George Raymond Richard Martin, also known as GRRM, is an American novelist and short story writer in the fantasy, horror, and science fiction genres, screenwriter, and television producer. He wrote the series of epic fantasy novels A Song of Ice and Fire, which was adapted into the HBO series Game of Thrones (2011–2019).
A Song of Ice and Fire is a series of epic fantasy novels by the American novelist and screenwriter George R. R. Martin. He began the first volume of the series, A Game of Thrones, in 1991, and it was published in 1996. Martin, who initially envisioned the series as a trilogy, has published five out of a planned seven volumes. The fifth and most recent volume of the series, A Dance with Dragons, was published in 2011 and took Martin six years to write. He is currently writing the sixth novel, The Winds of Winter. A seventh novel A Dream of Spring is planned.
John Ronald Reuel Tolkien was an English writer, poet, philologist, and academic. He was the author of the high fantasy works The Hobbit and The Lord of the Rings.
In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how fast light travels through the material. It is defined as
Rhythm and blues, abbreviated as R&B, is a genre of popular music that originated in African American communities in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly to urban African Americans, at a time when "urbane, rocking, jazz based music with a heavy, insistent beat" was becoming more popular. In the commercial rhythm and blues music typical of the 1950s through the 1970s, the bands usually consisted of piano, one or two guitars, bass, drums, one or more saxophones, and sometimes background vocalists. R&B lyrical themes often encapsulate the African-American experience of pain and the quest for freedom and joy, as well as triumphs and failures in terms of relationships, economics, and aspirations.
The Lord of the Rings is an epic high-fantasy novel written by English author and scholar J. R. R. Tolkien. The story began as a sequel to Tolkien's 1937 fantasy novel The Hobbit, but eventually developed into a much larger work. Written in stages between 1937 and 1949, The Lord of the Rings is one of the best-selling novels ever written, with over 150 million copies sold.
Torque, moment, moment of force, rotational force or "turning effect" is the rotational equivalent of linear force. The concept originated with the studies by Archimedes of the usage of levers. Just as a linear force is a push or a pull, a torque can be thought of as a twist to an object around a specific axis. Another definition of torque is the product of the magnitude of the force and the perpendicular distance of the line of action of force from the axis of rotation. The symbol for torque is typically , the lowercase Greek letter tau. When being referred to as moment of force, it is commonly denoted by M.
Robert Sylvester Kelly is an American singer, songwriter, musician, record producer, actor and former semi-professional basketball player from Illinois. He has been credited with helping to redefine R&B and hip hop, earning nicknames such as "the King of R&B", "the King of Pop-Soul", and the "Pied Piper of R&B".
ARM, previously Advanced RISC Machine, originally Acorn RISC Machine, is a family of reduced instruction set computing (RISC) architectures for computer processors, configured for various environments. Arm Holdings develops the architecture and licenses it to other companies, who design their own products that implement one of those architectures—including systems-on-chips (SoC) and systems-on-modules (SoM) that incorporate memory, interfaces, radios, etc. It also designs cores that implement this instruction set and licenses these designs to a number of companies that incorporate those core designs into their own products.
In statistics, the Pearson correlation coefficient, also referred to as Pearson's r, the Pearson product-moment correlation coefficient (PPMCC) or the bivariate correlation, is a statistic that measures linear correlation between two variables X and Y. It has a value between +1 and −1, where 1 is total positive linear correlation, 0 is no linear correlation, and −1 is total negative linear correlation.
Allahrakka Rahman, known professionally as A. R. Rahman, is an Indian composer, singer and music producer who works predominantly in Tamil and Hindi movies. He is nicknamed "Isai Puyal" and Mozart of Madras". In 2010, the Indian government awarded him the Padma Bhushan, the nation's third-highest civilian award. Among Rahman's awards are six National Film Awards, two Academy Awards, two Grammy Awards, a BAFTA Award, a Golden Globe Award, fifteen Filmfare Awards and seventeen Filmfare Awards South.
Research and development, known in Europe as research and technological development (RTD), refers to innovative activities undertaken by corporations or governments in developing new services or products, or improving existing ones. Research and development constitutes the first stage of development of a potential new service or the production process.
R is a programming language and free software environment for statistical computing and graphics supported by the R Foundation for Statistical Computing. The R language is widely used among statisticians and data miners for developing statistical software and data analysis. Polls, data mining surveys, and studies of scholarly literature databases show substantial increases in popularity; as of June 2020, R ranks 9th in the TIOBE index, a measure of popularity of programming languages.
Contemporary R&B is a music genre that combines elements of rhythm and blues, pop, soul, funk, hip hop and electronic music.
Gerald Rudolph Ford Jr. was an American politician who served as the 38th president of the United States from August 1974 to January 1977. Before his accession to the presidency, Ford served as the 40th vice president of the United States from December 1973 to August 1974. Ford is the only person to have served as both vice president and president without being elected to either office by the Electoral College.
R.E.M. was an American rock band from Athens, Georgia, formed in 1980 by drummer Bill Berry, guitarist Peter Buck, bassist Mike Mills, and lead vocalist Michael Stipe. Additionally, many liner notes from the band's albums list attorney Bertis Downs and manager Jefferson Holt as non-musical members. One of the first alternative rock bands, R.E.M. was noted for Buck's ringing, arpeggiated guitar style, Stipe's distinctive vocal quality, unique stage presence and obscure lyrics, Mills's melodic basslines and backing vocals, and Berry's tight, economical drumming, and backing vocals of his own. In the early 1990s, other alternative rock acts such as Nirvana and Pavement viewed R.E.M. as a pioneer of the genre. After Berry left the band in 1997, through some changes in musical style to include electronic music and pop rock sounds, the band continued its career in the 2000s with mixed critical and commercial success. The band broke up amicably in 2011 with members devoting time on solo projects despite having sold more than 85 million records worldwide and becoming one of the world's best-selling music artists.
In mathematics, the Pythagorean theorem, also known as Pythagoras' theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides. This theorem can be written as an equation relating the lengths of the sides a, b and c, often called the "Pythagorean equation":
