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In the 1950s, American radio DJs appeared live at sock hops and "platter parties" and assumed the role of a human jukebox. They typically played 45-rpm records, featuring hit singles on one turntable while talking between songs. In some cases, a live drummer was hired to play beats between songs to maintain the dance floor.
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]
A similar feature called "YouTube Radio" for continuous music playback in resemblance to radio stations was tested in February 2015. [149] Since approximately July 9, 2013, the first page of videos' comment section is no longer included in the watch page's static HTML source code, but instead loaded subsequently through AJAX. [150]
In February 2023, YouTube Music launched Radio Builder, a free and from anywhere accessible web service for both paying subscribers and free users with iOS or Android devices. It allows users to create a custom radio station, selecting up to 30 artists with an option to hear only their songs or from comparable musicians. [20] [21] [22]
List of songs in Guitar Hero World Tour; List of songs in Guitar Hero 5; List of songs in Guitar Hero: Warriors of Rock; List of songs in Guitar Hero Live; List of songs in Guitar Hero: Aerosmith; List of songs in Guitar Hero: Metallica; List of songs in Guitar Hero: Van Halen; List of songs in Guitar Hero Encore: Rocks the 80s
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.
The Top 40, whether surveyed by a radio station or a publication, was a list of songs that shared only the common characteristic of being newly released. Its introduction coincided with a transition from the old ten-inch 78 rpm record format for single "pop" recordings to the seven-inch vinyl 45 rpm format, introduced in 1949, which was ...
The Radio Songs chart (previously named Hot 100 Airplay until 2014 [1] and Top 40 Radio Monitor until 1991) [2] is released weekly by Billboard magazine and measures the airplay of songs being played on radio stations throughout the United States across all musical genres.