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All articles starting with R

22,461 articles

Red Light

Red light, 620-750 nm visible radiation, is used in photobiomodulation (low-level light therapy) for skin, wounds, and pain, acting via mitochondrial cytochrome c oxidase; effects are biphasic and dose-dependent.

Red Light Teachers

Red Light Teachers is a 2026 American independent drama film written and directed by Chris Soriano, starring Drea Castro, Chris Soriano, and Hillary Soriano. It follows a Filipina immigrant whose unrecognized teaching credential pushes her into exotic dancing before she gets a high school teaching job, released limited in US theaters January 23, 2026.

Red Lights (2012 film)

Red Lights is a 2012 Spanish–United States thriller directed by Rodrigo Cortés. It features two skeptics who investigate paranormal fraud and confront a famous blind mentalist.

Red Line (Delhi Metro)

The Red Line (Delhi Metro Line 1) runs from Shaheed Sthal in Ghaziabad to Rithala in Delhi, and opened in 2002 as the Delhi Metro's first line.

Red Line (Mumbai Metro)

The Red Line, numbered Line 7, is an elevated Mumbai Metro corridor along the Western Express Highway from Gundavali to Dahisar East, opened in 2022 and 2023.

Red Line (Namma Metro)

The Red Line, also called the Namma Metro Red Line, is a planned 37.8 km Bengaluru metro corridor from Hebbal to Sarjapur, designated Phase 3A.

Red Line Extension

The Red Line Extension is a Chicago Transit Authority project extending the Red Line 5.5 miles south to 130th Street, with four new stations, opening in 2030.

Red Lion Broadcasting Co. v. FCC

Red Lion Broadcasting Co. v. FCC, 395 U.S. 367 (1969), the Supreme Court decision upholding the FCC fairness doctrine, personal attack rules, and free reply time based on broadcast spectrum scarcity.

Red Lobster

Red Lobster is an American casual dining seafood chain founded by Bill Darden in Lakeland, Florida, in 1968, known for Cheddar Bay Biscuits and Endless Shrimp; it filed Chapter 11 bankruptcy in May 2024 and now operates about 540 restaurants under RL Investor Holdings.

Red meat

Red meat: mammalian muscle meat (beef, pork, lamb, veal, horse, goat), classified IARC Group 2A probably carcinogenic in 2015; processed meat is Group 1; 50 g/day processed meat raises colorectal cancer risk 18%.

Red mercury

Red mercury is a purported substance, supposedly used in nuclear weapons, that has never been shown to exist; black-market sales since the late 1980s were fraud.

Red Monastery

The Red Monastery (Arabic: Deir al-Ahmar) is a Coptic Orthodox monastery near Sohag in Upper Egypt, with a Byzantine church preserving extensive late antique wall paintings.

Red mud

Red mud, also known as bauxite residue or red sludge, is the alkaline iron-rich waste produced when alumina is extracted from bauxite ore in the Bayer process.

Red Murdock

Red Murdock (Khalil Elijah Murdock, born 2003) is an American linebacker from Petersburg, Virginia, who played at Buffalo, set the NCAA FBS record with 17 career forced fumbles, and was the Denver Broncos' final 2026 draft pick (Mr. Irrelevant).

Red Napoleon

Red Napoleon: nickname for communist generals (Tukhachevsky, Blyukher, Trotsky) and for Chief Joseph; also a 1929 future-war novel by Floyd Gibbons about Soviet conquest ending in a 1941 Caribbean sea battle.

Red Nose Day Actually

Red Nose Day Actually is a 2017 short film sequel to Love Actually, written by Richard Curtis, directed by Mat Whitecross, aired on BBC One on 24 March 2017 for Comic Relief, with a US cut on NBC featuring Laura Linney and Patrick Dempsey.

Red Notice (film)

Red Notice is a 2021 American action comedy film directed by Rawson Marshall Thurber, starring Dwayne Johnson, Ryan Reynolds, and Gal Gadot as rival thieves.

Red Oak Opera House

The Red Oak Opera House in Red Oak, Iowa, names two venues: a second-floor hall used from about 1881 to 1909 and the Beardsley Opera House of 1909.

Red Oaks

Red Oaks is a Prime Video comedy (2014–2017, three seasons) created by Gregory Jacobs and Joe Gangemi, set in 1985 at a New Jersey country club where NYU student David Meyers works as assistant tennis pro.

Red Oleanders

Red Oleanders is Rabindranath Tagore's English translation, made by Tagore himself, of his Bengali symbolic drama Raktakarabi about a mining city whose ruler enslaves its people for gold.

Red One (film)

Red One (2024) is an Amazon MGM Christmas action comedy directed by Jake Kasdan, starring Dwayne Johnson and Chris Evans. It cost $200-250 million, flopped theatrically at $186 million worldwide, but set Amazon streaming records on Prime Video.

Red onion

Red onion, a red- or purple-skinned cultivar group of Allium cepa (bulb onion), rich in anthocyanins and sulfur compounds; eaten raw in salads and pickles, pricier than yellow or white onions.

Red Onion State Prison

Red Onion State Prison: level V/VI supermax prison in Pound, Wise County, Virginia, opened 1998 under Governor Allen as a 1,200-bed twin of Wallens Ridge; subject of solitary-confinement litigation and 2023 restorative housing law.

Red panda

Red panda (Ailurus fulgens), also called lesser panda, a small bamboo-eating mammal of Himalayan forests, sole living member of Ailuridae, not closely related to the giant panda; about 10,000 remain and IUCN lists it as Endangered.

Red phosphorus

Red phosphorus is a dark red, polymeric allotrope of phosphorus, far less reactive and nontoxic than white phosphorus, used on safety-match striking surfaces and as a flame retardant.

Red pill and blue pill

Red pill and blue pill: the choice Morpheus offers Neo in The Matrix (1999), where red reveals the simulated world's truth and blue restores comforting illusion; the terms later named an anti-feminist manosphere ideology and a trans allegory claimed by the Wachowskis.

Red Pill Blues

Red Pill Blues is Maroon 5's sixth studio album, released November 3, 2017 on 222/Interscope; a minimal, electronic R&B-pop record titled after The Matrix, featuring SZA, Kendrick Lamar, Future, and the Diamond-certified hit Girls Like You with Cardi B.

Red Pill Case

The Red Pill Case (红丸案) was a 1620 Ming palace scandal: the Taichang Emperor died hours after taking two red pills presented by official Li Kezhuo.

Red Planet (film)

Red Planet is a 2000 science fiction film directed by Antony Hoffman, starring Val Kilmer and Carrie-Anne Moss, about a crew stranded on Mars after a solar flare damages their ship.

Red Points

Red Points is a brand protection software company founded in Barcelona that uses AI to detect and remove counterfeit listings, piracy, and impersonation for brands.