Cyanide

A cyanide is any chemical compound that contains monovalent combining group CN. This group, known as the cyano group, consists of a carbon atom triple-bonded to a nitrogen atom.

In inorganic cyanides, such as sodium cyanide and potassium cyanide this group is present as the negatively charged polyatomic cyanide ion (CN⁻); these compounds, which are regarded as salts of hydrocyanic acid, are highly toxic. The cyanide ion is isoelectronic with carbon monoxide and with molecular nitrogen.

Organic cyanides are usually called nitriles; in these, the CN group is linked by a covalent bond to a carbon-containing group, such as methyl (CH₃) in methyl cyanide (acetonitrile). Because they do not release cyanide ions, nitriles are generally less toxic, or in the case of insoluble polymers such as acrylic fiber, essentially nontoxic unless burned.

Hydrocyanic acid, also known as hydrogen cyanide, or HCN, is a highly volatile liquid used to prepare acrylonitrile, which is used in the production of acrylic fibers, synthetic rubber, and plastics. Cyanides are employed in a number of chemical processes, including fumigation, case hardening of iron and steel, electroplating, and the concentration of ores. In nature, substances yielding cyanide are present in certain seeds, such as the pit of the cherry and the seeds of apples.

Cyanide (company)

Cyanide is a French video game development studio and publisher that was created by seven ex-UbiSoft employees and is based in the western suburbs of Paris, France, with offices in Montreal, Canada and Chengdu, China.

They have developed games in numerous genres, including sports management, real time strategy, fantasy, and action RPG.

Games

References

External links

Cyanide (film)

Cyanide (Kannada: ಸೈನೈಡ್), Kuppi (Tamil) is a 2006 Indian bilingual drama film written and directed by A. M. R. Ramesh. The plot of the film set in and around Bangalore from 1 August to 20 August 1991, deals with incidents surrounding the assassins of former Indian Prime Minister Rajiv Gandhi. It stars Ravi Kale as Sivarasan (One-eyed Jack), the mastermind of the assassination. Malavika Avinash, Tara, Rangayana Raghu in pivotal roles. The supporting cast features Avinash, Nasser and Suresh Heblikar.

Upon theatrical release on 7 July 2006, the film received widespread critical acclaim. Critics acclaimed the film's narration, the acting performances of Ravi Kale, Rangayana Raghu, Tara and Malavika Avinash, and the camerawork and editing of the film. At the 2006–07 Karnataka State Film Awards the film won two awards — Third Best Film and Best Actress (Tara). For his portrayal of Ranganath, who sheltered the assassins, Raghu was awarded the Best Supporting Actor at the 54th Filmfare Awards South. The film is seen by some critics as one of the finest films ever made in Kannada cinema.

Kraken

The Kraken (/ˈkreɪkən/ or /ˈkrɑːkən/) is a legendary sea monster of giant size that is said to dwell off the coasts of Norway and Greenland. A number of authors over the years have postulated that the legend originated from sightings of giant squids that may grow to 12-15 meters (40-50 feet) in length, despite the fact that the creature in the original tales was not described as having tentacles and more closely resembled a whale or crab. The sheer size and fearsome appearance attributed to the kraken have made it a common ocean-dwelling monster in various fictional works.

Etymology

The English word kraken is taken from Norwegian. In Norwegian and Swedish, Kraken is the definite form of krake, a word designating an unhealthy animal or something twisted (cognate with the English crook and crank). In modern German, Krake (plural and declined singular: Kraken) means octopus, but can also refer to the legendary kraken.

History

In the late-13th-century version of the Old Icelandic saga Örvar-Oddr is an inserted episode of a journey bound for Helluland (Baffin Island) which takes the protagonists through the Greenland Sea, and here they spot two massive sea-monsters called Hafgufa ("sea mist") and Lyngbakr ("heather-back"). The hafgufa is believed to be a reference to the kraken:

Browser speed test

A browser speed test is a computer benchmark that scores the performance of a web browser, by measuring the browser's efficiency in completing a predefined list of tasks. In general the testing software is available online, located on a website, where different algorithms are loaded and performed in the browser client. Typical test tasks are rendering and animation, DOM transformations, string operations, mathematical calculations, sorting algorithms, graphic performance tests and memory instructions. Browser speed tests have been used during browser wars to prove superiority of specific web browsers. The popular Acid3 test is no particular speed test but checks browser conformity to web standards (though it checks whether a general performance goal is met or not).

General tests

Peacekeeper

Online speed test by Futuremark, mainly using rendering, mathematical and memory operations. Takes approx. 5 minutes for execution and tells results of other browsers with different CPUs. Does not respect operating system.

Kraken (supercomputer)

Kraken was a Cray XT5 supercomputer that entered into full production mode on February 2, 2009. Kraken was operated by the University of Tennessee and was the most powerful computer in the world managed by academia at the time. It was housed in the Oak Ridge Leadership Computing facility at Oak Ridge National Laboratory. Kraken was decommissioned on April 30, 2014.

History

Kraken's history began in 1991 with the establishment of the Joint Institute for Computational Sciences (JICS), a joint venture between the University of Tennessee and Oak Ridge National Laboratory. The JICS facility, the UT campus building in which JICS is housed, is one of the only state-owned buildings ever built on the campus of a national laboratory. The main goals of JICS are to create new ways to simulate and model data using supercomputers and to train future engineers and scientists on the use of these techniques.

The next major event in the establishment of Kraken occurred in the Spring of 2008 when the National Science Foundation awarded the University of Tennessee a $65 million grant to build and operate a supercomputer in order to aid public research in academia; the grant provided $30 million for the hardware and $35 million for the operation of the system. The supercomputer was housed at Oak Ridge Leadership Computing Facility and managed by the University of Tennessee's National Institute for Computational Sciences (NICS).