All articles A–Z
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Stillfried
Stillfried an der March: Late Bronze Age Urnfield hillfort in Lower Austria, 23 ha rampart enclosure on the Amber Road, known for grain storage pits and deviant human and animal depositions, with Roman and medieval occupation.
Stilling basin
A stilling basin is a concrete pool at the toe of a spillway that forces a hydraulic jump to slow fast release flow, protecting the riverbed from scour.
Stillmatic
Stillmatic is Nas's fifth studio album, released December 18, 2001 on Ill Will/Columbia, known as his comeback after Illmatic and for the Jay-Z diss track 'Ether.'
Stillwater
Stillwater is an Apple TV+ animated children's series from Gaumont and Scholastic Entertainment, based on Jon J Muth's Zen Shorts books, following a wise panda who teaches siblings Karl, Addy, and Michael mindfulness; premiered December 4, 2020, five seasons, Peabody and Emmy winner.
Stillwater (film)
Stillwater (2021) is a Tom McCarthy drama-thriller starring Matt Damon as an Oklahoma oil-rig worker seeking to free his daughter, imprisoned in Marseille for murder; loosely inspired by the Amanda Knox case, released by Focus Features July 30, 2021.
Stillwater Complex
The Stillwater Complex is a layered igneous intrusion, about 2.7 billion years old, exposed along the northern Beartooth Mountains in south-central Montana and hosting the J-M Reef.
Stillwater, Oklahoma
Stillwater, Oklahoma: Payne County seat and home of Oklahoma State University, settled in the 1889 Land Run; about 50,000 residents, council-manager government, Stillwater Regional Airport.
Stilt house
A stilt house, also called a pile dwelling or palafito, is a house raised on posts or piles above ground or water to cope with flooding.
Stilton cheese
Stilton: protected English blue or white cheese, PDO since 1996, made only in Leicestershire, Derbyshire, and Nottinghamshire from pasteurised milk; named for the Cambridgeshire village where it was sold; four blue Stilton dairies remain after 2024 closures.
Stilts
Stilts: poles strapped to the legs to elevate a walker, used for drywall, painting, and ceiling work and in circus, festival, and ritual performance. OSHA 1926.452(y) rules, Ontario 76 cm limit, hip-dominant balance demands, Maya and Rio Carnival traditions.
Stimming
Stimming, short for self-stimulatory behavior, means repeated movements or sounds such as hand flapping, rocking, or hair twirling used for self-regulation. Common in autism and ADHD but practiced by most people; usually harmless, with support needed mainly for self-injurious stims.
Stimpmeter
Stimpmeter: USGA device, based on Edward Stimpson's 1930s design, that measures putting green speed as the average distance in feet a ball rolls after release; 8 slow, 12 fast.
Stimulant
Stimulants, also known as psychostimulants, are drugs that boost brain chemicals to increase alertness, attention, and energy, ranging from caffeine to prescription drugs that treat ADHD and narcolepsy.
Stimulant psychosis
Stimulant psychosis: drug-induced delusions and hallucinations from amphetamine, methamphetamine, cocaine, or prescription stimulants; affects 36.5% of methamphetamine users versus 0.2% of therapeutic users; usually transient, 19–33% transition to primary psychosis.
Stimulated emission
Stimulated emission of radiation is the process in which an incoming photon of matching energy makes an excited atom release a second identical photon, amplifying light.
Stimulated emission depletion
Stimulated emission depletion (STED) is a fluorescence microscopy technique that uses a donut-shaped depletion beam to shrink resolution below the diffraction limit, reaching tens of nanometers.
Stimulated Raman adiabatic passage
Stimulated Raman adiabatic passage (STIRAP) is a quantum-optical technique, introduced in 1990, that transfers population between two quantum states via an intermediate state that is never populated, avoiding spontaneous-emission loss.
Stimulated Raman scattering
Stimulated Raman scattering (SRS) is a nonlinear optical imaging technique that maps chemical bonds in cells and tissues using two synchronized laser beams, without labels.
Stimulated Raman scattering histology
Stimulated Raman scattering histology (SRH) is a label-free optical imaging method producing histology-like images of unprocessed surgical tissue, developed for brain tumor diagnosis in the operating room.
Stimulated Raman scattering microscopy
Stimulated Raman scattering microscopy (SRS microscopy) is a label-free optical imaging technique in which two laser beams coherently drive molecular vibrations to map a sample's chemistry, introduced for biology in 2008.
Stimulated Raman spectroscopy
Stimulated Raman spectroscopy, also called stimulated Raman scattering spectroscopy, is a nonlinear optical technique that drives molecular vibrations with two synchronized laser beams, enabling fast, sensitive, label-free chemical imaging.
Stimulated recall
Stimulated recall (SR) is a qualitative research method in which participants review a recording of their past behavior and are interviewed about their thoughts at the time.
Stimuli-responsive hydrogel
A stimuli-responsive hydrogel is a water-swollen polymer network that predictably changes swelling, shape, or chemical properties when triggered by stimuli like temperature, pH, or light.
Stimuli-responsive nanoparticles
Stimuli-responsive nanoparticles are drug-delivery particles that release cargo in response to triggers like pH, redox state, enzymes, light, ultrasound, or heat, aiming to boost efficacy and cut toxicity.
Stimulus (physiology)
Stimulus (physiology): a detectable environmental or internal change (light, sound, chemical, temperature, pressure) that activates sensory receptors. Key facts: transduction into graded receptor potentials, coding of modality, location, intensity, duration, and receptor adaptation.
Stimulus control
Stimulus control is a behavioral technique in which environmental cues are arranged so a desired behavior occurs reliably, central to behavior therapy, applied behavior analysis, and insomnia treatment.
Stina Blackstenius
Stina Blackstenius (Emma Stina Blackstenius), Swedish forward born 1996 in Vadstena; Arsenal striker since 2022, 64 goals in 152 games, 2025 Champions League final winner; Sweden captain with Olympic silver and World Cup bronze medals.
Stina Ehrensvärd
Stina Ehrensvärd is a Swedish entrepreneur who co-founded Yubico in Stockholm in 2007, co-invented the YubiKey, and led the company as chief executive for sixteen years.
Stina Nilsson
Stina Nilsson (born 1993, Malung, Sweden) is a Swedish cross-country skier, 2018 Olympic sprint champion, who switched to biathlon 2020–2024 and then to long-distance Ski Classics with Team Ragde Charge, winning Vasaloppet 2025.
Stina Nordenstam
Stina Nordenstam, Swedish singer-songwriter born 1969 in Stockholm; ethereal whisper-fronted albums from Memories of a Color (1991) to The World Is Saved (2004); Sonic's best Swedish album; Hall of Fame 2014.