All articles starting with S
44,216 articles
Shadow person
Shadow person: a featureless dark humanoid figure reported at the edge of vision or during sleep paralysis; also called shadow people or Hat Man; explained by sleep science, named differently across cultures.
Shadow play
Shadow play (shadowgraph, shadow theater): theatre of shadows cast by flat puppets or actors on a backlit screen. Traditions include Karagöz, wayang kulit, Chinese and Khmer shadow puppetry; several hold UNESCO listings.
Shadow price
A shadow price is the imputed value of one more unit of a good or resource, used in optimization and cost-benefit analysis when market prices are absent or distorted.
Shadow Robot Company
The Shadow Robot Company is a London-based robotics firm founded in 1997, best known for its five-fingered Shadow Dexterous Hand, used by OpenAI, Google Brain, and NASA.
Shadow the Hedgehog
Shadow the Hedgehog (シャドウ・ザ・ヘッジホッグ) is Sega's black hedgehog rival to Sonic, debuting in Sonic Adventure 2 (2001), starring in the 2005 gun-toting spin-off, Sonic X Shadow Generations (2024), and the Sonic 3 film voiced by Keanu Reeves.
Shadow the Hedgehog (video game)
Shadow the Hedgehog (シャドウ・ザ・ヘッジホッグ) is Sega Studio USA's 2005 3D action spin-off for PS2, GameCube, and Xbox, directed by Takashi Iizuka, with branching hero/villain missions, guns, vehicles, ten endings, a 45 Metacritic score, and no modern re-release.
Shadow tomography
Shadow tomography is a quantum information task, introduced by Scott Aaronson in 2017, that estimates many measurement probabilities of an unknown quantum state using only logarithmically many copies.
Shadow Warrior (1997 video game)
Shadow Warrior (1997) is 3D Realms' Build-engine first-person shooter starring ninja Lo Wang, released May 13, 1997; known for drivable vehicles, 22 levels, and Duke Nukem 3D-style humor.
Shadow Warrior 2
Shadow Warrior 2 is a 2016 first-person looter-shooter by Flying Wild Hog and Devolver Digital, sequel to the 2013 Shadow Warrior reboot, starring Lo Wang with four-player co-op, procedural levels, and Metacritic 78 (PC).
Shadow zone (acoustics)
A shadow zone is a quiet region of the ocean that sound rays cannot penetrate, due to refraction by the sound speed profile or barriers like seamounts.
Shadowa
Shadowa is a small island in Pemba North Region, Tanzania, in the Zanzibar Archipelago, about 2.5 miles (4.1 km) from Pemba Island; also recorded as a cove near Kitambuu, ward Kwaalinatu, time zone Africa/Dar es Salaam.
Shadowdark
Shadowdark is a 2023 tabletop role-playing game by American designer Kelsey Dionne, published by The Arcane Library, blending old-school D&D dungeon crawling with streamlined modern d20 rules.
Shadowgraph
A shadowgraph is an optical technique that makes refractive-index gradients in air or water visible, revealing shock waves, plumes, and sprays in fluid dynamics and aerodynamics.
Shadowheart
Shadowheart (Jenevelle Hallowleaf) is a high half-elf Trickery Domain Cleric of Shar and origin companion in Baldur's Gate 3, voiced by Jennifer English; her Daughter of Darkness quest, Selûne-or-Shar choice, and record 4,890,005 respeccs distinguish her.
Shadowhunters
Shadowhunters (Shadowhunters: The Mortal Instruments) is a Freeform supernatural drama, 2016-2019, adapted from Cassandra Clare's Mortal Instruments novels; 55 episodes, three seasons, cancelled in 2018 over economics, ended with a two-hour 2019 finale.
Shadowing (research method)
Shadowing is a qualitative research method in which a researcher follows a single participant through daily activities, combining direct observation with on-the-go questions and later interviews.
Shadowlands (1993 film)
Shadowlands (1993) is Richard Attenborough's biographical romantic drama, written by William Nicholson, starring Anthony Hopkins as C.S. Lewis and Debra Winger as Joy Gresham; Oscar-nominated, BAFTA Best British Film winner.
Shadowrun
Shadowrun is a cyberpunk-fantasy tabletop role-playing game first published by FASA Corporation in 1989, set in a near-future world where magic has returned alongside cybernetic technology.
Shadowrun Returns
Shadowrun Returns is a 2013 turn-based tactical RPG by Harebrained Schemes, Kickstarter-funded at $1.8 million, set in cyberpunk Seattle 2054, with the Dead Man's Switch campaign and Dragonfall DLC.
Shadowrun: Dragonfall
Shadowrun: Dragonfall is Harebrained Schemes' 2014 turn-based cyberpunk RPG expansion for Shadowrun Returns, set in Berlin's Flux State in 2054, later released standalone as the Director's Cut with 17 missions.
Shadowrun: Hong Kong
Shadowrun: Hong Kong is a 2015 turn-based cyberpunk cRPG by Harebrained Schemes, third in the Shadowrun Returns series, set in 2056's corporate Hong Kong Free Enterprise Zone, crowdfunded at $1.2M, with a revamped stealth-based Matrix and Extended Edition bonus campaign.
Shadows Fall
Shadows Fall, Massachusetts metalcore/thrash band formed 1996, NWOAHM act; The War Within hit Billboard No. 20, sold 300,000; hiatus 2015, reunion 2021, comeback album due 2027.
Shadows of Forgotten Ancestors (Тени забытых предков)
Shadows of Forgotten Ancestors (Тени забытых предков; Ukrainian: Тіні забутих предків), also released as Wild Horses of Fire, is Sergei Parajanov's 1964 Dovzhenko Studio film adapted from Kotsiubynskyi's 1911 Hutsul novella, famed for its poetic style, dissident 1965 Kyiv premiere, and blacklisting of its director.
Shadowsocks
Shadowsocks is a secure split proxy loosely based on SOCKS5, first shared by the developer clowwindy in 2012, that carries TCP and UDP traffic through encrypted tunnels.
Shadowverse: Worlds Beyond
Shadowverse: Worlds Beyond (シャドウバース ワールズビヨンド) is Cygames' free-to-play digital CCG, sequel to Shadowverse, released June 17, 2025 on PC, Android, and iOS; known for the super-evolution mechanic, Shadowverse Park social hub, 40-card decks, and a criticized card economy.
ShadPS4
ShadPS4 is an early open-source PlayStation 4 emulator for Windows, Linux, and macOS, written in C++ and started in 2022 by a PCSX2 founder. It can run games like Bloodborne.
Shadrach, Meshach, and Abednego
Shadrach, Meshach, and Abednego, Hebrew names Hananiah, Mishael, and Azariah, are three Judean exiles in the Book of Daniel who refused to worship Nebuchadnezzar's golden image and survived the fiery furnace unharmed.
Shadrack Sibiya
Shadrack Mongo Sibiya, former SAPS deputy national commissioner for crime detection, resigned 12 October 2026 with a dishonourable discharge amid Madlanga commission corruption allegations and rape and sexual-grooming charges, which he denies.
Shaduppum
Shaduppum, modern Tell Harmal, was a small fortified Old Babylonian town of the kingdom of Ešnunna near Baghdad, whose roughly 3000 cuneiform tablets include the Laws of Ešnunna.
Shaduppum tablets
The Shaduppum tablets, also called the Tell Harmal tablets, are an Old Babylonian archive of about 3,000 cuneiform tablets excavated at Tell Harmal, ancient Shaduppum, east of Baghdad.