Carat (mass)

The carat (ct) is a unit of mass equal to 200 mg (0.2 g; 0.007055 oz) and is used for measuring gemstones and pearls. The current definition, sometimes known as the metric carat, was adopted in 1907 at the Fourth General Conference on Weights and Measures, and soon afterwards in many countries around the world. The carat is divisible into one hundred points of two milligrams each. Other subdivisions, and slightly different mass values, have been used in the past in different locations.

In terms of diamonds, a paragon is a flawless stone of at least 100 carats (20 g).

The ANSI X.12 EDI standard abbreviation for the carat is CD.

Etymology

First attested in English in the mid-15th century, the word carat came from Italian carato, which came from Greek kerátion (κεράτιον) meaning carob seed (literally "small horn") and potentially from Arabic qīrāṭ (قيراط). (diminutive of - keras, "horn") and was a unit of weight though it was not likely used to measure gold in classical times. The Latin word for carat is siliqua. This common belief that carat derives from carob seeds stems from the assumption that the seeds had unusually low variability in mass.

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Carat

Carat, karat, karet or karot may refer to:

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Dance music

Dance music is music composed specifically to facilitate or accompany dancing. It can be either a whole musical piece or part of a larger musical arrangement. In terms of performance, the major categories are live dance music and recorded dance music. While there exist attestations of the combination of dance and music in ancient times (for example Ancient Greek vases sometimes show dancers accompanied by musicians), the earliest Western dance music that we can still reproduce with a degree of certainty are the surviving medieval dances. In the Baroque period, the major dance styles were noble court dances (see Baroque dance). In the classical music era, the minuet was frequently used as a third movement, although in this context it would not accompany any dancing. The waltz also arose later in the classical era. Both remained part of the romantic music period, which also saw the rise of various other nationalistic dance forms like the barcarolle, mazurka and polonaise.

Modern popular dance music initially emerged from late 19th century's Western ballroom and social dance music. During the early 20th century, ballroom dancing gained popularity among the working class who attended public dance halls. Dance music became enormously popular during the 1920s. In the 1930s, called the Swing era, Swing music was the popular dance music. In the 1950s, Rock and roll became the popular dance music. The late 1960s saw the rise of soul and R&B music. The rise of disco in the early 1970s led to dance music becoming popular with the public. By the late 1970s, a new form of dance music was developing. This music, made using electronics, is a style of popular music commonly played in dance music nightclubs, radio stations, shows and raves. Many subgenres of electronic dance music have evolved.