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Rock hill sc jail mugshots It originated in the United States and spread to other English-speaking countries and across Europe in the 1960s. The Beatles’ success suggested that it was possible to enjoy the commercial, mass-cultural power of rock and roll while remaining an artist. Nov 25, 2025 · Rock - Electrical Properties: 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. Rock is a form of popular music that emerged in the 1950s and that by the end of the 20th century was the world’s dominant form of popular music. Folk musicians, led by Bob Dylan, went electric, amplified their instruments, and sharpened their beat. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. 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. It is also called rock and roll. Nov 21, 2025 · Rock and roll, style of popular music that originated in the United States in the mid-1950s and that evolved by the mid-1960s into the more encompassing international style known as rock music, though the latter also continued to be known as rock and roll. Nov 25, 2025 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. The three major classes of rock are igneous, sedimentary, and metamorphic rock. Whatever now happens to the music industry, it is certain that rock will remain the soundscape for most people’s lives. Nov 13, 2025 · 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 is a form of popular music that emerged in the 1950s and that by the end of the 20th century was the world’s dominant form of popular music. The immediate consequence was folk rock. He was one of the first known Hollywood celebrities to die of AIDS-related complications. Yet, at the beginning of the 21st century, rock and the music industry faced a new crisis. Fifty years after rock’s birth as an alternative to mainstream pop, mainstream pop had become 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 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.