > 1, two natural numbers x and y can always be found such that b^x - b^y is divisible by a. Until now, with many tries of a and b, I have always found corresponding x and y. I would appreciate if somebody could give me a proof or a counter example.
  23. J

    Counter Intuitive result for Surface area of Helical Ribbon

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  24. J

    Coincedence Counter in Double Slit Experiment?

    I have what I believe is a simple question about the single photon (at a time) double slit experiment. This experiment does not use a coincidence counter correct? I understand that one, or more, is used for entanglement experiments, but is one necessary to determine an interference or lack of...
  25. M

    Frequency Counter Design: Help with Latch Function & 7-Segment Display

    Homework Statement Hi, I need to design a simple frequency counter to measure the frequency of a square wave input (hence signal conditioning is not needed for now). I have understood the concept that the counter needs to count the input pulses for 1 second and display them on a 7-segment...
  26. M

    K-map for a 4-bit synchronous decade counter.

    Homework Statement I'm a bit at a loss here for a particular assignment we got for one of our labs. I've been using a certain method to derive the k-maps for some circuits, but for this particular one, it didn't really work out too well for some reason. We built and implemented a 4-bit...
  27. S

    Do we need a coincidence counter (for correlation) in delayed erasure?

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  28. R

    Trouble with 25 LED Counter Setup - Need Advice

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  29. C

    Derive \epsilon - NTU Expression for Double-Pipe Counter Flow Heat Exchanger

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  30. A

    Set theory proof - counter examples

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  31. H

    I need counter example for these statement

    Homework Statement [PLAIN]http://hh7.net/Apr1/hh7.net_13016941501.gif Homework Equations these statement are false and i need counter example for each one The Attempt at a Solution for(ii) i can say that f(x)=x2-4 on [-6,6] for others i need help
  32. B

    Counter example to a Sequentially Compact question

    Can you provide one to show a separable complete boundd metr. space X is not always seq. compact.
  33. P

    Why does a motor produce a counter emf?

    The title says it all. Please be detailed, the question is 6 marks. Thanks.
  34. E

    Designing a prime-number counter (up to 31)?

    Homework Statement The count sequence is: 2,3,5,7,11,13,17,19,23,29,31... Homework Equations If 31 is the highest number (N), then I found out I could use log base-2 of (N+1), or 5 D flip-flops The Attempt at a Solution I wrote out (painstakingly) the present/next table for all...
  35. E

    I designing a modulo-49 counter?

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  36. D

    Providing a proof or counter example.

    Homework Statement Prove or give a counterexample: for all x > 0 we have x2+1< (x+1)2\leq 2(x2+1)Homework Equations The Attempt at a Solution I used my calculator to do the graph of all 3 functions and saw that the statement was always true (at least for x>0). So I couldn't see another proof...
  37. V

    Can I find a BCD counter IC with separate up and down counting clock signals?

    hi, I wish to design BCD up and down counter circuit for my mini project. I planned to use IC 74LS192. Unfortunately i can't able to get this IC. There is any BCD counter ICs are available with separate up and down counting clock signals. Because i got some ICs for up and down counting which...
  38. X

    Counter examples to disprove mappings?

    give counter examples to disprove the following statements: a) a real valued odd function cannot be strictly monotonic b) a real valued periodic function must be odd or even c) a real valued monotonic function cannot be even a) sinh(x) ?? b) c)
  39. H

    Design a 5-bit Binary Counter for Homework Equations - No Quotation Marks

    Homework Statement 1)Design a counter that counts from 0 to 23 Then resets? 2)design a counter that counts as shown below: (1)to(5)to(7)to(8)to(2)to(3)to(6)to(4) in another way: 1-5-7-8-2-3-6-4Homework Equations I didn't know weather to use: 1)5-bit synchronous binary counter 2)5-bit...
  40. S

    Is this an asynchronous down counter?

    [PLAIN]http://img30.imageshack.us/img30/3306/counterty.jpg Is this an asynchronous down counter, or is it nonsense? (Assuming all J and K inputs are connected high) Trivial question, I know :-)
  41. M

    Counter Flip Flop: Analyzing Waveform Outputs

    [PLAIN]http://img713.imageshack.us/img713/853/98302269.jpg So I included the waveform I drew in the picture. The first one is the clock pulse, the second is the output from the T-flip flop on the left, and the third is the output from the T-flip flop on the right. I'm really not sure if this...
  42. M

    Understanding Divide-by-N Counters: Exploring Binary and Decimal Counting

    Homework Statement Fig (a) is a counter, fig (b) is a divide-by-N counter (0 < N < 16). The 4-bit input ABCD is (I think) what the counter counts to before resetting. Questions #1: For circuit (b): Say you want a divide-by-9. Why is it that to do this, the 2's complement of 9...
  43. J

    Help Understanding 74LS169 Binary Counter

    Can someone explain to me or refer me to a site that explains how to use a binary counter such as the 74LS169 4 bit up/down binary counter? I'm not sure what all of the inputs do.
  44. C

    Counter Clock Cycle: Ask for Help Here

    Hello, I want to ask, I have a counter 74193 or 74191, and I want to make it counts 3 clock cycles.. any ideas how to do? we suppose to use timer 555 right?
  45. R

    Can you think of a counter example (real analysis)

    Homework Statement X and Y are two closed non-empty subsets of R (real numbers). define X+Y to be (x+y | x belongs to X and y belongs to Y) give an example where X+Y is not closed Homework Equations The Attempt at a Solution i tried X=all integers and Y=[0 1] but that didnt work out. i know...
  46. J

    Spin Counter: Can a train's length really dilate?

    If we get on a train and time the train’s travel over 1000 meters, we can calculate the train’s velocity; v = dx/dt But if our watch is running slow, we will measure incorrectly and think the train was going faster than it really was. v’ = dx/dt’ We know that when something moves very...
  47. strangerep

    Non-convergence counter example?

    Non-convergence counter example?? (This question occurred to me in the context of quantum field theory, but since it's purely mathematical, I'm asking it here...) Consider the universal vector space \Xi of arbitrary-length sequences over C (the complex numbers). Denote \delta_k ~:=~...
  48. M

    Simple circuit completion counter

    I need a device with something like a 4-digit LCD or LED display which counts the amount of times its input and output contacts close. Basically, 1 count for each completed circuit. I was told things like these exist and are cheap, but don't know what to call it. Thanks in advance!
  49. D

    Thermodynamics: Exothermic & endothermic reaction in counter current flow

    Hi guys, I have a scenario here; let's say we have a exothermic reaction and a endothermic reaction going in co-current flow reactor (separated by a thin wall to facilitate heat transfer). At steady state after some time, from the concentration profile, we have the endothermic reaction going at...
  50. P

    QFT Counter Terms example calculation?

    I'm reading a QFT text right now and to fully understand the physical perturbation theory method I would like anyone to suggest a refrence or supply an example of a calculation using the physical perturbation theory: As an example to start a discussion consider. L = \frac{1}{2}((\partial...
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