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Webdriver Torso is a YouTube automated performance testing account that became famous in 2014 for speculations about its (then unexplained) nature and jokes featured in some of its videos. Created by Google on March 7, 2013, [ 1 ] the channel began uploading videos on September 23 of the same year, consisting of simple slides accompanied by beeps.
At the same time, Simon Stewart at ThoughtWorks developed a superior browser automation tool called WebDriver. In 2009, after a meeting between the developers at the Google Test Automation Conference, it was decided to merge the two projects, and call the new project Selenium WebDriver, or Selenium 2.0. [7]
Headless browsers or solutions based on Selenium Web Driver are normally used for this purpose. [7] [8] [9] Another variation of this type of test automation tool is for testing mobile applications. This is very useful given the number of different sizes, resolutions, and operating systems used on mobile phones.
Selenium is a component of the amino acids selenocysteine and selenomethionine. In humans, selenium is a trace element nutrient that functions as cofactor for glutathione peroxidases and certain forms of thioredoxin reductase. [1] Selenium-containing proteins are produced from inorganic selenium via the intermediacy of selenophosphate (PSeO 3 3 ...
Solid SeO 2 is a one-dimensional polymer, the chain consisting of alternating selenium and oxygen atoms. Each Se atom is pyramidal and bears a terminal oxide group. The bridging Se-O bond lengths are 179 pm and the terminal Se-O distance is 162 pm. [5] The relative stereochemistry at Se alternates along the polymer chain (syndiotactic).
Selenium dichloride is the inorganic compound with the formula SeCl 2. It forms red-brown solutions in ethers. Selenium dichloride has been prepared by treating gray selenium with sulfuryl chloride. Adducts of selenium dichloride with thioethers and thioureas are well characterized. Related complexes of tellurium dichloride are known
In 2007, F# added asynchronous workflows with version 2.0. [14] The asynchronous workflows are implemented as CE (computation expressions).They can be defined without specifying any special context (like async in C#).
Selenium monochloride or diselenium dichloride is an inorganic compound with the formula Se 2 Cl 2. Although a common name for the compound is selenium monochloride, reflecting its empirical formula , IUPAC does not recommend that name, instead preferring the more descriptive diselenium dichloride.