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Fidelity is the quality of faithfulness or loyalty. Its original meaning regarded duty in a broader sense than the related concept of ''fealty''. Both derive from the Latin word ''fidēlis'', meaning "faithful or loyal". In the City of London financial markets it has traditionally been used in the sense encompassed in the motto "My word is my bond". Audio and electronics In audio, "fidelity" denotes how accurately a copy reproduces its source. In the 1950s, the terms "high fidelity" or "hi-fi" were popularized for equipment and recordings which exhibited more accurate sound reproduction. For example, a worn gramophone record will have a lower fidelity than one in good condition, and a recording made by a low budget record company in the early 20th century is likely to have significantly less audio fidelity than a good modern recording. Similarly in electronics, fidelity refers to the correspondence of the output signal to the input signal, rather than sound quality, as in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4243 - Venezia - Palazzo Ducale - Capitello 28 - In Fidelitate Nullli Gero - Foto Giovanni Dall'Orto, 30-Jul-2008
4 (four) is a number, numeral (linguistics), numeral and numerical digit, digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is tetraphobia, considered unlucky in many East Asian cultures. In mathematics Four is the smallest composite number, its proper divisors being and . Four is the sum and product of two with itself: 2 + 2 = 4 = 2 x 2, the only number b such that a + a = b = a x a, which also makes four the smallest squared prime number p^. In Knuth's up-arrow notation, , and so forth, for any number of up arrows. By consequence, four is the only square one more than a prime number, specifically 3, three. The sum of the first four prime numbers 2, two + 3, three + 5, five + 7, seven is the only sum of four consecutive prime numbers that yields an Parity (mathematics), odd prime number, 17 (number), seventeen, which is the fourth super-prime. Four lies between the first proper pair of twin primes, 3, three and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Music
Rock music is a broad genre of popular music that originated as " rock and roll" in the United States in the late 1940s and early 1950s, developing into a range of different styles in the mid-1960s and later, particularly in the United States and United Kingdom.W. E. Studwell and D. F. Lonergan, ''The Classic Rock and Roll Reader: Rock Music from its Beginnings to the mid-1970s'' (Abingdon: Routledge, 1999), p.xi It has its roots in 1940s and 1950s rock and roll, a style that drew directly from the blues and rhythm and blues genres of African-American music and from country music. Rock also drew strongly from a number of other genres such as electric blues and folk, and incorporated influences from jazz, classical, and other musical styles. For instrumentation, rock has centered on the electric guitar, usually as part of a rock group with electric bass guitar, drums, and one or more singers. Usually, rock is song-based music with a time signature using a verse–chorus form, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rankism
Rankism is "abusive, discriminatory, and/or exploitative behavior towards people because of their rank in a particular hierarchy". Rank-based abuse underlies many other phenomena such as bullying, racism, hazing, ageism, sexism, ableism, mentalism, anti-semitism, homophobia and transphobia. The term "rankism" was popularized by physicist, educator, and citizen diplomat Robert W. Fuller. Characteristics Rankism can take many forms, including * exploiting one's position within a hierarchy to secure unwarranted advantages and benefits (e.g. massive corporate bonuses); * abusing a position of power (e.g., abusive parent or priest, corrupt CEO, bully boss, prisoner abuse); * using rank as a shield to get away with insulting or humiliating others with impunity; * using rank to maintain a position of power long after it can be justified; * exporting the rank achieved in one sphere of activity to claim superior value as a person; * exploiting rank that is illegitimately acquired or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
