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1963 The United States Navy scientists began to work with 3M to develop aqueous film-forming foams (AFFF). The US military began to use AFFF since its development in 1963 and patented AFFF in 1967. [22] [23] 1961 A DuPont in-house toxicologist said C8 was toxic and should be "handled with extreme care." [10]
In the early 1970s, National Foam, Inc. invented alcohol-resistant AFFF technology. AR-AFFF is a synthetic foam developed for both hydrocarbon and polar-solvent materials. Polar solvents are combustible liquids that destroy conventional fire-fighting foam.
In November 2013, YouTube's own YouTube channel surpassed Felix Kjellberg's PewDiePie channel to become the most subscribed channel on the website. This was due to auto-suggesting new users to subscribe to the channel upon registration. [160] Users of the mobile app can reply to comments since April 2014. [149]
This is an accepted version of this page This is the latest accepted revision, reviewed on 1 January 2025. This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources. Indian record label T-Series is the most-viewed YouTube channel, with over 276 billion views. The list of most-viewed YouTube channels ...
The following is a list of YouTubers for whom Wikipedia has articles either under their own name or their YouTube channel name. This list excludes people who, despite having a YouTube presence, are primarily known for their work elsewhere.
The song became a standard and is one of best known in the vallenato repertoire. [2] 1952 "It Wasn't God Who Made Honky Tonk Angels" Kitty Wells: Hank Thompson: Hank Thompson song "The Wild Side of Life" The song says that contrary to Hank Thompson's view on women in his song "The Wild Side of Life" men are often at fault for adultery. [3] 1954
They later invented a carbon tetrachloride model called the "Petrolex" which was marketed toward automotive use. [6] The chemical foam extinguisher was invented in 1904 by Aleksandr Loran in Russia, based on his previous invention of fire fighting foam. Loran first used it to extinguish a pan of burning naphtha. [7]
The service is designed with a user interface that allows users to explore songs and music videos on YouTube-based genres, playlists, and recommendations. In April 2023, the service expanded its offerings to include support for podcasts. [2] YouTube Music also features a premium tier that provides several benefits to subscribers.