| Racial discriminationRacial discrimination is the practice of perceiving or defining persons to be of lesser or greater intrinsic value, capability, or merit, based on their racial characteristics, and acting on that perception to the detriment of its targets. Racially discri | RaïRa [] is a form of folk music, originated in Oran, Algeria from Bedouin shepherds, mixed with Spanish, French, African-American and Arabic musical forms, which dates back to the 1930s and has been evolved by women mainly. The word "Rai" is Arabic for "opi | Rafo MuñizRafo Muniz (born approx. 1959) is a famous Puerto Rican actor, comedian, director and, more notably, producer of television shows and concerts. The son of legendary comic actor and producer Tommy Muniz and brother of Pedro Muniz; who is also a comedian, p |
| Ralph FiennesSpider Ralph Nathaniel Fiennes (born December 22, 1962) is a British actor. Born in Suffolk, he is the older brother of actor Joseph Fiennes. Having trained at the Royal Academy of Dramatic Art, he joined the Royal Shakespeare Company in 1988. He is the o | Rabbi Menachem MendelThe first Rabbi Menachem Mendel ( 1789 1866) of the Chabad Lubavitch Orthodox hasidic Judaism movement was the third Rebbe of the Chabad dynasty. He was also known as the Tzemach Tzedek (Righteous Sprout), the name for a voluminous compendium of Jewish ha | Rabbi ShmuelRabbi Shmuel ( 1834 1882) , was the fourth Chabad Lubavitch Rebbe''. The son of Rabbi Menachem Mendel who was the third Rebbe''. He was also known as the Maharash''. Preceded by: Rabbi Menachem Mendel Chabad Lubavitch Succeeded by: Sholom Dovber Shmuel, R |
| Raoul WallenbergRaoul Wallenberg ( August 4, 1912 [date of death uncertain]) was a Swedish diplomat and a member of the influential Swedish Wallenberg family. As a Legation Counsellor in Budapest, he used his diplomatic status to save many Hungarian Jews during the later | Ray transfer matrix analysisRay transfer matrix analysis (also known as ABCD matrix analysis is a type of ray tracing technique used in the design of some optical systems, particularly lasers. It involves the construction of a ray transfer matrix which describes the optical system; | RadiosondeA radiosonde is a unit for use in weather balloons that measures various atmospheric parameters and transmits them to a fixed receiver. A frequency band at 403 MHz is reserved for radiosondes''. The device is tied to an helium filled balloon, which lifts |