Rock, in geology, naturally occurring and coherent aggregate of one or more minerals Listen to the best rock music channels online with accuradio Such aggregates constitute the basic unit of which the solid earth is composed and typically form recognizable and mappable volumes
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The three major classes of rock are igneous, sedimentary, and metamorphic rock.
Rock history can thus be organized around both the sound of cities (philadelphia and detroit, new york city and san francisco, liverpool and manchester) and the spread of youth cults (rock and roll, heavy metal, punk, and grunge).
Rock hudson, american actor noted for his good looks and movie roles during the 1950s and ’60s, including magnificent obsession, giant, and pillow talk, and for the tv series macmillan and wife in the 1970s Rock music is a form of popular music that emerged in the 1950s and can be defined as “a form of music with a strong beat”—it is difficult to be much more precise It is also called rock and roll. In britain, as in the rest of europe, rock and roll had an immediate youth appeal—each country soon had its own elvis presley—but it made little impact on national music media, as broadcasting was still largely under state control.
The music industry was rescued from its economic crisis by the development in the 1980s of a new technology, digital recording Vinyl records were replaced by the compact disc (cd), a technological revolution that immediately had a conservative effect. Rock remains the most democratic of mass media—the only one in which voices from the margins of society can still be heard out loud Yet, at the beginning of the 21st century, rock and the music industry faced a new crisis.
The electrical nature of a material is characterized by its conductivity (or, inversely, its resistivity) and its dielectric constant, and coefficients that indicate the rates of change of these with temperature, frequency at which measurement is made, and so on.
50 best rock bands of all time, according to the billboard editorial staff. Rock, pop, and folk music performances and features from npr news, npr cultural programs, and npr music stations. Rock suggests a swinging or swaying motion resulting from violent impact or upheaval. Rock music originated from the american rock and roll sound of the late '40s and early '50s
Rock has roots in black rhythm and blues Iconic black artists like chuck berry, fats domino, sister rosetta tharpe, and little richard are among some of the founders of rock music. If someone is your rock, you feel that you can depend on them and that they will always support you He's always been my rock, said his lifelong friend and teammate.
