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Noise control is an active or passive means of reducing sound emissions, often for personal comfort, environmental considerations, or legal compliance. Active noise control is sound reduction using a power source. Passive noise control is sound reduction by noise-isolating materials such as insulation, sound-absorbing tiles, or a muffler rather ...
Wireless headphones. Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open ...
William Ray Norwood Jr. (born January 17, 1981), [1] known professionally as Ray J, is an American R&B singer, songwriter, television personality, and actor. Born in McComb, Mississippi, and raised in Carson, California, he is the younger brother of singer and actress Brandy Norwood. [3] In January 2017, he competed in the nineteenth season of ...
A U.S. soldier was detained in Russia last week, a U.S. Army spokesperson said in a statement.. The soldier, Staff Sgt. Gordon Black, had been stationed in South Korea and traveled to Russia on ...
Emmylou Harris. Emmylou Harris (born April 2, 1947) [1] is an American singer, songwriter, musician, bandleader, and activist. A highly regarded figure in contemporary music, she is known for having a consistent artistic direction. Harris is considered one of the leading music artists behind the country rock genre in the 1970s and the Americana ...
Roald Dahl [a] (13 September 1916 – 23 November 1990) was a British author of popular children's literature and short stories, a poet, screenwriter and a wartime fighter ace. [1] [2] His books have sold more than 300 million copies worldwide. [3] [4] He has been called "one of the greatest storytellers for children of the 20th century".
The Voynich manuscript is an illustrated codex, hand-written in an unknown script referred to as 'Voynichese.'. [18] The vellum on which it is written has been carbon-dated to the early 15th century (1404–1438). Stylistic analysis has indicated the manuscript may have been composed in Italy during the Italian Renaissance.
Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...
Andy Warhol ( / ˈwɔːrhɒl /; [1] born Andrew Warhola Jr.; August 6, 1928 – February 22, 1987) was an American visual artist, film director and producer. A leading figure in the pop art movement, Warhol is considered one of the most important American artists of the second half of the 20th century. [2] [3] [4] His works explore the ...
During the Cold War, the Iron Curtain was a political metaphor used to describe the political and later physical boundary dividing Europe into two separate areas from the end of World War II in 1945 until the end of the Cold War in 1991.