All articles starting with R
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Ringing (telephony)
Ringing in telephony is the alerting of a called party to an incoming call, produced by alternating ringing voltage on the line; the word also covers the caller's ringback tone.
Ringing signal
A ringing signal is the high-voltage, low-frequency AC voltage a telephone exchange, PBX, or analog adapter applies to a subscriber line to alert the called party of an incoming call.
Ringkøbing Fjord
Ringkøbing Fjord, a ~300 km² shallow brackish coastal lagoon on Denmark's west coast, cut off from the North Sea by Holmsland Klit and regulated since 1931 by the Hvide Sande sluice; Ramsar and Natura 2000 site famed for waterbirds and Tipperne reserve.
Ringling Bros. and Barnum & Bailey Circus
Ringling Bros. and Barnum & Bailey Circus, called "The Greatest Show on Earth," was an American circus formed in 1919, closed in 2017, and revived in 2023.
Ringling Bros. and Barnum & Bailey Clown College
Ringling Bros. and Barnum & Bailey Clown College (1968-1997) was Irvin Feld's tuition-free clown training school in Venice, Florida; it graduated nearly 1,300 clowns over about 10-week courses before closing in 1997.
Ringling brothers
Ringling brothers (originally Rüngling), seven Wisconsin siblings who founded a Baraboo wagon show in 1884, bought Barnum & Bailey in 1907, merged the shows in 1919, sold to the Feld family in 1967, closed 2017, and returned animal-free in 2023.
Ringling College of Art and Design
Ringling College of Art and Design, a private not-for-profit art and design college in Sarasota, Florida, founded 1931 by Ludd M. Spivey with John Ringling; about 1,700 undergraduates in 13 BFA/BA programs, known for animation and motion design rankings.
Ringo
Ringo is a 2018 two-player abstract board game by Julien Griffon, published by Steffen Spiele and Helvetiq; players place discs in metal rings and move rings, aiming for four in a row, with no board.
Ringo (album)
Ringo (album): Ringo Starr's third studio album, Apple Records, 1973, produced by Richard Perry. Only post-breakup album featuring all four ex-Beatles; No. 2 Billboard 200, US No. 1 singles "Photograph" and "You're Sixteen", RIAA platinum.
Ringo Sheena (椎名林檎)
Ringo Sheena (椎名林檎), born 1978 in Fukuoka, is a Japanese singer-songwriter and leader of Tokyo Jihen; debuted 1998 with Kōfukuron, sold millions with her first two albums, and released the 2026 album Kinjite.
Ringo Starr
Ringo Starr (born Richard Starkey, 1940, Liverpool) is the Beatles' drummer from August 1962 and a solo artist; known for left-handed playing on a right-handed Ludwig kit, No. 1 solo hits "Photograph" and "You're Sixteen," the All-Starr Band, and 2018 knighthood.
Ringo Starr & His All-Starr Band
Ringo Starr & His All-Starr Band (founded 1989, concept by David Fishof) is Ringo Starr's rotating touring supergroup. Members perform their own hits alongside Beatles and Starr solo songs; the lineup unchanged since 2024 includes Lukather, Hay, Ham, Stuart, Bissonette, and Johnson.
Ringo Starr discography
Ringo Starr discography: solo albums, singles, EPs, and live releases by the Beatles drummer Richard Starkey, from Sentimental Journey and Beaucoups of Blues (1970) through Ringo (1973) to the T Bone Burnett country albums Look Up and Long Long Road (2026).
Rings (2017 film)
Rings, also known as The Ring 3, is a 2017 American supernatural horror film directed by F. Javier Gutiérrez, the third installment of the American Ring franchise.
Rings of Chariklo and Haumea
The rings of Chariklo and Haumea are the first ring systems found around Solar System bodies other than the giant planets, discovered in 2013 and 2017.
Rings of Earth
Rings of Earth, or Earth's rings, are a hypothetical ring system around Earth; none exists today, but a debris ring may have existed 466 million years ago.
Rings of Jupiter
The Rings of Jupiter, or Jupiter's rings, are faint dusty rings discovered by Voyager 1 in 1979, fed by dust from the planet's small inner moons.
Rings of Neptune
The rings of Neptune are five faint, narrow rings and four dusty ring arcs encircling Neptune, confirmed by Voyager 2 images in 1989 and named Galle, Le Verrier, Lassell, Arago, and Adams.
Rings of Power
The Rings of Power, also called the Great Rings, are the nineteen rings forged by Elves of Eregion in J. R. R. Tolkien's Middle-earth legendarium.
Rings of Saturn
Saturn's rings, also called the Saturnian rings, are the largest and brightest planetary ring system in the Solar System, made of water ice and spanning about 70,000 km.
Rings of Saturn (band)
Rings of Saturn (band), the "aliencore" technical deathcore act formed in 2009 in the San Francisco Bay Area by Lucas Mann; albums Embryonic Anomaly, Dingir, Lugal Ki En, Ultu Ulla, Gidim; instrumental since Ian Bearer's 2021 exit.
Rings of Uranus
The rings of Uranus, also called the Uranian rings, are a system of 13 dark, narrow rings around the ice giant Uranus, discovered during a stellar occultation on 10 March 1977.
Ringtail
Ringtail (Bassariscus astutus), also called ringtail cat, cacomistle, or miner's cat, is a nocturnal procyonid of western North America with a black-and-white ringed tail and 180-degree rotating hind feet; IUCN Least Concern.
Ringtone
A ringtone, also called a mobile phone ringtone, is the sound a phone plays to signal an incoming call; Nokia's tune introduced the musical ringtone in 1994.
Ringu
Ringu (リング) is Hideo Nakata's 1998 Japanese horror film adapted from Koji Suzuki's 1991 novel Ring, about a cursed videotape that kills viewers in seven days; it sparked the J-horror boom and was remade as The Ring (2002).
Ringvassøya
Ringvassøya (Ráneš) is Norway's sixth largest mainland island, 661 km², in Tromsø and Karlsøy municipalities north of Tromsø, linked by the Kvalsund Tunnel, with Hansnes as Karlsøy's administrative center.
Ringwall Rentmauer (Weilrod)
Ringwall Rentmauer: an unexcavated, probably Celtic ringwall enclosure on the Eichelberg near Rod an der Weil, Weilrod, Hesse, about 118 × 85 m at 390 m elevation, first recorded in 1849, dating disputed between La Tène and early medieval.
Ringwoodite
Ringwoodite is a high-pressure form of olivine, the most abundant mineral in Earth's mantle transition zone at about 525 to 660 km depth, first found in a meteorite.
Ringworld
Ringworld (1970) is Larry Niven's Known Space novel about Louis Wu, Nessus, Teela Brown, and Speaker-to-Animals exploring a vast artificial ring around a star; it won the 1970 Nebula and 1971 Hugo Awards.
Rinjani Lombok Biosphere Reserve
Rinjani Lombok Biosphere Reserve, a UNESCO MAB site designated 2018 covering all of Lombok Island (459,097 ha), Indonesia, zoned core-buffer-transition around Mount Rinjani (3,726 m) and the Samalas caldera, co-governed with the Rinjani-Lombok UNESCO Global Geopark by the MIDAS Agency.