Intellect PlusCards starting with C
9,109 cards. Page 151 of 152.
Cross products make a third arrow from two in spaceIn oriented three-dimensional space, two independent vectors determine a third perpendicular to both, with length equal to the parallelogram they span. Swap the inputs and the res…
Cross-site scripting: how attackers turn your trusted browser against youCross-site scripting (XSS) occurs when malicious scripts are injected into otherwise trusted web pages. By exploiting vulnerabilities in how sites handle user data, attackers can …
CrossFit: A Global Fitness Phenomenon Built on High-Intensity Functional Movements and Community CompetitionBorn from a teenager's experiment with gymnastics and weightlifting, CrossFit has grown into a worldwide fitness empire. By prioritizing constantly varied, high-intensity function…
Crossing the Atlantic shrank from five weeks to eight days, and immigration surgedIn the eighteenth century an Atlantic crossing could take up to five weeks. By the early twentieth it took about eight days. As the time and cost of moving fell, so did the opport…
Crossovers went from niche to nearly half the American car marketIn 2000 crossovers made up under 4% of the US market; by 2018 nearly 40%. These car-based SUVs are built on a unibody platform rather than a truck frame, trading off-road toughnes…
Crowdfunding is not just modern tech; it is a centuries-old method of collective trust.While we associate crowdfunding with sleek apps and viral campaigns, the practice of pooling small contributions to fund ambitious projects has deep historical roots. From financi…
Crowdmapping after the 2010 Haiti earthquake gave humanitarianism a digital branchWhen volunteers plotted reports on online maps after the 2010 Haiti earthquake, Patrick Meier called it digital humanitarianism. The idea of helping strangers in distant emergenci…
Crowds chanted 'Rocky sucks' until Dwayne Johnson started insulting them backWhen Dwayne Johnson debuted in the WWF in 1996 as Rocky Maivia, a smiling third-generation hero, fans hated him so much they chanted for his downfall. After a knee injury he came …
Crown rule replaced Company rule after the 1857 rebellionThe British Raj was Crown government on the Indian subcontinent from 1858 to 1947, begun when East India Company authority passed to Queen Victoria after the 1857 rebellion—she be…
Crowned as king at age eleven, Mary of Hungary faced a lifetime of betrayal.Ascending the throne as a child monarch in 1382, Mary of Hungary navigated a volatile landscape of dynastic ambition and violent rebellion. Despite being crowned king, her authori…
Crowned before birth, Shapur II ruled the Sasanian Empire for seventy years of expansion.Legend claims Shapur II was crowned while still in his mother's womb, a prophecy-driven start to a seventy-year reign. As the Sasanian Empire's longest-serving monarch, he transfo…
Crows match many primates on a brain-to-body scoreThe crow-and-raven genus Corvus holds about forty-six species on every continent except South America and Antarctica. Lab work since 2002 shows some not only wield tools but fashi…
Crows remember your face, and they tell their friends.Researchers at the University of Washington wore a distinctive mask while trapping and ringing crows. For years afterwards, crows scolded and mobbed anyone wearing that mask, incl…
Croydon: From a Saxon valley of crocuses to London's ambitious third cityOnce a small market town known for charcoal and beer, Croydon has evolved into a major business hub and one of London's most populous boroughs. Despite its modern urban identity, …
Crucifixion was a calculated tool of Roman state terror, not just a method of execution.Far from a uniform practice, crucifixion was a versatile, gruesome spectacle designed to maximize public humiliation and deterrence. By stripping victims naked and leaving them to…
Cruella de Vil: How a luxury car and a pun created a pop culture iconCruella de Vil is more than a villain obsessed with puppy fur. Her name is a calculated literary allusion, her signature car reflects mid-century status, and her evolution across …
Crust punk: The gritty, apocalyptic fusion of anarcho-punk and extreme metalBorn in the 1980s, crust punk emerged as a raw, politically charged evolution of anarcho-punk. By blending metal riffs with a stripped-down, DIY aesthetic, it created a sound that…
Crustaceans span a tenth of a millimetre to spider-crab giantsCrustaceans are mandibulate arthropods traditionally grouped in subphylum Crustacea—mostly aquatic forms from shrimp and crabs to barnacles and woodlice. About 67,000 described sp…
Cryptanalysis is the art of finding patterns in secrets that seem perfectly random.Breaking a code is rarely about raw power alone. It is a subtle game of intuition and pattern recognition. From the telegrams that shifted the course of world wars to the modern m…
Cryptomonads are tiny, biflagellate algae that carry the secrets of ancient red algae.These microscopic organisms, found in both fresh and salt water, possess unique pigments once thought to be exclusive to red algae and cyanobacteria. Some cryptomonads live harmle…
Crystal Palace secures first major trophy in historic FA Cup final victoryIn a tournament that stands as the oldest in football, the 2024–25 season delivered a major upset. Crystal Palace defeated Manchester City at Wembley Stadium to claim their first …
Crystal Palace was invented to fill a stadium beside a glass exhibition hallThe company that owned London's relocated Crystal Palace hosted the FA Cup final in its grounds but needed more visitors. So in 1905 it created a professional football club to pla…
Crystal Palace won the Conference League in Leipzig with a single goalCrystal Palace beat Rayo Vallecano 1–0 at the Red Bull Arena in Leipzig to win the fifth Conference League, UEFA's third-tier club competition. Their prize was a Europa League pla…
Crystal twinning is a structural mistake that creates beautiful, symmetrical mineral intergrowths.Crystals are rarely perfect. Sometimes, during growth or deformation, a mineral makes a structural error, resulting in two or more segments joined in a precise, symmetrical relati…
CSS let web pages change their whole look by editing one fileEarly web pages carried their fonts, colours and borders inside the markup, repeated wherever they appeared. Want every heading blue instead of red? You hunted down each one. Casc…
Cuba exports more medical personnel to the developing world than the G8 combinedWhile many nations provide short-term aid, Cuba operates a massive, sustained medical export system. From 1963, it has deployed over 600,000 health workers to more than 160 countr…
Cuba faces a humanitarian crisis as fuel supplies grind to a haltA nationwide blackout and a collapsing infrastructure have pushed Cuba into a desperate struggle. As the U.S. effectively chokes off oil shipments, everyday life has shifted from …
Cuba: the Caribbean pioneer that reached the World Cup knockout stagesIn 1938, Cuba became the first Caribbean nation to play in a FIFA World Cup. They didn't just participate; they fought through a replay to reach the quarter-finals, a feat achieve…- Cuba's first president was a US-based educator who resigned to trigger American intervention.Tomás Estrada Palma, the first president of Cuba, spent decades as an educator in New York before leading his nation. While he modernized infrastructure and public health, his leg…
Cuban Apostle who wrote Simple Verses into GuantanameraJosé Julián Martí Pérez (1853–1895) was poet, journalist, and organizer of Cuba’s independence struggle against Spain. He built émigré networks in Florida, founded the newspaper P…
Cuban cuisine is a complex culinary map of colonial history and island geographyCuban food is a vibrant fusion born from Spanish, African, and indigenous Taíno roots, shaped by the island's tropical climate and its history as a colonial trade hub. From the ic…
Cuckoo bees are nature's master thieves, stealing nests and resources to raise their young.Named for the bird that lays eggs in others' nests, cuckoo bees are solitary insects that practice brood parasitism. They do not build their own homes or collect pollen. Instead, …
Cúcuta: The Colombian Border City That Forged a Nation and Survived Total DestructionPerched on the Venezuelan border, Cúcuta is more than a transit hub. It is the birthplace of Gran Colombia, a site of colonial resistance, and a city that literally rebuilt itself…
Cuiabá: The Brazilian City That Once Served as a Remote Exile for Troublesome PoliticiansDeep in the heart of South America, Cuiabá grew from a gold-rush settlement into a bustling state capital. Once so isolated that the government used it to banish political disside…- Cultivate a personal apothecary by growing medicinal plants in your own backyardTransform any garden space into a functional wellness retreat. This guide explores how to integrate medicinal plant species into your home landscape, drawing inspiration from the …
Cultivated blueberries exist because one New Jersey woman paid locals for wild bushesA century ago, blueberries were a wild crop. Then Elizabeth Coleman White, daughter of a cranberry grower in the New Jersey Pine Barrens, offered cash for wild bushes with unusual…- Cultural heritage serves as a vital tool for building sustainable and resilient citiesA systematic review of existing literature found that cultural heritage is a key driver in making urban environments both creative and sustainable. By looking at how culture shape…
Cultural heritage sites in Ethiopia's North Shoa Zone face significant conservation threatsA study of 236 participants in the North Shoa Zone of Ethiopia found that historical and religious heritage sites are in poor condition and not adequately protected. Researchers u…
Cumania was not a single empire but a vast, shifting landscape of nomadic power.Often mistaken for a unified state, Cumania was a loose confederation of Turkic tribes dominating the Eurasian Steppe. From the 10th to the 13th centuries, these nomads acted as i…
Cumann na mBan: The Irish women's paramilitary force that defied history and authorityFormed in 1914, Cumann na mBan was an independent Irish republican women's organization that operated as a paramilitary force. From the 1916 Easter Rising to the late 20th-century…
Cumberland County, North Carolina: A History of Constant Territorial Evolution and Civic GrowthFormed in 1754, Cumberland County has spent centuries reshaping its borders through a series of partitions. Today, it stands as a major North Carolina hub, balancing a rich histor…
Cumberland: The Ancient Borderland That Vanished and Reappeared on the English MapCumberland has spent centuries shifting between Scottish and English rule, evolving from a medieval kingdom into a modern administrative anomaly. Though officially dissolved in 19…
Cumbia began on Colombia's coast and ended up across the AmericasCumbia is one of Latin America's great travelling sounds. It grew on the Colombian coast from a colonial-era meeting of Indigenous, African and Spanish traditions, is said to trac…
Cumhuriyet: The Century-Old Turkish Newspaper That Refuses to Be Silenced by State PowerFounded in 1924, Cumhuriyet stands as Turkey’s oldest up-market daily and its unofficial newspaper of record. Despite enduring decades of assassinations, imprisonment of its staff…
Cumin's name has passed from Sumerian clay tablets to modern kitchensSay cumin and you are repeating a word roughly as old as writing. It runs back through Latin cuminum and Greek kuminon to Akkadian kamunu and finally Sumerian gamun. The seeds the…
Cummingtonite: The fibrous amphibole hidden within metamorphosed iron-rich rocks across WisconsinNamed for its unique crystalline structure, cummingtonite is a fascinating member of the amphibole family. Often appearing as elongated or fibrous green to brown grains, this mine…- Cummins bet on the young diesel engine and waited years to winCummins began in 1919 in Columbus, Indiana, pairing a banker's money with a mechanic's faith in the diesel engine, invented just 20 years before. Real commercial success did not c…
Curating a Japanese pantry: A look inside the iconic Uwajimaya grocery chainChef J. Kenji López-Alt explores the essential staples of a Japanese pantry. Filmed on location at the iconic Uwajimaya grocery store in Seattle, this haul provides a practical gu…
Curating the perfect cottage garden border with expert perennial selectionsRosy Hardy showcases versatile herbaceous perennials that thrive in diverse light conditions. This guide highlights specific plant varieties capable of elevating any garden border…
Curiosity does not fade with age, but it does change its formMany fear that aging inevitably dulls the mind, but research suggests that maintaining curiosity is linked to reduced cognitive decline. This video explains how the nature of your…
Curious minds from Utah tackle the big questions in this science Q&A session.This installment of the Be Smart series features a collection of scientific inquiries submitted by middle school students. It offers a look at how younger generations engage with …
Curitiba turned planning into a global brandParaná's capital sits on a plateau 932 metres up and had 1,829,225 residents in 2024, making it Brazil's eighth-largest city. Its biggest boom came after the 1960s, when a master …
Curl measures how much a flowing field spins at each pointDrop a tiny paddle wheel into moving water and it may start to turn. The curl of a vector field captures that spin as an arrow: its length gives the strength of the swirl, its dir…
Current cosmic star formation is significantly lower than the historical averageResearchers analyzing data from the Sloan Digital Sky Survey studied approximately 105 galaxies with measurable star formation. By comparing emission lines with continuum properti…
Current-driven magnetic multilayers predicted to emit spin waves like a laserA theoretical study of magnetic thin-film junctions found that a direct current crossing the boundary between a normal metal and a ferromagnet can stimulate the emission of spin w…
Curry is a British lumping of Indian dishesIndians named stews by their spices and methods—dopiaza, rogan josh—not by one catch-all. British colonial kitchens bundled them as "curry," a word likely from Dravidian kaṟi via …
Curtis Sliwa: The Radio Host Who Founded a Global Anti-Crime Movement in New YorkBefore becoming a perennial mayoral candidate and radio personality, Curtis Sliwa launched the Guardian Angels in 1979 to patrol New York City’s dangerous subways. What began as a…
Curves can be written as recipes in a single parameter tParametric equations express several quantities—often coordinates—as functions of parameters. One parameter commonly traces a moving point's path as a parametric curve; time is a …
Curving, Gluing, and Lining: The Art of Seamless False Lash ApplicationAchieving the perfect, natural-looking false lash set requires more than just glue. Expert application involves specific preparation steps—from curling to strategic lining—to ensu…
Cusco is a living architectural palimpsest where Incan foundations support Spanish colonial history.Cusco was once the heart of the Inca Empire, but its streets tell a layered story of conquest and resilience. From the ancient Killke culture to the Spanish colonial era and the d…