A collection of push-pins in a cork board
File:Standard pin.jpg
A standard pin

A pin is a device used for fastening objects or material together. It is usually made of steel, or on occasion copper or brass. It is formed by drawing out a thin wire, sharpening the tip, and adding a head. Nails are related, but are typically larger. In machines and engineering, pins are commonly used as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts.

Contents

History [link]

Curved pins have been used for over four thousand years. Originally, they were fashioned out of iron and bone by the Sumerians and were used to hold clothes together. Later, these pins were also used to hold pages together by threading the needle through their top corner.[1]

Many late pins were made of brass, a hard metal. Steel was used later, as it was much stronger, but there was no easy process to keep steel from rusting, so higher quality pins were plated with nickel, but the metal would start to break down and flake off in high humidity, allowing rust to form. Steel pins were not that inconvenient for homemaking uses as they were usually only used temporarily while sewing garments.[2]

Other types [link]

The push pin, with a large plastic head, was invented in 1903 by Edwin Moore and quickly became a success. These pins are also called "thumbtacks". There is also a new push pin called a "paper cricket".

Walter Hunt invented the safety pin by forming an eight-inch brass pin into a bent pin with a spring and guard. He sold the rights to his invention to pay a debt to a friend,[3] not knowing that he could have made millions of dollars.


In engineering and machine design, a pin is a machine element that secures the position of two or more parts of a machine relative to each other. A large variety of types has been known for a long time, the most commonly used are solid cylindrical pins, solid tapered pins, groove pins, slotted spring pins and spirally coiled spring pins.

See also [link]

Notes [link]

  1. ^ Petroski, Henry, "From Pins to Paper Clips", The Evolution of Useful Things, Knopf, New York, 1993, p. 53
  2. ^ Bridgman, Roger. 1000 Inventions & Discoveries. New York: Dorling Kindersley Publishing [1], 2002, p.126
  3. ^ Alfred, R (2008-10-04). "April 10, 1849: Safety Tech Gets to the Point, Baby". Wired. https://www.wired.com/science/discoveries/news/2008/04/dayintech_0410#. Retrieved 2008-10-23. 

References [link]


https://wn.com/Pin

Łępin

Łępin [ˈwɛmpin] is a village in the administrative district of Gmina Stara Błotnica, within Białobrzegi County, Masovian Voivodeship, in east-central Poland. It lies approximately 15 kilometres (9 mi) south of Białobrzegi and 78 km (48 mi) south of Warsaw.

The village has a population of 148.

References


Coordinates: 51°30′58″N 20°58′1″E / 51.51611°N 20.96694°E / 51.51611; 20.96694


Pin (computer program)

Pin is a platform for creating analysis tools. A pin tool comprises instrumentation, analysis and callback routines. Instrumentation routines are called when code that has not yet been recompiled is about to be run, and enable the insertion of analysis routines. Analysis routines are called when the code associated with them is run. Callback routines are only called when specific conditions are met, or when a certain event has occurred. Pin provides an extensive application programming interface (API) for instrumentation at different abstraction levels, from one instruction to an entire binary module. It also supports callbacks for many events such as library loads, system calls, signals/exceptions and thread creation events.

Pin performs instrumentation by taking control of the program just after it loads into the memory. Then just-in-time recompiles (JIT) small sections of the binary code using pin just before it is ran. New instructions to perform analysis are added to the recompiled code. These new instructions come from the Pintool. A large array of optimization techniques are used to obtain the lowest possible running time and memory use overhead. As of June 2010, Pin's average base overhead is 30 percent (without running a pintool).

Nie (surname)

Nie (simplified Chinese: ; traditional Chinese: ; pinyin: Niè) is a Chinese surname. Nie is the 126th surname in the Hundred Family Surnames. It is spelled Nip in Cantonese.

Notable people named Nie

  • Nie Er, Chinese composer in the 20th century
  • Nie Haisheng, a Chinese astronaut
  • Nie Rongzhen, marshal of People's Liberation Army
  • Nie Shicheng, general in Qing Dynasty
  • Nie Weiping, professional weiqi player
  • Nie Yuan, actor
  • Nie Yuanzi, key figure in the Cultural Revolution
  • Nie Dan(Daniel Nie), a recipient of 2000 Sam Ragan Awards, a leading Chinese-American artist.
  • Notes

    NIE (weekly magazine)

    NIE (Polish for "No") is a Polish weekly magazine published in Warsaw.

    History and profile

    The magazine was first published in October 1990.Jerzy Urban is both the founder and editor-in-chief of the magazine.

    Its political line is left. The magazine is very critical of right wing political vies and religion, especially Catholicism. In the 1990s it supported the leader of the Democratic Left Alliance, Aleksander Kwasniewski. It publishes lot of satirical texts with cartoons and pictures.

    NIE has a circulation of 600,000 copies in 1991. In 1995 its circulation was over 700,000 copies.

    In 1990 when Solidarity and the church were planning to push a strict new anti-abortion law through parliament, the magazine published a quarter-page, full-color photograph of a nude couple about to make love to warn its readers that "they risked going to jail or being forced into unwanted marriages if they did what the couple in the picture was about to do." The church leaders and President Lech Walesa harshly criticized it and in March 1991 the prosecutor's office charged Urban with "publishing an image of pornographic character."

    NieA 7

    NieA_7 (ニアアンダーセブン Nia Andā Sebun), also known as NieA under 7, is a 13-episode anime series about Mayuko, a poor, introverted student who lives above a Japanese bathhouse, and NieA, a freeloading, freewheeling alien who lives in her closet and eats her food.

    The series touches lightly upon issues of discrimination, stereotypes, alienation, city life vs small town life, and assimilation. Mayuko, who attends a cram school, is a young girl living away from her family and expresses a lot of melancholy. NieA, who is apparently placed in an inferior class by her fellow aliens due to being a physical minority among them, immediately accuses anyone who calls her a "stupid no-antenna" or the like, of discrimination. Other aliens adopt various stereotypical cultural styles, one chooses Indian dress and opens a convenience store, another chooses to associate herself with the Chinese Revolution. This theme of the outsider alien is carried through in the brief comic live-action sequence which ends each episode, "Dalgit's Tidbit of Indian Information."

    Podcasts:

    PLAYLIST TIME:
    • by David Bowie

    D J

    by: David Bowie

    ====
    (David Bowie/Brian Eno/Carlos Alomar)
    I'm home, lost my job, and incurably ill
    You think this is easy, realism
    I've got a girl out there, I suppose
    I think she's dancing
    Feel like Dan Dare lies down
    I think she's dancing, what do I know?
    I am a D.J., I am what I play
    Can't turn around no, can't turn around, no, oh, ooh
    I am a D.J., I am what I play
    Can't turn around no, can't turn around, no, oh no
    I am a D.J., I am what I play
    I got believers (kiss-kiss)
    Believing me, oh
    One more, weekend, of lights and evening faces
    Fast food, living nostalgia
    Humble pie or bitter fruit
    I am a D.J., I am what I play
    Can't turn around no, can't turn around no, ooh
    I am a D.J., I am what I say
    Can't turn around no, can't turn around, ooh
    I am a D.J., I am what I play
    I've got believers (kiss-kiss)
    Believing me
    I am a D.J., I am what I play
    Can turn around no, can't turn around
    I am a D.J., I am what I play
    Can turn around no, can't turn around
    I am a D.J., I am what I play
    Can turn around no (kiss-kiss)
    Time flies when you're having fun
    Break his heart, break her heart
    He used to be my boss and millions of puppet dancer
    I am a D.J., and I've got believers
    I've got believers
    I've got believers
    I've got believers in me
    I've got believers
    I am a D.J., I am what I play




    ×