Web search engine launched on June 1, 2009. On July 29, 2009, Yahoo! and Microsoft finalized a deal in which Yahoo! Search would be powered by Microsoft Bing technology. A search engine maintains the following processes in near real time: Web search engines get their information by web crawling from site to site. The "spider" checks for the standard filename "robots.txt", addressed to it, before sending certain information back to be indexed depending on many factors, such as the titles, page content, JavaScript, Cascading Style Sheets (CSS), headings, as evidenced by the standard HTML markup of the informational content, or its metadata in
The Metaphysical Engine, or What Quill Did The Metaphysical Engine, or What Quill Did "The Metaphysical Engine, or What Quill Did" is the seventh episode of the British science fiction television series "Class". It was released online by BBC Three on 26 November 2016. The episode was written by series creator Patrick Ness and directed by Wayne Che Yip; it acts as a companion piece to the previous episode "Detained", also written by Ness and directed by Che Yip. "Class" follows four students of Coal Hill Academy and their alien teacher, as they deal with various alien threats. The episode takes place concurrently with "Detained", following Miss