Cards starting with S
3,033 cards. Page 40 of 51.
Standard deviation measures how spread out values areStandard deviation gauges how tightly values hug their arithmetic mean. Take the square root of average squared gaps from that mean, and you recover a spread figure in the same un…
Standard emission metrics may obscure the unique climate impact of agricultureResearchers argue that using CO2-equivalent rates to report greenhouse gas emissions hides the distinct roles different sectors play in climate change. Because agriculture primari…
Standard error tracks uncertainty in sample estimatesStandard error is the standard deviation of a statistic's sampling distribution, often the wobble of the sample mean. It equals population sigma over square root of n, so four tim…
Standard German has no official pronunciation, relying instead on dictionaries and broadcast training.Unlike its standardized spelling, German pronunciation lacks a single official authority. Instead, it follows a de facto standard shaped by reference works and media training. Whi…
Standard German is an invented language that was never a native regional dialect.Standard German is not a natural dialect but a constructed written language that evolved over centuries. It serves as a unifying umbrella for diverse German-speaking regions, func…
Standard nuts and bolts let the Crystal Palace rise in 190 daysFor centuries each nut was made to fit one particular bolt, and no other. Lose one and you had to make a replacement by hand. Then, in 1851, the builders of London's Crystal Palac…
Standard reliability measures may underestimate the consistency of psychological dataResearchers who measure internal consistency in psychology often rely on Cronbach's alpha, a common statistical tool. However, this study highlights that alpha can be misleading b…
Standard statistical methods often fail to account for the spatial patterns in brain mapsResearchers who tested ten different statistical frameworks found that many current methods for comparing brain maps produce inaccurate results. By using controlled simulations an…
Standardized testing has been a tool of measurement for two millenniaWhile modern education debates the utility of high-stakes exams, the practice of standardized measurement is far from new. This video investigates what these tests actually measur…
Standardizing how scientists study ancient ochre pigmentsA review of ochre archaeometry by Filcoff and Zipkin examines the evolving methods used to study these ancient pigments. The authors highlight the need for a shared vocabulary and…
Standardizing the world: How z-scores measure distance from the averageHow do you compare an SAT score to a height measurement? This video explains the z-score, a fundamental statistical tool that translates diverse data points into a universal langu…
Standing at five-foot-seven, Marcus Stroman defies the traditional height requirements of elite professional pitching.In a sport dominated by towering frames, Marcus Stroman has carved out a storied career as one of the few pitchers under five-foot-ten to start in the major leagues this century. …
Standing is not a static pose but a constant, complex balancing actYou might think standing still is a passive state, but your body is actually performing a sophisticated, unconscious dance. Because humans are essentially inverted pendulums with …
Standing on a beach, the horizon is only about five kilometres awayThat distant line where sea meets sky feels infinitely far, yet for someone of average height standing at the water's edge it lies just under 5 kilometres off. Climb Mount Everest…
Stanford's 1972 Spacewar match seeded esports historyEsports are organized video-game competitions, booming after late-2000s streaming. South Korea licensed pros in 2000; East Asia led early adoption. The earliest known match was St…
Stanisław Lem kept imagining minds so alien that humans could never understand themStanisław Lem sold more than 45 million books in over 50 languages, yet his most famous novel, Solaris, is about failure: scientists orbiting a living ocean they cannot comprehend…
Stanisław Leśniewski: The Polish logician who tried to rewrite the foundations of mathematics.Born in Russia and raised in Siberia, Stanisław Leśniewski became a central figure in the Warsaw School of Logic. He spent his career attempting to resolve the paradoxes that thre…
Stanisław Ulam filled a café notebook with problems, then invented the Monte Carlo methodIn 1930s Lwów, mathematicians argued for hours at the Scottish Café and wrote their unsolved puzzles in a thick notebook supplied by Stefan Banach's wife. Stanisław Ulam contribut…
Stanley Cavell bridged the gap between Hollywood cinema and rigorous academic philosophy.Before Stanley Cavell, serious philosophers rarely treated movies, Shakespeare, or Thoreau as subjects for deep inquiry. By blending analytic rigor with personal, intimate prose, …
Stanley Kramer’s 1963 epic comedy was a massive, star-studded gamble on the absurdTo lure audiences away from television, director Stanley Kramer assembled an unprecedented cast of comedy legends for a sprawling, high-budget chase film. The result was a technic…
Stanley Kubrick's final masterpiece redefined the war film through a brutal, two-part structural lens.Full Metal Jacket is a study in dehumanization, split between the claustrophobic intensity of Parris Island boot camp and the chaotic reality of the Vietnam War. By focusing on th…
Stanley Kubrick's only Oscar was for visual effects, not directingOne of cinema's most revered directors never won an Academy Award for directing. Stanley Kubrick's single Oscar came for the special effects of 2001: A Space Odyssey, whose scient…
Stanley Tucci's breakthrough as a filmmaker was a movie about risottoBefore he fronted a food show, Stanley Tucci co-wrote and co-directed Big Night, a 1996 film about two Italian brothers trying to save their restaurant. His mother wrote a cookboo…
Staphylococcus aureus relies on an unusually large arsenal of toxinsA review of research on Staphylococcus aureus describes how this common bacterium causes everything from mild skin infections to fatal pneumonia and sepsis using an unusually larg…
Staphylococcus is named after the grape bunches its cells formUnder a microscope, staphylococci pile up in irregular clusters that reminded early scientists of grapes, and the name joins the Greek words for a bunch of grapes and a berry. Mos…
Star anise has nearly pushed true anise out of Western kitchensThe liquorice note in ouzo, sambuca and pastis comes from anethole, a compound shared by Mediterranean anise and a Chinese spice from a completely unrelated plant. Star anise is c…
Star Citizen has raised over one billion dollars but remains in early access development.Announced in 2012 with a 2014 launch target, the ambitious space simulator Star Citizen has become one of the most expensive entertainment projects ever produced. Despite raising …
Star Conflict update 0.8 forces a complete overhaul of every player's ship loadoutScott Manley breaks down the significant changes introduced in Star Conflict update 0.8. This patch fundamentally alters ship classes, roles, and tier placements, requiring player…
Star Fox Zero attempted to reinvent a classic, but its controls proved deeply divisive.Released in 2016 for the Wii U, Star Fox Zero was a bold reimagining of the beloved Star Fox 64. While it featured impressive level design and boss battles, the game became infamo…
Star magnitudes run backwards because they began as a ranking of sizeIn astronomy, smaller numbers mean brighter stars, and the brightest go negative: Sirius sits at minus 1.46, the Sun at minus 27. The oddity dates back two thousand years, to when…
Star Sports changed owners repeatedly while cricket stayed its crown jewelFew television brands have passed through as many hands as Star Sports. It began in 1991 borrowing an American channel name, merged with its fiercest rival, was bought out by Rupe…
Star Wars exists because George Lucas could not buy the rights to Flash GordonIn early 1971 George Lucas tried to acquire the film rights to Flash Gordon, the space serial he had loved as a boy. The owners were courting Federico Fellini instead. So Lucas wr…
Star-shaped brain cells once dismissed as packing turn out to talk backAstrocytes, named for their star shape, were long seen as scaffolding for neurons. Since the mid-1990s researchers have watched them pass calcium waves across long distances and r…
Starbuck Island: A desolate Pacific coral outpost that once claimed many passing shipsRemote, uninhabited, and devoid of freshwater, this low-lying Kiribati atoll is a graveyard for 19th-century vessels. Once a hub for phosphate mining, the island is now a protecte…
Starbucks spent its first decade refusing to sell a cup of coffeeWhen Starbucks opened near Seattle's Pike Place Market in 1971, it sold beans and brewing gear, nothing you could drink. Its founders wanted to stay that way. It took a marketing …
Starburst galaxies make stars so fast they burn through their fuel in a cosmic blinkThe Milky Way turns roughly three Suns' worth of gas into new stars each year. A starburst galaxy can manage a hundred or more. At that pace its whole gas supply is gone in around…
Starch and cellulose are both glucose, joined by a bond that changes everythingPotatoes and paper are made of the same sugar. Starch links its glucose one way and coils into something we digest easily; cellulose links it the other way into straight, stiff ro…
Starch stiffened Elizabethan ruffs long before it thickened modern gravyThe word starch comes from a Germanic root meaning strong or stiff, and German Stärke still means both strength and starch. For centuries its big uses were stiffening linen and si…
Starfire is a cosmic princess whose alien biology turns solar radiation into pure energyCreated as a space-faring warrior, Starfire evolved from a comic book debutante into a multifaceted icon of the Teen Titans. Beyond her signature starbolts and supersonic flight, …
Starfish are not just slow gliders; they can actually bounce and gallop across surfaces.While we often picture starfish as slow-moving creatures, marine biologists recently discovered they can exhibit a surprising, high-speed gait. By using their hundreds of independ…
Starfish possess an evolutionary history spanning nearly half a billion years of lifeThe familiar starfish has a surprisingly deep evolutionary past. This video explores the origins of their unique body plan, illustrating how even common modern animals carry a bio…
Starfish thorns helped launch modern immunologyIlya Mechnikov stuck tiny thorns into starfish larvae and watched unusual cells swarm them. That observation of phagocytosis, shared with Paul Ehrlich in the 1908 Nobel Prize, hel…
Starfish walk on glue and hide a hydraulic city insideAbout 1,900 asteroid species carpet seabeds as star-shaped echinoderms—usually five arms, sometimes dozens in Antarctic Labidiaster. Tube feet run on a water-vascular system that …
Stargazer: The 1968 satellite that paved the way for modern space-based astronomyBefore Hubble or Kepler, there was Stargazer. Launched in 1968, this 4,436-pound satellite was NASA’s first successful cosmic explorer. By mastering the ability to lock onto a sin…
Staring at the sun cost Gustav Fechner his eyes and gave psychology numbersIn 1839 a Leipzig physics professor damaged his eyes by gazing at the Sun through coloured glass to study afterimages. Forced to resign, Gustav Fechner turned to a question Kant h…
Starlight tours: The chilling history of police abandoning Indigenous people in the Canadian winterFor decades, Indigenous people in Saskatoon were allegedly driven to the city's outskirts by police and abandoned in sub-zero temperatures. These incidents, known as starlight tou…
Starling flocks can help farms and wreck themSturnus vulgaris, the common or European starling, breeds across temperate Europe and the wider Palearctic with about twelve subspecies. Huge flocks eat insect pests yet also raid…
Starling murmurations rewrite the sky with borrowed soundsSturnidae packs 128 species in 36 genera of glossy, often iridescent passerines famous for mimicry and swarming murmurations. Strong fliers of open country, they probe for grubs, …
Stars are born in cold clouds whose main gas is almost invisibleMolecular hydrogen fills the dark clouds where stars form, yet its symmetrical molecules barely emit anything a telescope can catch. Astronomers found the clouds by chasing a stan…
Stars are born inside freezing clouds that can outweigh the Sun millions of timesThe birthplaces of stars sit at about ten degrees above absolute zero. Giant clouds of molecular hydrogen, some a hundred light-years across and holding up to six million solar ma…
Stars are constantly shedding their mass into space through powerful, invisible stellar windsA stellar wind is a continuous flow of gas or plasma ejected from a star's upper atmosphere. While the Sun's own wind is relatively modest, other stars blast material into space a…
Stars are not fixed in the sky, but drift across it over centuriesConstellations like Ursa Major look identical to how they appeared centuries ago, but this is an illusion of scale. Every star possesses an independent, measurable proper motion. …
Stars are singing, and astronomers are finally learning how to listen to themSpace is a vacuum, so sound cannot travel through it. Yet, stars create their own music by expanding and contracting, causing rhythmic brightness variations. By measuring these ti…
Stars are the cosmic furnaces that forge the periodic table from simple hydrogen gas.Every atom in your body was once manufactured inside a star. Through a complex sequence of nuclear reactions, stars transform light elements into heavy ones, eventually scattering…
Stars do not sit still; they wobble in response to their orbiting planetary companions.We often imagine the Sun as a stationary anchor for our planets, but in reality, both orbit a shared center of mass. This gravitational dance causes stars to move in small, period…
Stars run internal dynamos that flip their magnetic poles on a scheduleEvery 11 years the Sun's main magnetic field turns upside down, so a full cycle takes about 22 years. The flip is the work of a dynamo inside the star, where churning, electricall…
Stars run internal dynamos that flip their magnetic poles on a scheduleThe Sun's main field reverses every 11 years, period about 22; sunspot activity maximum near reversal, with plasma ejection
Starship becomes the heaviest object ever sent into space by human handsScott Manley reviews the most significant spaceflight developments from the past two weeks. From a record-breaking launch to shifts in satellite technology and propulsion manufact…
Starship Flight 9: A Milestone for Reusability Marred by Technical GlitchesScott Manley breaks down the recent Starship Flight 9 mission, which saw the Superheavy booster achieve a successful propulsive landing while the upper stage faced critical failur…
Starship, Falcon Heavy, and Astra: A Busy Fortnight in Space ExplorationScott Manley reviews the latest developments in aerospace, covering the recent Starship flight, a record-breaking Falcon Heavy mission, the loss of the Hakuto-R lunar lander, and …
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