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Punk rock (simply Punk) is a rock music genre that developed between 1974 and 1976 in the United States, United Kingdom, and Australia. Rooted in garage rock and other forms of what is now known as protopunk music, punk rock bands eschewed perceived excesses of mainstream 1970s rock. Punk bands created fast, hard-edged music, typically with short songs, stripped-down instrumentation, and often political, anti-establishment lyrics. Punk embraces a DIY ethic; many bands self-produced recordings and distributed them through informal channels.
The term "punk" was first used in relation to roc...
Pop music (a term that originally derives from an abbreviation of "popular") is a genre of popular music which originated in its modern form in the 1950s, deriving from rock and roll. The terms "popular music" and "pop music" are often used interchangeably, even though the former is a description of music which is popular (and can include any style).
As a genre, pop music is very eclectic, often borrowing elements from other styles including urban, dance, rock, Latin and country; nonetheless, there are core elements which define pop. Such include generally short-to-medium length songs, ...
Classic rock is a radio format which developed from the album-oriented rock (AOR) format in the early 1980s. In the United States, the classic rock format features music ranging generally from the late 1960s to the late 1980s, primarily focusing on commercially-successful hard rock, blues rock, and arena rock popularized in the 1970s. Although the format appeals mainly to adults, many classic rock acts consistently attract new generations of fans. Some classic rock stations also play a limited number of current releases which are stylistically consistent with the station's sound, or from e...
Music is an art form whose medium is sound and silence. Its common elements are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics, and the sonic qualities of timbre and texture. The word derives from Greek (mousike; "art of the Muses").
The creation, performance, significance, and even the definition of music vary according to culture and social context. Music ranges from strictly organized compositions (and their recreation in performance), through improvisational music to aleatoric forms. Music can be divided into...
The Moderate Party (: "the Moderate Coalition Party", commonly referred to in Swedish as Moderaterna: "the Moderates") is a centre-right, liberal conservative political party in Sweden.
The party was founded in 1904 as the General Electoral League by a group of conservatives in the Swedish parliament. The party has had two other names during its history: the National Organization of the Right (1938–1952) and the Rightist Party (1952–1969).
Following the 2010 general election, where the party gained 30.06% of the vote, the party is the major component of the governing centre-right coalit...
This is a list of time zone abbreviations.
{| class="wikitable sortable"
! Abbr. !!style="text-align:left;"| Name !! UTC offset
|-
| ACDT || Australian Central Daylight Time || UTC+10:30
|-
| ACST || Australian Central Standard Time || UTC+09:30
|-
| ACT || ASEAN Common Time || UTC+08
|-
| ADT || Atlantic Daylight Time || UTC−03
|-
| AEDT || Australian Eastern Daylight Time || UTC+11
|-
| AEST || Australian Eastern Standard Time || UTC+10
|-
| AFT || Afghanistan Time || UTC+04:30
|-
| AKDT || Alaska Daylight Time || UTC−08
|-
| AKST || Alaska Standard Time || UTC−09
|-
| AMST ...
Sidereal time is a time-keeping system astronomers use to keep track of the direction to point their telescopes to view a given star in the night sky. Briefly, sidereal time is a "time scale that is based on the Earth's rate of rotation measured relative to the fixed stars."
From a given observation point, a star found at one location in the sky will be found at nearly the same location on another night at the same sidereal time. This is similar to how the time kept by a sundial can be used to find the location of the Sun. Just as the Sun and Moon appear to rise in the east and set in th...
Einstein's general theory of relativity predicts that non-static, stationary mass–energy distributions affect spacetime in a peculiar way giving rise to a phenomenon usually known as frame-dragging. The first frame-dragging effect was derived in 1918, in the framework of general relativity, by the Austrian physicists Josef Lense and Hans Thirring, and is also known as the Lense–Thirring effect. They predicted that the rotation of a massive object would distort the spacetime metric, making the orbit of a nearby test particle precess. This does not happen in Newtonian mechanics for which the...
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