Cards starting with S
3,033 cards. Page 27 of 51.
Slave rebellions were not just desperate acts, but catalysts for global political changeFor centuries, enslaved people across the Americas and beyond fought back against their bondage. While often dismissed as spontaneous or minor, these uprisings frequently reshaped…
Slavia Prague: the literary cycling club that became a Czech football powerMedical students in Vinohrady founded Slavia on 2 November 1892 as a society for literature and cycling. Football arrived in 1896, along with a goalless draw against Sparta that s…
Slavs named themselves the people of the word, and Germans the mute onesThe name Slav probably grew from slovo, word: the Slavs were those who understood one another. Their term for Germans meant roughly the silent or mumbling people. That old linguis…
Slavutych: The Last City Built by the Soviet Union for Chernobyl SurvivorsConstructed in 1986 to house personnel evacuated from Pripyat, Slavutych stands as a unique architectural experiment. Designed as a 21st-century city by architects from eight Sovi…
Sleep apnea is more than just snoring; it is a serious disruption of breathing.Do you wake up feeling exhausted or suffer from persistent morning headaches? You might be experiencing sleep apnea, a condition where your breathing repeatedly stops and starts t…
Sleep apnea often overlooked in people with heart diseaseA review by the American Heart Association found that obstructive sleep apnea, a condition where breathing repeatedly stops during sleep, affects between 40% and 80% of patients w…
Sleep deprivation consistently impairs emotional regulation and increases feelings of anxietyA systematic review and meta-analysis of experimental research involving 5,717 participants found that sleep loss consistently impacts human emotional functioning. The data showed…
Sleep expands brain space to help clear metabolic wasteResearchers studying mice found that sleep significantly increases the space between brain cells. This expansion allows cerebrospinal fluid to flow more freely, which appears to h…
Sleep handed their label one hour-long song, and the band fell apartSigned to London Records after a breakthrough second album, the San Jose trio Sleep delivered a follow-up that was one track running over an hour. Executives called it unmarketabl…
Sleep health requires urgent inclusion in global public health agendasResearchers argue that sleep health is an essential pillar of wellbeing, yet it is rarely prioritized in national public health agendas, especially in developing countries. To add…
Sleep is a universal biological necessity, even for creatures without a brain.While we often view sleep as a luxury or a simple rest period, it is a fundamental, ancient biological requirement. From jellyfish and simple polyps to complex mammals, almost eve…
Sleep is nature’s most sophisticated effort at biological immortalitySleep scientist Matt Walker explores why slumber is not a luxury, but a vital life-support system. This talk reveals how sleep actively repairs your body and brain while highlight…
Sleep may have begun hundreds of millions of years ago as brain housekeepingSleep is found so widely across animals that it probably dates back hundreds of millions of years, and one leading idea is that it began as a way for the brain to flush out waste,…
Sleep patterns shift predictably as humans age from childhood to old ageA meta-analysis of 65 studies involving individuals aged 5 to 102 years found that sleep architecture changes significantly across the human lifespan. The researchers observed tha…
Sleeping in space is less about comfort and more about survivalImagine trying to sleep in a closet-sized room where there is no up or down. On the International Space Station, astronauts must navigate weightlessness, 16 sunrises every day, an…
Sleeping sickness works by hijacking the brain's internal clockA tsetse fly bite can deliver a single-celled parasite that eventually slips past the blood-brain barrier. Once inside, it scrambles the genes that keep the body's daily rhythm, f…
Slice a cone and you get ellipses, parabolas, or hyperbolasA conic section is the curve where a flat plane slices a double cone. Tilt the plane one way and you get a closed ellipse, with the circle as a special case; set it parallel to th…
Slide rules pushed science to normalize powers of tenScientific notation writes awkward magnitudes as m times ten to the n, usually with m's absolute value at least one and under ten. Slide-rule culture needed that standard form; co…
Sliding layers of boron nitride can create a new type of electric polarizationResearchers studying layered crystals have found that a stable electric polarization can emerge at the interface of two hexagonal boron nitride flakes. By stacking these naturally…
Sligo Rovers: The Irish football club owned by its own community since 1928Based in the west of Ireland, Sligo Rovers is a unique co-operative venture owned by its supporters. Since its formation in 1928, the club has navigated financial crises, relegati…
Sligo: The Ancient Irish Town Named After Its Abundance of ShellsSligo, a coastal seaport in western Ireland, derives its name from the Irish Sligeach, meaning abounding in shells. This moniker reflects a history defined by marine resources, fr…
Slim learned compound interest from a bond at age elevenCarlos Slim Helú, born 28 January 1940 in Mexico City to Maronite parents of Lebanese origin, built a conglomerate across telecom, industry, retail, and more. Rankings have repeat…
Slim Shady made a Missouri-born kid hip-hop's top sellerMarshall Mathers, born 1972, grinding through Infinite and the Slim Shady EP before Aftermath fame. The Marshall Mathers LP and The Eminem Show each topped a million first-week sa…
Slime molds solve traffic problems without a brain and weigh up to 20 kilogramsA slime mold has no brain, yet species like Physarum polycephalum have been used to model traffic networks, and the group shows behaviours usually linked to animals that think. On…
Slingers gave these Mediterranean islands their classical nameSpain’s Balearic Islands sit in the western Mediterranean as an autonomous community whose capital is Palma de Mallorca. Western Pityuses (Ibiza, Formentera) and eastern Gymnesian…
Slipknot took shape during night shifts at an Iowa gas stationMuch of Slipknot's early planning happened late at night at a Sinclair gas station in Des Moines, where drummer Joey Jordison worked the graveyard shift. There, in late 1995, he p…
Slipknot's seventh studio album marks a heavy, transitional chapter for the bandReleased in late 2022, The End, So Far represents a sonic evolution for Slipknot. It is their shortest studio effort to date and serves as a final chapter for several key members …
Slipknot's sixth studio album redefined their sound through years of deliberate, experimental songwritingReleased in 2019, We Are Not Your Kind marked a pivotal shift for the heavy metal band. By stepping away from rigid production timelines, the group crafted an ambitious, experimen…
Sloths grow algae in their fur, and moths live there too.A sloth moves so little that its shaggy coat becomes a tiny ecosystem. Green algae grow in its hair, camouflaging it in the canopy, and moths live in the fur. About once a week th…
Sloths were once masters of the sea and underground, not just the trees.Modern sloths are iconic tree-dwellers, but their evolutionary history is far more diverse. This video explores how these animals once occupied vastly different ecological niches,…
Slovak is a West Slavic language defined by its unique rhythmic lawSpoken by roughly five million people, Slovak is a West Slavic language closely related to Czech. While it shares deep roots with its neighbors, it maintains a distinct identity t…
Slovak Paradise is a rugged mountain range defined by vertical ladders and hidden canyonsTucked away in the Western Carpathians, this eastern Slovakian landscape is a karst plateau transformed by ancient rivers into a labyrinth of deep gorges and waterfalls. Hikers na…
Slovakia's demographic landscape is defined by rural roots and a shifting ethnic mosaicSlovakia presents a complex demographic picture where traditional rural life persists alongside modern economic structures. With a fertility rate of 1.45 children per woman and a …
Slovakia's long road to sovereignty: from the Highlands of Hungary to independent nationhoodFor centuries, the ancestors of modern Slovaks lived as subjects of the Hungarian crown, defined by their geography rather than a distinct national identity. It took the collapse …
Slovakia's path to sovereignty spans from ancient hill forts to a modern European state.Long before its 1993 independence, the territory of Slovakia served as a crossroads for Celts, Germanic tribes, and Slavs. From the rise of the Great Moravian Empire to centuries …
Slovan Liberec was the first club outside Prague to win the Czech titleFor the first nine seasons of the independent Czech league, the champions always came from Prague. In 2002 a club from the northern city of Liberec broke the pattern. Slovan Liber…
Slovene is a linguistic outlier that preserves the ancient dual grammatical numberSlovene is a South Slavic language with a unique grammatical feature: the dual number. Used alongside singular and plural, it allows speakers to precisely describe pairs of object…
Slovenia's first female president: A career built on privacy, law, and public transparencyNataša Pirc Musar is the first woman to lead Slovenia, rising to the presidency after a distinguished career as a lawyer and information advocate. Her path from television journal…
Slovenia's oldest city was once a Roman powerhouse where emperors were crowned and deposed.Perched on the Drava River, Ptuj has survived Roman legions, Hun invasions, and the shifting borders of empires. From its origins as a strategic military fort to its modern role a…
Slow lithium movement limits how fast electric vehicle batteries can chargeA review of lithium-ion battery materials found that the speed of charging is primarily restricted by how quickly lithium can move through the battery's components. Researchers id…
Slowing down to a crawl: The precision of comet navigationTo study a comet, you must first master the art of deceleration. This video captures Rosetta's critical orbital maneuvers as it prepares to transition from high-speed travel to a …
Sly and the Family Stone broke rock's colour and gender lines at onceWhen two brothers merged their bands in San Francisco in November 1966, the result became the first major American rock group whose lineup mixed Black and white players, men and w…
SM Entertainment: how a failed hip hop bet built the K-pop idol factoryIn 1989 Lee Soo-man opened a small studio in Seoul's Apgujeong and signed a hip hop singer whose career collapsed after a drug arrest. Burned, Lee pivoted to carefully trained ido…
Small actions can bridge the gap between different peopleInclusion strategist Amber Cabral explores how to foster genuine connection in diverse environments. This talk breaks down three practical steps to support those around you, demon…
Small creatures with mighty survival skills and incredible resilienceExplore the dramatic lives of tiny insects as they demonstrate remarkable survival instincts, from returning from the brink of death to employing clever defenses against predators.
Small creatures, mighty survival: witness the extraordinary world of insectsExperience an hour of rare and dramatic footage featuring the incredible lives of insects. This collection showcases tiny creatures performing seemingly impossible feats, from sur…
Small gardens can thrive with these versatile and bird-friendly Australian native shrubsLimited space does not mean you cannot enjoy native plants. This video explores compact Australian shrubs that adapt well to various soils while supporting local biodiversity, inc…
Small genetic shifts, massive biological consequencesWhile humans and chimpanzees appear vastly different, our DNA is remarkably similar. This video explores how minute variations in our genetic code can lead to the profound differe…
Small molecule catalysts enable precise control over alkene geometric isomerizationResearchers have identified how small molecule photocatalysts can drive the conversion of E-alkenes to Z-alkenes. By using energy transfer catalysis, scientists can bypass the lim…
Small molecules hold the secrets to our most complex diseasesWhile we often focus on genes, the metabolites in our bodies—like glucose and cholesterol—drive many illnesses. This video explores how AI can decode these mysterious molecules to…
Small mountainous rivers contribute more to ocean sediment than previously thoughtResearchers who analyzed data from 280 rivers found that sediment discharge to the ocean is primarily determined by a river basin's size and its maximum elevation. The study revea…
Small planets are remarkably abundant around low-mass M dwarf starsResearchers using the CARMENES survey found that low-mass M dwarf stars host a high frequency of small planets. By analyzing 71 stars with extensive observations, the team discove…
Small sea-level rises could double the frequency of coastal flooding in the TropicsResearchers using global models found that even modest sea-level rises can rapidly increase the frequency of coastal flooding. By combining sea-level projections with models for w…
Small Weekly Home Maintenance Tasks That Prevent Expensive Future RepairsA few minutes of consistent upkeep can save your home from major damage and insurance complications. This episode provides a practical, year-round checklist for homeowners and off…
Small weight losses can trigger significant improvements in long-term healthObesity is often framed as an insurmountable public health crisis, but the path to reversal is more nuanced than just the number on a scale. Understanding the interplay between ge…
Small wireless sensors can estimate their location using simple signal connectivityResearchers have evaluated a low-cost method for tiny wireless sensor nodes to determine their position in outdoor environments without GPS. By using periodic beacon signals from …
Small, terrestrial, and extinct: the mysterious crocodilians that once roamed Pacific islands.For millions of years, a genus of small, land-dwelling crocodiles thrived across Australia and the Pacific. Known as Mekosuchus, these creatures featured blunt snouts and speciali…
Smaller planets tend to orbit further from their host starsResearchers analyzing data from the Kepler mission found that the orbital distances of planets are closely linked to their physical sizes. By studying 1,235 planet candidates orbi…
Smallpox is the only human disease ever eradicatedVariola virus killed with fever, mouth ulcers, and dented fluid-filled blisters that scarred survivors—and blinded some. The last natural case was diagnosed in October 1977; the W…
Smallville: The Fictional Kansas Town That Wandered Across the American MapSmallville is the quintessential American hometown, yet its precise location has remained a moving target for decades. Originally an unnamed setting in early comics, this iconic b…
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