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Beryl ( BERR-əl) is a mineral composed of beryllium aluminium silicate with the chemical formula Be3Al2Si6O18. Well-known varieties of beryl include emerald and aquamarine. Naturally occurring, hexagonal crystals of beryl can be up to several meters in size, but terminated crystals are relatively rare. Pure beryl is colorless, but it is frequently tinted by impurities; possible colors are green, blue, yellow, pink, and red (the rarest). It is an ore source of beryllium.
Topaz is a silicate mineral of aluminium and fluorine with the chemical formula Al2SiO4(F,OH)2. It is used as a gemstone in jewelry and other adornments. Common topaz in its natural state is colorless, though trace element impurities can make it pale blue or golden brown to yellow orange. Topaz is often treated with heat or radiation to make it a deep blue, reddish-orange, pale green, pink, or purple.
A color term is a word or phrase that refers to a specific color. The color term may refer to human perception of that color which is usually defined according to the Munsell color system, or to an underlying physical property. There are also numerical systems of color specification, referred to as color spaces.
Billy Higgins was an American jazz drummer. He played mainly free jazz and hard bop.
A color wheel or color circle is an abstract illustrative organization of color hues around a circle, which shows the relationships between primary colors, secondary colors, tertiary colors etc.
RYB is a subtractive color model used in art and applied design in which red, yellow, and blue pigments are considered primary colors. Under traditional color theory, this set of primary colors was advocated by Moses Harris, Michel Eugène Chevreul, Johannes Itten and Josef Albers, and applied by countless artists and designers. The RYB color model underpinned the color curriculum of the Bauhaus, Ulm School of Design and numerous art and design schools that were influenced by the Bauhaus, including the IIT Institute of Design, Black Mountain College, Design Department Yale University, the Shillito Design School, Sydney, and Parsons School of Design, New York.
Leila Hyams was an American film and stage actress, model, and vaudevillian, who came from a show business family. Her relatively short film career began in 1924 during the era of silent films and ended in 1936. The blonde blue-eyed ingenue and leading lady appeared in more than 50 film roles and remained a press favourite, with numerous magazine covers.
The peso boliviano was the currency of Bolivia from January 1, 1963, until December 31, 1986. It was replaced by the boliviano. It was divided into 100 centavos. The conversion rate was 1,000,000 pesos bolivianos to 1 boliviano. "$b." was the currency symbol for the peso boliviano.
Firehouse Tales is an American animated children's television series created by Sidney J. Bailey, produced by Warner Bros. Animation as the only original series for Cartoon Network's now-defunct Tickle-U preschool programming block. The series follows three anthropomorphic fire engines who attend firefighting school.
The Rainbow Codes were a series of code names used to disguise the nature of various British military research projects. They were mainly used by the Ministry of Supply from the end of the Second World War until 1958, when the ministry was broken up and its functions distributed among the forces. The codes were replaced by an alphanumeric code system.
Beryl Agatha Gilroy was a Guyanese educator, novelist, ethno-psychotherapist, and poet. The Guardian described her as "one of Britain's most significant post-war Caribbean migrants." She emigrated to London in 1951 as part of the Windrush generation to attend the University of London, then spend decades teaching, writing, and improving education. She worked primarily with Black women and children as a psychotherapist and her children's books are lauded as some of the first representations of Black London. She is perhaps best known as the first Black head teacher in London.
Wilton Lewis Felder was an American saxophone and bass player, and is best known as a founding member of the Jazz Crusaders, later known as The Crusaders. Felder played bass on the Jackson 5's hits "I Want You Back" and "ABC" and on Marvin Gaye's "Let's Get It On".
George Worsley Adamson, RE, MCSD was a book illustrator, writer, and cartoonist, who held American and British dual citizenship from 1931.
Leila Antoinette Sterling Mackinlay was a British writer of romance novels from 1930 to 1979 as Leila S. Mackinlay or Leila Mackinlay and also under the pseudonym Brenda Grey. Some of her novels are based on real people like Madame Vestris, Lola Montez or Jane Elizabeth Digby; she also wrote Musical Productions, a musical book. She was the daughter of the musician and writer Malcolm Sterling Mackinlay and granddaughter of the vocalist Antoinette Sterling.
Geraldine Houser is a British former film and television actress and the mother of video game producers Sam and Dan Houser.
Maureen Peters was a historical novelist, under her own name and pseudonyms such as Veronica Black, Catherine Darby, Belinda Gray, Levanah Lloyd, Judith Rothman, Elizabeth Law and Sharon Whitby.
Leila Elizabeth Locke was a Guyanese artist. Born in England, she lived in Georgetown, Guyana, from 1958 until her death, taking out Guyanese citizenship in the early 1970s.
Richard Greene is an American violinist. In addition to his 11 solo albums and his recordings with Seatrain, Muleskinner, and the Greene String Quartet, he has been featured as a performer on many albums by other artists.