What is Pin: Definition and 163 Discussions

A pin is a device used for fastening objects or material together, and can have three sorts of body: a shaft of a rigid inflexible material meant to be inserted in a slot, groove, or hole (as with pivots, hinges, and jigs); a shaft connected to a head and ending in a sharp tip meant to pierce one or more pieces of soft materials like cloth or paper (the straight or push pin); a single strip of a rigid but flexible material (e.g. a wire) whose length has been folded into parallel prongs in such fashion that the middle length of each curves towards the other so that, when anything is inserted between them, they act as a clamp (e.g. the bobby pin), or two strips of a rigid material bound together by a spring at one end so that, when the spring held open, one can insert some material between the prongs at the other end that, the spring allowed to close, then clamp the inserted material. According to their function, pins can be made of metals (e.g. steel, copper, or brass), wood, or plastic.

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  1. M

    Solving Power Problem: Do I Need Molex 4 Pin Square?

    Hi There Please Anybody Than Can Help I Am Upgrading Computer Running Into Problem Mobo Msik9n Sli V2 Cpu Amd Athlon 64x2 4600 In The Procces I Found That I Need A 12 V 4 Pin Square Power Cord Which I Dont Have From My Psu However In The Mobo Istallation Manual It Says I Must Power The...
  2. J

    Good 68 pin lcc socket with hole for mounting

    Where can i find a 68 pin lcc socket with a hole for mounting a sample. I need to be able to place the sample on a coldplate in a dewar which so that it is in contact with the plate and still contacts the pins on the socket. The attached file shows a rough ProE model of the coldplate. As you...
  3. V

    Significance of AVcc pin in ATMEGA 16

    I'm using a ATMEGA16 microcontroller. I was having problem getting it to work. I found somewhere on the internet that even if I'm not using the analog signals, I need to short the AVcc pin to the Vcc. Can anyone give any reason as to why we need to do this?
  4. A

    Pin Diagram of 8:1 Mux - Get Answers Here!

    Could anyone please provide me with a labeled pin diagram of an 8:1 Mux or list it on here? I have tried searching and haven't had much luck. Thanks for your help.
  5. L

    Pin joint Trusses and Equilibrium

    I have a general question about solving these types of problems. I had two different problems for calculating the tensions and compressions of a pin-jointed truss. both problems were of a trapezoidal shape with 5 pins in total. in one problem, a weight was applied to the center truss on...
  6. I

    Piano Tuning Pin Rotation: A Physics Problem

    Hello everyone, I am new here and so I apologize in advance for the many forum faux pas I am likely to commit. I am not particularly well educated in the field of physics, but I am a piano tuner by trade, and we work with issues every day that are basically problems of physics and engineering...
  7. RadiationX

    Pin Connection with one support reaction?

    Please click on the image to make it bigger. http://img105.imageshack.us/img105/5413/pinconnectiontw4.th.jpg At pin connnection G shouldn't there be two support reactions just like the pin connection at A? If the solution in the diagram is correct why is it correct?
  8. B

    No problem, glad I could help!

    Appreciate if someone can check my answers to the following question: A beam hinged at one end and simply supported at the other is subjected to the loading shown. A design calculation is required to determine the suitable size of hinge pin. If wrong, could you point me in the right direction...
  9. J

    Calculate the final speed of the pin

    Assume that a bowling ball, initially traveling at 12.0m/s, has 5 times the mass of a pin and that the pin goes off at 80* from the original direction of the ball. A) Calculate the final speed of the pin, B) the final speed of the ball, C) and the angle through which the ball was deflected...
  10. J

    Finding a Pin Compatible Alternative to the DAC0830

    does anyone know of another part similar to this dac? like a pin compatible one? because this one is not readily available here, (even though it states that they are in full production on the national website) "The DAC0830 is an advanced CMOS/Si-Cr 8-bit multiplying DAC designed to...
  11. M

    Calculating the Velocity of Pin P in a Rod A-Rod B System

    From B&J Chap 15 Rods A and B are attached to a wall and point to the right. A collar with pin P moves freely on Rod A. Rod A is positioned horizontally. Rod B is 500mm below Rod A and angled 30 degrees up with the wall. Pin P is attached to a slot in Rod B. Pin P moves freely in the...
  12. S

    How do Silicon PIN photodiodes convert alpha particles into electrical signals?

    i am writing a lab report into an experiment i did using a photodiode to detect alpha particles. I am curious however as to how a photodiode actually works. The alpha particles are emitted from the source, they hit the diode and then what happens? Its somehow changed into an electrical signal...
  13. D

    Inertia of a Bowling Pin: Can We Predict Its Complex Motion After Impact?

    Hi, I need to know the moment of inertia of a bowling pin. I'd like to know how to calculate it. I would prefer an approximation formula according to the mass of the pin instead of an integration method. Thank you
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