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Selenium RC served as the flagship testing framework of the entire project of selenium for a long-standing time. And significantly [editorializing] Selenium RC is the first and foremost automated web testing tool that enabled users to adopt their preferred programming language. [15] [16]
Selenium rectifier. Once common until replaced by more compact and less costly silicon solid-state rectifiers in the 1970s, these units used stacks of oxide-coated metal plates and took advantage of the semiconductor properties of selenium or copper oxide. [22]
Pages in category "Selenium" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes. ...
An 8-plate 160 V 450 mA Federal brand selenium rectifier. A selenium rectifier is a type of metal rectifier, invented in 1933. [1] They were used in power supplies for electronic equipment and in high-current battery-charger applications until they were superseded by silicon diode rectifiers in the late 1960s.
Selenium runs on Windows, Linux, and macOS. It is open-source software released under the Apache License 2.0.","extract_html":" Selenium is an open source umbrella project for a range of tools and libraries aimed at supporting browser automation. It provides a playback tool for authoring functional tests across most modern web browsers, without ...
This is alluded to in the description of Selenium RC and WebDriver below, but probably clearer when explicated in the history. Also added three external references which should help with the primary sources issue. I moved the sentence about Selenium being open source to the intro - this is not really part of the history IMHO.
Selenium is found in metal sulfide ores, where it substitutes for sulfur. Commercially, selenium is produced as a byproduct in the refining of these ores. Minerals that are pure selenide or selenate compounds are rare. The chief commercial uses for selenium today are glassmaking and pigments. Selenium is a semiconductor and is used in photocells.
They slowly lost market share beginning in the late 1940s due to selenium rectifier technology and then to semiconductor diodes during the 1960s. Today they are still used in a few high power applications where their ability to withstand transient voltages and their robustness gives them an advantage over semiconductor devices, and in musical ...