All articles A–Z
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AK Steel
AK Steel was an American steelmaker headquartered in West Chester, Ohio, producing flat-rolled carbon, stainless, and electrical steels, tracing its roots to ARMCO, founded in 1899, and acquired by Cleveland-Cliffs in March 2020.
Ak Tag
Ak Tag (四岔雪峰, Sicha Xuefeng) is a 6,748 m peak in the Altun Shan, Xinjiang, China, the range's highest point, with 1,920 m prominence; first climbed 1 September 2012 by the Swedish climber Corax from the south.
AK vs AK
AK vs AK: 2020 Hindi-language black comedy thriller on Netflix, directed by Vikramaditya Motwane, starring Anil Kapoor and Anurag Kashyap as themselves in a kidnapping feud; written by Avinash Sampath, originally AK vs SK with Shahid Kapoor.
AK-101
The AK-101 is a selective-fire assault rifle produced by the Izhmash plant in Izhevsk, Russia, chambered for 5.56×45mm NATO; an export adaptation of the AK-74M in the AK-100 series, it saw limited sales.
AK-103
The AK-103 is a Russian gas-operated assault rifle chambered for 7.62 × 39 mm, the full-length 7.62 mm member of the AK-100 export series developed by Izhmash.
AK-104
The AK-104 (АК-104) is a Russian compact carbine assault rifle chambered in 7.62×39 mm, the short-barreled version of the AK-103, adopted by the Russian Armed Forces in 2001.
AK-107
The AK-107 is a Russian assault rifle in 5.45×39 mm built around a balanced automatic recoil system with counter-moving gas pistons, developed at Izhmash in Izhevsk.
AK-12 (АК-12)
The AK-12 (АК-12), also known as the Kalashnikov AK-12, is a 5.45×39mm assault rifle by Kalashnikov Concern and Russia's standard rifle since 2020.
AK-230 (АК-230)
The AK-230 (АК-230) was a Soviet twin-barrel 30 mm radar-directed naval anti-aircraft gun mount, the first fully automatic mount in the USSR, widely used from the 1960s.
AK-47
The AK-47, or Avtomat Kalashnikova, is a Soviet gas-operated assault rifle designed by Mikhail Kalashnikov and adopted in 1949, with more than 70 million AK-type rifles produced since.
AK-47 (2004 film)
AK-47 is a 2004 Hindi action thriller directed by Raam Shetty, starring Audhitya Singh, Sheetal Bavishi, Om Puri, and Ashish Vidyarthi; released 1 October 2004, a box-office disaster.
AK-630
The AK-630 is a Soviet and Russian naval close-in weapon system with a six-barrel 30 mm rotary cannon firing 4,000 to 5,000 rounds per minute, adopted in 1976.
AK-74 (Автомат Калашникова образца)
The AK-74 is a Soviet gas-operated assault rifle chambered for the 5.45 × 39 mm cartridge, adopted by the Soviet Army in 1974 as the third major Kalashnikov rifle, replacing the AKM.
Ak-Ene Corona
Ak-Ene Corona is a 150 km diameter corona on Venus at 9.40°N, 254.70°E in the Hecate Chasma quadrangle (V-28), named for the Altai 'White Mother' goddess and IAU-approved in 2003.
Ak-Mechet'
Ak-Mechet' (Ак-Мечеть, "white mosque") is a toponym for the Crimean Khanate city that became Simferopol, the town now called Chornomorske, associated Scythian burial sites, and a Kazakh memorial complex near Kulsary.
Ak-Zhayik Biosphere Reserve
Ak-Zhayik Biosphere Reserve (Ақжайық) is a UNESCO biosphere reserve in western Kazakhstan, designated in 2014, protecting the Ural River delta wetlands and a major Eurasian bird migration route.
AK3280
AK3280 is an oral antifibrotic drug candidate by Shanghai Ark Biopharmaceutical for idiopathic pulmonary fibrosis, derived from pirfenidone, with positive Phase 2 results in 2025.
AKA (rapper)
AKA (Kiernan Jarryd Forbes, 1988–2023), also Supa Mega, South African rapper from Cape Town; Entity founder, Altar Ego through Mass Country, SAMA and Metro FM winner, shot dead in Durban in February 2023.
Aka Akasaka (赤坂 アカ)
Aka Akasaka (赤坂アカ) is the pen name of a Japanese manga writer and illustrator, born 1988 in Niigata, known for Kaguya-sama: Love Is War (65th Shogakukan Manga Award) and as story author of Oshi no Ko with artist Mengo Yokoyari; since 2022 he works only as an original creator.
Aka Charlie Sheen
Aka Charlie Sheen is Andrew Renzi's two-part 2025 Netflix documentary in which actor Charlie Sheen, seven years sober, recounts his stardom, addiction, HIV disclosure, and recovery, with interviews from Richards, Mueller, Penn, and Cryer.
Aka Manto (赤マント)
Aka Manto (赤マント, Red Cloak; Red Paper, Blue Paper) is a Japanese urban legend in which a spirit in a school toilet asks red or blue, with fatal results; documented from 1939 Tokyo rumors and 1930s school recollections.
Aka-dake
Aka-dake (赤岳), 2,899 m, is the highest peak of the Yatsugatake range on the Nagano–Yamanashi border, a Hyakumeizan and ultra-prominent summit (about 1,916 m) known for chain-and-ladder ridges, summit huts, and winter climbing near Tokyo.
Akaal mein Saras
Akaal mein Saras (अकाल में सारस, "Saras in the Famine") is a 1988 Hindi poetry collection by Kedarnath Singh that won the 1989 Sahitya Akademi Award.
Akaal: The Unconquered
Akaal: The Unconquered is a 2025 Punjabi-language Indian historical action drama written, directed, and produced by Gippy Grewal, co-produced by Dharma Productions. Released 10 April 2025 in Punjabi and Hindi, it stars Grewal as fictional warrior Sardar Akaal Singh defending his 1840s Punjab village from Jangi Jahan.
Akaash Vani (आकाश वाणी)
Akaash Vani (आकाश वाणी) is a 2013 Hindi romance-drama directed by Luv Ranjan, starring Kartik Aaryan and Nushrat Bharucha, about a love marriage broken by family status fears and an abusive arranged marriage; it flopped at the box office.
Akabori amino-acid reaction
The Akabori amino-acid reactions are three organic reactions described by Japanese chemist Shirō Akabori between 1927 and 1952, converting α-amino acids into aldehydes, α-amino aldehydes, or amino alcohols.
Akacias Oil Field
Akacias Oil Field is a heavy-oil field in the Llanos Basin of Colombia, discovered in 2010 and operated by Ecopetrol in the Meta department, southeast of Bogotá.
Akadeemia
Akadeemia is an Estonian cultural journal, the monthly of the Estonian Writers' Union in Tartu, founded in its present form in April 1989 and reviving a title published 1937–1940.
Akadémiai Kiadó
Akadémiai Kiadó is a Hungarian scholarly publishing house tracing its origins to 1828, when the Hungarian Academy of Sciences planned its publishing program. Majority-owned by Wolters Kluwer, it publishes nearly 60 peer-reviewed journals.
Akademie der Künste
The Akademie der Künste (Academy of Arts) is a membership society of artists in Berlin, founded in 1696 by Elector Frederick III of Brandenburg and one of Europe's oldest cultural institutions.