List of U.S. Cities | Britannica
This is a list of selected cities, towns, and other populated places in the United States, ordered alphabetically by state. (See also city and urban planning.)
Rock and roll | History, Songs, Artists, & Facts | Britannica
2024年9月13日 · 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.
Queen | Members, Songs, Albums, & Facts | Britannica
2024年10月1日 · Queen, British rock band whose fusion of heavy metal, glam rock, and camp theatrics made it one of the most popular groups of the 1970s. The band was known for the hit songs ‘Bohemian Rhapsody,’ ‘We Are the Champions,’ ‘We Will …
Igneous rock | Characteristics, Examples, Formation, & Types
2024年10月9日 · Igneous rock, any of various crystalline or glassy rocks formed by the cooling and solidification of magma, which is a hot (600 to 1,300 °C, or 1,100 to 2,400 °F) molten or partially molten rock. Igneous rocks constitute one of the three principal classes of rocks, the others being metamorphic and sedimentary.
Sedimentary rock | Definition, Formation, Examples,
Sedimentary rock, rock formed at or near Earth’s surface by the accumulation and lithification of sediment or by the precipitation from solution at normal surface temperatures. Sedimentary rocks are the most common rocks exposed on Earth’s surface but are …
Rock | Definition, Characteristics, Formation, Cycle, Classification ...
2024年9月11日 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. The three major classes of rock are igneous, sedimentary, and metamorphic rock.
Rock - Structure, Texture, Composition | Britannica
2024年9月11日 · Many properties are also dependent on grain or crystal size, shape, and packing arrangement, the amount and distribution of void space, the presence of natural cements in sedimentary rocks, the temperature and pressure, and the type and amount of contained fluids (e.g., water, petroleum, gases).
Rock | Definition, History, Artists, Songs, & Facts | Britannica
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. It originated in the United States and spread to other English-speaking countries and across Europe in the 1960s.
Uluru/Ayers Rock | Location, Map, & Facts | Britannica
2024年9月27日 · Uluru/Ayers Rock, giant monolith, one of the tors (isolated masses of weathered rock) in southwestern Northern Territory, central Australia. It has long been revered by a variety of Australian Aboriginal peoples of the region, who call it Uluru.
Dome of the Rock | History, Architecture, & Significance | Britannica
2024年9月21日 · The Dome of the Rock is a shrine in Jerusalem built in the late 7th century CE that is the oldest extant Islamic monument in the world, believed to be the site of Muhammad’s ascent to heaven (the Mi‘raj). Its structure and ornamentation are rooted in the Byzantine architectural tradition.