Pipe dope

Pipe dope is any thread lubricant, thread sealing compound, and anaerobic chemical sealants that are used to make a pipe thread joint leak proof and pressure tight. Although common pipe threads are tapered and therefore will achieve an interference fit during proper assembly, machining and finishing variances usually result in a fit that does not result in 100 percent contact between the mating components. The application of pipe dope prior to assembly will fill the minute voids between the threads, thus making the joint pressure tight. Pipe dope also acts as a lubricant and helps prevent seizing of the mating parts, which can later cause difficulty during disassembly.

Composition

A material safety data sheet sheet reports that the "Permatex" 51D pipe joint compound to contain kaolin, clay, vegetable oil, rosin, ethanol, etc. The ingredients are designed to:

Pipe

Pipe may refer to:

Music

Anonymous pipe

In computer science, an anonymous pipe is a simplex FIFO communication channel that may be used for one-way interprocess communication (IPC). An implementation is often integrated into the operating system's file IO subsystem. Typically a parent program opens anonymous pipes, and creates a new process that inherits the other ends of the pipes, or creates several new processes and arranges them in a pipeline.

Full-duplex (two-way) communication normally requires two anonymous pipes.

Pipelines are supported in most popular operating systems, from Unix and DOS onwards, and are created using the "|" character.

Unix

Pipelines are an important part of many traditional Unix applications and support for them is well integrated into most Unix-like operating systems. Pipes are created using the pipe system call, which creates a new pipe and returns a pair of file descriptors referring to the read and write ends of the pipe. Many traditional Unix programs are designed as filters to work with pipes.

Pipeline (Unix)

In Unix-like computer operating systems (and, to some extent, Microsoft Windows), a pipeline is a set of processes chained by their standard streams, so that the output of each process (stdout) feeds directly as input (stdin) to the next one. Filter programs are often used in this configuration.

The concept of pipelines was invented by Douglas McIlroy at Unix's ancestral home of Bell Labs, prior to the actual invention of the operating system, and implemented in Unix at his insistence, shaping its toolbox philosophy. It is named by analogy to a physical pipeline. The standard shell syntax for pipelines is to list multiple programs to invoke in one command, separated by vertical bars:

Each program is assumed to take input and give output on its standard streams. Each "|" tells the shell to connect the standard output of the left program to the standard input of the right program by an inter-process communication mechanism called an (anonymous) pipe, implemented in the operating system. Since pipes are unidirectional, data flows through the pipeline from left to right.

Dope

Dope may refer to:

Chemistry

Music

TV and Film

Dope (1924 film)

Dope is a 1924 Australian silent film about a respected citizen who is blackmailed by someone from his past. It is considered a lost film.

Synopsis

Hugh Murnin, a pillar of Sydney society, has a secret past as a pearler on Thursday Island, during which time he believes he killed a man in a drunken brawl. He is blackmailed by one of his old drinking mates, Slick Harvey, who also tries to seduce Murnin's daughter, Mildred (Lorraine Esmond). Mildred's finance, Tom (Gordon Collingridge) exposes Harvey as the leader of a gang of opium smugglers and that it was he, not Murnin, who killed the man on Thursday Island. Mildred and Tom get married.

Cast

Production

The script was written by Sydney journalist and author Con Drew, and was originally titled The Trail of the Twang.

Shooting took place in April 1923 but it was not released until the following year.

Dope (Lady Gaga song)

"Dope" is a song recorded by American singer Lady Gaga for her third studio album, Artpop (2013). It was released on November 4, 2013, by Interscope Records as the second promotional single from the record, following "Venus". It was written by Gaga, Paul "DJ White Shadow" Blair, Dino Zisis, and Nick Monson and produced by Gaga and Rick Rubin. Following her hip surgery and cancellation of the Born This Way Ball tour, Gaga became addicted to drugs, which helped her get relief from the pain of surgery and also to cope with her sabbatical. "Dope" was written about this addiction and evolved from a song she had previously composed for her fans, about her confessions. It was added to Artpop because Gaga felt the album needed something more autobiographical.

The song received positive reviews, with critics complimenting its simple production, the songwriting and Gaga's vocals. An electronic rock lament, in the vein of Irish folk ballad rue, "Dope" is a bittersweet song centered on a dark theme. It has a minimal production and is only composed off Gaga's vocals sung in an intoxicated slur. Lyrically it talks about substance abuse and the yearning for a long lost love. Previous to the release Gaga uploaded an image of herself on Instagram, wearing a snapback featuring the word DOPE. She also posted the song's lyrics there, triggering the social media website's concern. The artwork featured Gaga with a big blazer, her face covered with a hat and a grill that made her teeth appear larger. Media outlets found the picture to be "odd" and compared it to different horror films.