- published: 20 Jul 2012
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1 (one; /ˈwʌn/ or UK /ˈwɒn/) is a number, a numeral, and the name of the glyph representing that number. It represents a single entity, the unit of counting or measurement. For example, a line segment of "unit length" is a line segment of length 1.
One, sometimes referred to as unity, is the integer before two and after zero. One is the first non-zero number in the natural numbers as well as the first odd number in the natural numbers.
Any number multiplied by one is the number, as one is the identity for multiplication. As a result, one is its own factorial, its own square, its own cube, and so on. One is also the empty product, as any number multiplied by one is itself, which produces the same result as multiplying by no numbers at all.
The glyph used today in the Western world to represent the number 1, a vertical line, often with a serif at the top and sometimes a short horizontal line at the bottom, traces its roots back to the Indians, who wrote 1 as a horizontal line, much like the Chinese character 一. The Gupta wrote it as a curved line, and the Nagari sometimes added a small circle on the left (rotated a quarter turn to the right, this 9-look-alike became the present day numeral 1 in the Gujarati and Punjabi scripts). The Nepali also rotated it to the right but kept the circle small. This eventually became the top serif in the modern numeral, but the occasional short horizontal line at the bottom probably originates from similarity with the Roman numeral Failed to parse (Missing texvc executable; please see math/README to configure.): \mathrm{I} . In some European countries (e.g., Germany), the little serif at the top is sometimes extended into a long upstroke, sometimes as long as the vertical line, which can lead to confusion with the glyph for seven in other countries. Where the 1 is written with a long upstroke, the number 7 has a horizontal stroke through the vertical line.
Daniel Barenboim, KBE (born 15 November 1942) is an Argentine-born pianist and conductor. He has served as music director of several major symphonic and operatic orchestras and made numerous recordings.
Currently, he is general music director of La Scala in Milan, the Berlin State Opera, and the Staatskapelle Berlin; he previously served as Music Director of the Chicago Symphony Orchestra and the Orchestre de Paris. Barenboim is also known for his work with the West-Eastern Divan Orchestra, a Sevilla-based orchestra of young Arab and Israeli musicians, and as an outspoken critic of the Israeli occupation of Palestinian territories.
Barenboim has received many awards and prizes, including an honorary Knight Commander of the Order of the British Empire, France's Légion d'honneur both as a Commander and Grand Officier, the German Großes Bundesverdienstkreuz and Willy Brandt Award, and, together with the Palestinian-American scholar Edward Said, Spain's Prince of Asturias Concord Award. He has won seven Grammy awards for his work and discography.
Evgeny Igorevitch Kissin (Russian: Евге́ний И́горевич Ки́син Yevgeniy Igorevich Kisin; born 10 October 1971) is a Russian classical pianist. He first came to international fame as a child prodigy. He has been a British citizen since 2002. He is especially known for his interpretations of the works of the Romantic repertoire, particularly Frédéric Chopin, Rachmaninoff and Franz Liszt.
Kissin was born in Moscow to a Russian Jewish family. Recognized as a child prodigy, at age six, he began piano studies at the esteemed Gnessin School of Music for Gifted Children. At the school, he became a student of Anna Kantor, who remained Kissin's only piano teacher.