All articles starting with S
44,216 articles
Skew deviation
Skew deviation, also called ocular tilt reaction component, is an acquired vertical eye misalignment from disrupted utriculo-ocular vestibular pathways, usually brainstem or cerebellar stroke or demyelination, mimicking fourth nerve palsy.
Skew lines
Skew lines are two straight lines in three-dimensional space that do not intersect and are not parallel; a standard example is two nonparallel edges of a cube.
Skew normal distribution
The skew normal distribution, or skewed gaussian, is a family of continuous probability distributions introduced by Adelchi Azzalini in 1985 that extends the normal distribution with an asymmetry shape parameter.
Skew polynomial ring
A skew polynomial ring, also called an Ore extension, is a noncommutative polynomial ring in which the variable does not commute with coefficients, introduced by Øystein Ore in 1933.
Skew-symmetric matrix
A skew-symmetric matrix, also known as an antisymmetric matrix, is a square matrix equal to the negative of its transpose, so its diagonal entries are zero.
Skewness
Skewness is a measure of the asymmetry of a probability distribution or data set, most commonly computed as the standardized third central moment, with zero indicating symmetry.
SKF
SKF, or Svenska Kullagerfabriken, is a Swedish manufacturer of rolling bearings and lubrication systems, founded in Gothenburg in 1907 by Sven Wingquist and today one of the largest bearing manufacturers in the world.
SKF-38393
SKF-38393 is a synthetic benzazepine compound acting as a selective partial agonist at dopamine D1-like receptors, and probably the most widely used D1 agonist in laboratory research.
Skhidno-Poltavske Gas Field
Skhidno-Poltavske (Східно-Полтавське), the "Eastern Poltava" field, is an onshore gas field in Poltava Oblast, Ukraine, operated by Ukrgasvydobuvannya and producing over 2 million m³ per day.
Skhirate-Temara
Skhirate-Témara (الصخيرات - تمارة) is a Moroccan prefecture in the Rabat-Salé-Kénitra region, capital Témara, just south of Rabat. The 2024 census counted 783,475 residents, about 94 percent urban, in communes including Skhirate, Ain El Aouda, and Harhoura.
Ski
Ski: a long narrow runner worn under each boot for travel over snow. Origins in 5000 BC rock art, bog skis of 2500 BC, laminated wood from 1935, fiberglass from 1974; basis of cross-country, alpine, and touring sports.
Ski Aggu
Ski Aggu (August Jean Diederich, born 1997, Berlin) is a German party rapper with ski goggles and Vokuhila; hits "Party Sahne" and "Friesenjung", two German number-one albums, rap over techno beats.
Ski areas and resorts in Central Europe
Ski areas and resorts in Central Europe span high-altitude Alpine resorts and low- and mid-altitude groomed-hill venues, which rely on artificial snowmaking as winters warm.
Ski binding
Ski binding: the device connecting ski boot to ski. Main types are alpine (fixed releasable heel), alpine touring (switchable heel), and telemark (free heel); governed by ISO 9462 and set to skier-specific release values.
Ski boot
Ski boot: rigid boot connecting foot to ski binding; alpine soles per ISO 5355, GripWalk per ISO 23223, touring per ISO 9523; Mondopoint sizing, last width 97-106 mm, flex index ratings; plastic shells date to Bob Lange's 1962 boots.
Ski Club of Great Britain
The Ski Club of Great Britain is a UK membership organization for snow-sports enthusiasts, founded in London in 1903, offering advice, reps, and ski holidays.
Ski cross World Cup
The ski cross World Cup is the annual FIS circuit of ski cross races with its own season standings within the FIS Freestyle Ski World Cup.
Ski Dubai
Ski Dubai, at Mall of the Emirates on Sheikh Zayed Road, is the Middle East's first indoor ski resort, opened November 1, 2005 by Majid Al Futtaim: 22,500 m² of snow, five runs, a 400 m slope, penguins, and World Ski Awards wins.
Ski geometry
Ski geometry covers sidecut, turn radius, camber, and rocker that define an alpine ski's shape. Sidecut dates to Sondre Norheim around 1856; Elan's 1993 parabolic SCX revolutionized turning.
Ski Hall
Ski Hall is the indoor ski hall in Dubai's Mall of the Emirates housing Ski Dubai; opened November 2005, first indoor ski venue in the Middle East, 22,500 sqm of snow, 5 slopes, 3 lifts, −1 to 2 °C year-round; a namesake attraction exists in Erbil, Iraq.
Ski helmet
A ski helmet is protective headgear worn for alpine skiing and snowboarding that absorbs impact energy to reduce head-injury risk, certified to ASTM F2040 and CE EN 1077.
Ski Into Love (嘘,国王在冬眠)
Ski Into Love (嘘,国王在冬眠, Shh, the King Is Hibernating) is a 2025 Chinese romance-sports drama adapted from Qing Mei's novel, starring Esther Yu and Lin Yi as a cartoonist and a retired snowboarder, 23 episodes on Youku and Netflix.
Ski jumping
Ski jumping: Olympic winter sport since 1924 where athletes fly off jumps for distance and style points; women debuted at Sochi 2014; FIS governs scoring with wind and gate compensation since 2009.
Ski jumping accidents and fatal falls at hills
Ski jumping accidents and fatal falls at hills documents notable crashes and structural failures at named venues, and the closures, rebuilds, and upgrades that followed them.
Ski jumping at the 1988 Winter Olympics
Ski jumping at the 1988 Calgary Winter Olympics: three men's events at Canada Olympic Park, 14–24 February 1988. Matti Nykänen won all three golds; Eddie the Eagle Edwards finished last in both individual events.
Ski jumping at the 2018 Winter Olympics
Ski jumping at the 2018 PyeongChang Winter Olympics: four events at Alpensia Ski Jumping Centre, 8–19 February 2018. Norway led with 2 golds (team, Maren Lundby); Andreas Wellinger and Kamil Stoch won individual golds.
Ski jumping at the 2022 Winter Olympics
Ski jumping at the 2022 Beijing Winter Olympics: five events at Zhangjiakou, 5–14 February 2022; mixed team debut won by Slovenia; Kobayashi, Lindvik, and Bogataj individual champions; five women disqualified over jumpsuits.
Ski jumping at the European Games
Ski jumping at the European Games is a summer competition first held at the 2023 European Games in Zakopane, Poland, where Austria won three of five gold medals.
Ski jumping at the Winter Olympics
Ski jumping at the Winter Olympics, a Nordic sport on the program since Chamonix 1924, scored on distance and style. Six events at Milano Cortina 2026, including women's large hill and men's super team; Norway leads with 36 medals.
Ski jumping at the Winter Youth Olympics
Ski jumping at the Winter Youth Olympics: normal hill individual events for women and men plus a mixed team event, held since Innsbruck 2012; Gangwon 2024 winners Taja Bodlaj and Ilya Mizernykh.