All articles starting with R
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Raia gas field
Raia is a gas and condensate field in the pre-salt Campos Basin offshore Rio de Janeiro, Brazil, holding over 1 billion barrels of oil equivalent, with production expected in 2028.
Raibert hopping controller
The Raibert hopping controller is a three-part control scheme for dynamically stable legged robots, introduced by Marc Raibert in the early 1980s to regulate hopping height, speed, and attitude.
Raibo
Raibo (라이보) is a quadruped robot developed at KAIST in South Korea; its RAIBO2 version became the first quadruped to complete a full marathon, in 2024.
Raichal Rabecca
Raichal Rabecca (Raichal Rabecca Philip), Indian actress and Ayurvedic doctor from Vellore, Tamil Nadu, born 1989; Tamil cinema character actress known for Kadaisi Vivasayi's Magistrate Mangayarkarasi, a Tamil Nadu State Film Award winner, and films Good Night, Lucky Man, Meiyazhagan, and Thaai Kizhavi; distinct from other actresses named Rebecca.
Raichle Flexon
Raichle Flexon: Swiss three-piece (cabrio) alpine ski boot introduced 1980/81, using a ribbed external tongue derived from NASA space-suit joint technology; discontinued with Raichle around 1999, revived by K2 as Full Tilt in 2006.
Raichu
Raichu (ライチュウ), National Pokédex No. 0026, is the Electric-type Mouse Pokémon evolved from Pikachu with a Thunder Stone; its Alolan form adds Psychic type, and Mega Raichu X/Y appear in Pokémon Champions.
Rāichūr
Rāichūr (ರಾಯಚೂರು), Raichur district, eastern Karnataka, India, in the Krishna-Tungabhadra doab; 8,386 sq km, 19.29 lakh people (2011), cotton bowl, Hutti gold, Raichur Thermal Power Station, fort built 1294.
Raichur Thermal Power Station
Raichur Thermal Power Station (RTPS) is a 1,720 MW coal-fired power station at Shaktinagar, Raichur district, Karnataka, India, owned by Karnataka Power Corporation Limited. Its eight units were commissioned between 1985 and 2010.
RAID
RAID (Redundant Array of Independent Disks, originally Inexpensive Disks) combines multiple disk drives into logical units for speed, fault tolerance, or both, named in a 1988 Berkeley paper.
Raid (2018 film)
Raid (2018) is a Hindi crime thriller directed by Raj Kumar Gupta, starring Ajay Devgn as income tax officer Amay Patnaik raiding politician Tauji (Saurabh Shukla) in 1981 Lucknow, inspired by the real 1981 Sardar Inder Singh raid.
Raid 2 (film)
Raid 2 (रेड २) is a 2025 Hindi crime thriller, sequel to Raid (2018), directed by Raj Kumar Gupta, starring Ajay Devgn as IRS officer Amay Patnaik against Riteish Deshmukh's Dada Bhai; released 1 May 2025, streaming on Netflix, not the 2014 Indonesian The Raid 2.
RAID 5
RAID 5 is a disk-array layout that stripes data blocks with parity distributed across three or more drives, so it survives any single drive failure.
Raid at Cabanatuan
The Raid at Cabanatuan (Great Raid), January 30, 1945: 6th Ranger Battalion under Lt. Col. Henry Mucci, Alamo Scouts, and Filipino guerrillas freed over 500 Allied POWs from the Japanese Pangatian camp on Luzon.
Raid of Radm
The raid of Radm was a war fought in the land of the Radmān tribe by the Sabaean king Sʿds²ms¹ ʾs¹rʿ against Hadhramaut, Qataban, and tribal allies.
Raid on Entebbe (film)
Raid on Entebbe is a 1977 American docudrama directed by Irvin Kershner, starring Peter Finch and Charles Bronson, dramatizing the 1976 Israeli rescue of hostages in Uganda.
Raid on Maungapōhatu
The raid on Maungapōhatu was a 1916 armed police operation to arrest the Tūhoe prophet Rua Kēnana in New Zealand, in which two Māori men were killed.
Raid on the Medway
The Raid on the Medway (Tocht naar Chatham), 10-14 June 1667, was a Dutch naval attack under Michiel de Ruyter during the Second Anglo-Dutch War that broke the Gillingham chain, burned English warships, captured the Royal Charles, and forced the Peace of Breda.
Raid: Shadow Legends
Raid: Shadow Legends (RAID) is Plarium's free-to-play turn-based dark fantasy collection RPG set in Teleria, launched 2019 on iOS and Android, later PC, with 900+ gacha-summoned Champions, 100M+ downloads, and heavy licensed crossovers.
Raiden (Metal Gear)
Raiden (雷電) is the Metal Gear series protagonist introduced in Metal Gear Solid 2 (2001), a VR-trained FOXHOUND recruit and former Liberian child soldier ('Jack the Ripper') later turned cyborg ninja starring in Metal Gear Rising: Revengeance (2013).
Raiden (Mortal Kombat)
Raiden (Mortal Kombat) thunder god of Earthrealm, based on Japanese Raijin and Big Trouble in Little China; franchise staple since 1992, with Dark Raiden corruption arc and mortal champion role in Mortal Kombat 1 (2023).
Raiden (musician)
Raiden, real name Han Seok-hyun (한석현), is a South Korean DJ and producer who debuted in 2017, signed with SM Entertainment in 2019, and played the 2018 PyeongChang Olympics closing ceremony.
Raiden (雷電) (video game)
Raiden (雷電) is a 1990 vertical-scrolling arcade shoot 'em up by Seibu Kaihatsu, piloting the Raiden fighter against the Cranassian invasion; it sold about 17,000 cabinets, spawned Raiden II–V and Raiden Fighters, and was ported widely as Raiden Trad and The Raiden Project.
Raiden Tameemon (雷電爲右衞門)
Raiden Tameemon (雷電為右衛門), born Seki Tarōkichi in 1767, was an Edo-period sumo ōzeki with a record 254–10 and 96.2% win rate, yet never promoted to yokozuna; honored in 1900 as the Peerless Rikishi.
Raiden-18
RAIDEN-18 (雷電18号) is a gag one-shot manga series by Hiromu Arakawa of Fullmetal Alchemist fame, serialized in Shogakukan's Monthly Sunday GX from 2005 to 2021 about mad scientist Dr. Tachibana and her corpse-built creature Raiden 18, collected in one volume in June 2021.
Raiders of the Lost Ark
Raiders of the Lost Ark is a 1981 American adventure film directed by Steven Spielberg, in which Harrison Ford's archaeologist Indiana Jones races Nazi agents to find the Ark of the Covenant.
Raif Badawi
Raif Badawi (رائف بدوي), Saudi blogger and founder of the Free Saudi Liberals website, sentenced in 2014 to 10 years, 1,000 lashes, and a 1 million riyal fine for insulting Islam; received 50 lashes, released 11 March 2022, still under a travel ban.
Raif S. Geha
Raif S. Geha, born 1945, is a pediatric immunologist at Boston Children's Hospital and Harvard Medical School who identified genetic causes of primary immunodeficiency and advanced understanding of atopic dermatitis.
Raiffeisen Bank International
Raiffeisen Bank International (RBI) is a banking group serving Central and Eastern Europe through subsidiary banks in 11 markets, with 18.6 million customers, and is the largest Western bank still operating in Russia.
Raigad district (रायगड जिल्हा)
Raigad district (रायगड जिल्हा), formerly Kolaba, is a Konkan coastal district of Maharashtra with headquarters at Alibag, 15 talukas, 2.63 million people (2011), Raigad Fort, and major planned developments including Mumbai 3.0 and NAINA.
Raigad Fort
Raigad Fort, formerly known as Rairi, is a hill fort in Maharashtra, India, that served as Chhatrapati Shivaji Maharaj's capital and the scene of his 1674 coronation.