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All articles starting with S

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Stratonicaea/Hadrianopolis

Stratonicaea/Hadrianopolis was a Hellenistic and Roman city in the borderland between Mysia and Lydia in western Asia Minor, refounded by Hadrian and identified with modern Siledik, Türkiye.

Stratonice of Libya

Stratonice was a mistress of Ptolemy II Philadelphus, the second ruler of Ptolemaic Egypt, known only from an ancient list and a mausoleum at Eleusis near Alexandria.

Stratonicea (Lydia)

Stratonicea, also written Stratonikeia, was an ancient city in Lydia, western Anatolia, renamed Hadrianopolis in honor of Hadrian and known from coins of about AD 238–268.

Stratonikeia

Stratonikeia (Stratonicea, Greek Στρατoνίκεια), ancient Carian city at Eskihisar, Yatağan, Muğla, Turkey; renamed by Antiochus I for his wife Stratonike; largest known ancient gymnasium; UNESCO Tentative List 2015.

Stratonovich integral

The Stratonovich integral is a stochastic integral, introduced by R. L. Stratonovich in 1966, that evaluates the integrand at interval midpoints and obeys the ordinary chain rule of calculus.

Stratos (Greece)

Stratos (Στράτος), also Latinized Stratus, was an ancient Greek city in Acarnania, northwestern Greece, the chief town of Acarnania and first capital of the Acarnanian League.

Stratosphere

The stratosphere is the atmospheric layer from about 10–15 km to 50 km, where temperature rises with altitude and the ozone layer shields Earth from ultraviolet radiation.

Stratosphere-troposphere Processes And their Role in Climate (SPARC)

SPARC (Stratosphere-troposphere Processes And their Role in Climate) was a World Climate Research Programme core project, founded in 1992, that coordinated international research on how stratospheric processes affect climate.

Stratospheric aerosol injection

Stratospheric aerosol injection (SAI), also called stratospheric sulfate injection, is a proposed solar geoengineering method that would cool Earth by injecting reflective particles into the stratosphere.

Stratospheric cooling

Stratospheric cooling is the observed and predicted decline in the temperature of Earth's stratosphere, driven mainly by rising carbon dioxide and, in the lower stratosphere, ozone depletion.

Stratospheric Observatory for Infrared Astronomy

The Stratospheric Observatory for Infrared Astronomy (SOFIA) was a NASA and German Aerospace Center infrared telescope in a modified Boeing 747SP, operating from 2010 to 2022.

Stratovarius

Stratovarius is a Finnish power metal band formed in winter 1984, known for keyboard-driven melodic power metal with neoclassical guitar. Seventeen studio albums from Fright Night (1989) to Survive (2022); Infinite hit number one in Finland; Timo Tolkki led and wrote its hits until leaving in 2007.

Stratovolcano

A stratovolcano, also called a composite volcano, is a steep, conical volcano built from alternating lava flows, tephra, and pyroclastic flows, like Mount Fuji and Mount St. Helens.

Strattam Capital

Strattam Capital is a private equity firm founded in 2014 and based in Austin, Texas, investing $20–60 million in founder-led business-to-business software companies across North America.

Stratton (film)

Stratton is a 2017 British action thriller directed by Simon West, based on Duncan Falconer's SBS novels, starring Dominic Cooper as John Stratton (replacing Henry Cavill). Filmed in Italy and London, released September 2017, it received 0% on Rotten Tomatoes.

Stratton Oakmont

Stratton Oakmont, Inc., defunct Lake Success, New York broker-dealer (1989 to 1996) founded by Jordan Belfort; penny-stock boiler room known for IPO manipulation, NASD expulsion in 1996, SIPA liquidation, and the Wolf of Wall Street case.

Stratum

A stratum (plural strata) is a layer of rock distinguished from adjacent layers by lithologic properties. Their study, stratigraphy, traces how rock layers relate to geologic time.

Stratum corneum

Stratum corneum: the outermost epidermal layer and the skin's main permeability barrier, built of dead corneocytes in a ceramide-rich lipid matrix (brick-and-mortar model), regulating water loss, hydration, and desquamation.

Stratus

Stratus is the stage name of Patrick Stratton, an American dubstep producer and DJ based in Chicago who has released on Ultra, OWSLA, and Subcarbon since 2011.

Stratus cloud

Stratus cloud is a generally gray, low cloud layer with a fairly uniform base that may give drizzle, snow, or snow grains, sometimes forming from lifting fog.

Stratus Computer, Inc.

Stratus Computer, Inc. was a Massachusetts manufacturer of fault-tolerant computers founded in 1980, which grew to $688 million in revenue before its 1998 sale to Ascend.

Straubenzee family

Van Straubenzee family, Dutch-origin British family founded by Philip William Casimir van Straubenzee (c.1745); produced generals including Sir Charles Thomas van Straubenzee and politician Sir William van Straubenzee, MP for Wokingham.

Straumann Holding

Straumann Holding AG is a Swiss dental company, the world's largest dental implant maker with over 35% market share, founded in 1954 in Waldenburg, Switzerland.

Straumøya

Straumøya (also Straumoya) is a 29.7 km² island in Bodø Municipality, Nordland, Norway, in Saltfjorden south of Bodø, bounded by Sundstraumen and Saltstraumen, crossed by Fylkesvei 17; distinct from namesake islands in Frøya and Smøla.

Strauss–Howe generational theory

The Strauss–Howe generational theory, also known as Strauss and Howe, is a theory developed in the 1990s holding that American history cycles through four recurring turnings.

Strava

Strava: social fitness app and website for recording GPS runs, rides, and 50 activity types, with segment leaderboards (KOM/QOM). 200M+ athletes in 185+ countries; $80/yr subscription; known for leaderboard integrity efforts and privacy incidents like the 2018 heatmap.

Stravinsky (Mercurian crater)

Stravinsky is a 190-kilometer-diameter impact crater on Mercury at 50.5°N, imaged in high resolution by MESSENGER's Narrow Angle Camera on April 2, 2012, showing its southern wall.

Straw

Straw: dry stalks of cereal crops (wheat, barley, rice) left after grain harvest, seed-free unlike hay. Used for livestock feed and bedding, thatching, mulch, biofuel, and straw-bale construction; composition and burning rules covered.

Straw (film)

Straw is a 2025 Tyler Perry drama-thriller on Netflix starring Taraji P. Henson as Janiyah, a single mother who accidentally holds a bank hostage; also with Sherri Shepherd and Teyana Taylor, released June 6, 2025.

Straw Dogs (1971 film)

Straw Dogs (1971) is Sam Peckinpah's controversial thriller starring Dustin Hoffman and Susan George, adapted from Gordon Williams' The Siege of Trencher's Farm, set in Cornwall, banned from UK video from 1988 to 2002, and remade by Rod Lurie in 2011.