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A Fresnel lens ( / ˈfreɪnɛl, - nəl / FRAY-nel, -nəl; / ˈfrɛnɛl, - əl / FREN-el, -əl; or / freɪˈnɛl / fray-NEL[ 1]) is a type of composite compact lens which reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections.
The YouTube Kids app features parental control settings that allow parents to limit screen time, and restrict users from accessing the search tool. Parents can use a passcode or their Google account to protect these settings, and configure profiles for multiple users to tailor their experiences.
Elsagate. Elsagate thumbnails featured familiar children's characters doing inappropriate or disturbing things, shown directly or suggested. Examples included injections, mutilation, childbirth, urination, fellatio, and chemical burning. Elsagate ( portmanteau of Elsa and the -gate scandal suffix) is a controversy surrounding videos on YouTube ...
YouTube Rewind 2018 is the single most disliked video on YouTube, receiving over 20 million dislikes since its upload on December 6, 2018. [1] This list of most-disliked YouTube videos contains the top 42 videos with the most dislikes of all time, as derived from the American video platform, YouTube's, charts. [2]
YouTube and privacy. Since its founding in 2005, the American video-sharing website YouTube has been faced with a growing number of privacy issues, including allegations that it allows users to upload unauthorized copyrighted material and allows personal information from young children to be collected without their parents' consent.
The original video by Pinkfong is now the most viewed video on the site. On October 29, 2020, Baby Shark surpassed 7 billion views, and on November 2, 2020, it passed Despacito to become the most viewed video on YouTube. On February 23, 2021, Baby Shark surpassed 8 billion views, becoming the first video to do so.
Susan Wojcicki. Susan Diane Wojcicki ( / wʊˈtʃɪtski / wuutch-ITS-kee; [ 1] July 5, 1968 – August 9, 2024) was an American business executive who was the chief executive officer of YouTube from 2014 to 2023. Her net worth was estimated at $765 million in 2022.
An Osprey crash in Australia that killed three Marines last August was caused by multiple pilot errors during a near mid-air collision, a military investigation has found. Two Marines were killed ...