Intellect PlusCards starting with C
9,109 cards. Page 152 of 152.
Cusco's name may mean rock of the owlCusco, in southeastern Peru near the Sacred Valley, sits about 3,400 metres up and had 428,450 residents in 2017, the largest city in the Peruvian Andes. Tradition says Manco Cápa…
Cushing’s syndrome is a rare disorder triggered by an excess of the stress hormone cortisol.Often mistaken for common metabolic issues, Cushing’s syndrome occurs when the body is flooded with cortisol for too long. While frequently caused by external steroid medications,…
Cusk-eels include some of the deepest-living fishesOphidiiformes bundles cusk-eels, pearlfishes, live-bearing brotulas, and allies among ray-finned fishes. Fossils turn up by Maastrichtian time, such as Italy’s Pastorius. Abyssobr…
Customizable organic frameworks show promise for next-generation energy storage and conversionA review of covalent organic frameworks (COFs) highlights their potential as versatile materials for electrochemical energy technologies. These crystalline organic structures poss…
Customizing the architecture of porous materials through precise organic linker designResearchers have identified that the unique properties of metal-organic frameworks (MOFs)—highly porous materials used for storage and catalysis—can be precisely engineered by mod…
Customizing your document layout beyond the default settings in Microsoft Word 2007Standard document templates often fail to meet specific project requirements. This guide explains how to modify essential page layout and formatting features in Word 2007 to ensur…
Customizing your document layout in Microsoft Word 2007 for professional resultsStandard document settings often fall short of specific project needs. This overview explains how to adjust essential page formatting, including orientation, paper size, and margi…
Cut a hologram in half and each piece still shows the whole sceneTear a photograph in two and you get two halves of a picture. Split a hologram and each fragment still contains the entire scene, seen through a smaller window. That is because ev…
Cut an eight-foot board into one-foot pieces and you only get sevenTry slicing an eight-foot plank into one-foot lengths with a saw that removes an eighth of an inch per cut. You end up with seven good pieces and an eighth that falls short by sev…
Cut the link between the brain's halves and each side knows different things.To treat severe epilepsy, surgeons sometimes sever the corpus callosum, the bridge between the brain's two hemispheres. In the 1960s Roger Sperry and Michael Gazzaniga found that …
Cutlery once meant knives until forks joined the table setCutlery covers utensils for serving and eating—originally knives, while forks and spoons counted as silverware—within broader flatware or tableware. Before mid-nineteenth-century …
Cutting 40 minutes off a mountain journey through wildlife corridorsIndia is constructing a massive 210-kilometre economic corridor to link the capital with the winter capital of Uttarakhand. It isn't just about speed; it is a feat of engineering …
Cutting apart to learn what living structure hidesDissection—from Latin dissecare, to cut to pieces—opens deceased animals or plants so anatomy can be read in three dimensions. Autopsy asks why a human died; surgery uses finer “d…
Cuttlefish start watching the world, and possibly picking prey, before they hatchA cuttlefish's eyes appear to be fully formed before it leaves the egg, and the embryo starts looking around from inside. Hatchlings may then prefer to hunt whatever prey they saw…
Cyan is the elusive bridge between blue and green, found in stars and ink.Cyan is more than just a color; it is a fundamental pillar of modern printing and a natural phenomenon spanning from the atmosphere of Uranus to the depths of the ocean. Whether y…
Cyanide suffocates cells even while the blood stays full of oxygenCyanide does not stop you breathing air; it stops your cells using it. By jamming a key enzyme in the mitochondria, it leaves oxygen stranded in the blood, which is why victims ca…
Cyanogen is a toxic, almond-scented gas that can produce one of the hottest flames.This colorless compound, known chemically as ethanedinitrile, is a potent hazard that forms cyanide within the body. Beyond its toxicity, it serves as a versatile industrial inter…
Cyberbullying is often less frequent than traditional bullying but occurs mostly outside schoolResearchers who surveyed hundreds of secondary school pupils found that cyberbullying is less frequent than traditional bullying. However, they observed that these digital inciden…
Cyberculture is not just a subculture; it is the modern human conditionOnce a niche playground for hackers and academics, cyberculture has evolved into the primary architecture of our social reality. It is no longer a digital subculture existing on t…
Cyberpunk 2077 turns the classic hero's journey into a desperate fight for survivalIn the dystopian sprawl of Night City, you are not a savior. You are V, a mercenary fighting to reclaim your own mind from a digital ghost. This action role-playing game challenge…
Cycad genome reveals deep evolutionary links across seed plantsResearchers sequenced the 10.5-billion-base genome of the cycad Cycas panzhihuaensis along with transcriptomes from 339 cycad species. They found that cycads likely share a common…
Cycads look like palms but split from them hundreds of millions of years agoWith stout trunks and crowns of stiff feathery leaves, cycads pass easily for palms. They are not even close relatives. These slow-growing seed plants date back roughly 300 millio…
Cyclic voltammetry turns a simple electrical sweep into a powerful chemical diagnostic tool.By ramping voltage back and forth across an electrode, scientists can map the hidden life of molecules. This technique, known as cyclic voltammetry, reveals how substances oxidize…
Cycloadditions allow chemists to build complex carbon rings without using nucleophiles or electrophiles.In the world of organic synthesis, cycloadditions are elegant reactions where unsaturated molecules snap together to form cyclic structures. By reducing bond multiplicity, these r…
Cyclothymia: The Unpredictable Mood Disorder That Mimics Bipolar Without Reaching Its ExtremesOften mistaken for simple moodiness, cyclothymia is a distinct, chronic condition characterized by frequent, spontaneous shifts between hypomanic highs and depressive lows. While …
Cygnus A is a cosmic powerhouse that carves massive holes in the intergalactic medium.Located 500 million light-years away, Cygnus A is one of the most intense radio sources in the universe. Beyond its brilliant radio lobes, this galaxy hides a supermassive black h…
Cygnus, the celestial swan, holds the secrets of black holes and distant exoplanets.Spanning the Milky Way, the constellation Cygnus is far more than a mythological bird. It is a powerhouse of high-energy physics, home to the first identified black hole, the most…
Cymbals once scared armies before they coloured symphoniesThin copper-alloy discs—usually indefinite in pitch—clash in war epics from the Shahnameh to janissary bands. By the mid-eighteenth century they sat in European orchestras; drum k…
Cymru kept a Celtic language after Edward’s conquestWales—Cymru in Welsh—is a UK country on Great Britain bordered by the Irish Sea, England, the Bristol Channel, and the Celtic Sea. Distinct Welsh culture rose among Britons after …
Cyndi Lauper rewrote a sexist song and helped push wrestling onto MTVCyndi Lauper thought the original lyrics of Girls Just Want to Have Fun were misogynistic, so she reworked it into an anthem for young women. Its video won the first Best Female V…
Cynodonts were the ancient bridge between cold-blooded reptiles and modern mammalsLong before mammals dominated the earth, a group of mammal-like reptiles called cynodonts pioneered the traits that define us today. From the secondary palate that allowed them to…
Cynthia Erivo’s journey from London student to global star was defined by quiet resilienceBefore she was a household name, Cynthia Erivo was a music psychology student who felt like an outsider at the Royal Academy of Dramatic Art. Today, she is a powerhouse performer …
Cyprian Norwid: The Starving Genius Who Became Poland’s Fourth BardCyprian Norwid was a brilliant, nonconformist poet, painter, and philosopher who died in poverty, largely ignored by his contemporaries. Today, he is celebrated as a visionary pre…
Cypriniformes pack carps, minnows, loaches into one giant orderCypriniformes is a vast order of ray-finned fishes splitting into barbs, loaches, botias, carps, danionins, minnows, and more. It is often called an “order of ostariophysans,” bin…
Cyril and Methodius brought Slavic letters to Morava’s realmGreat Moravia was the first major predominantly West Slavic state in Central Europe, centered on the Morava River across today’s eastern Czech lands and western Slovakia. Under Ra…
Cyril's Ephesus council crushed Nestorius in 431Patriarch of Alexandria from 412 to 444, Cyril of Alexandria wrote fiercely on Christ's natures and chaired the Council of Ephesus that deposed Nestorius. Later ages crowned him P…
Cyrus built the largest empire the world had yet seenFrom a corner of the Iranian plateau, Persian nomads forged a state that at its height covered roughly 5.5 million square kilometres—from the Balkans to the Indus. It fell to Alex…
Cyrus built the largest empire the world had yet seenIran’s plateau holds continuous urban life back to the fifth millennium BC. Medes first unified the land in the seventh century BC; by 550 BC Cyrus the Great’s Persians had overtu…
Cyrus McCormick did not invent the reaper, but he revolutionized how the world eats.While McCormick famously claimed credit for the mechanical reaper, he was merely one of several engineers refining the technology in the 1830s. His true genius lay in business: he…
Cyrus Mistry ran the Tata empire without carrying the Tata nameWhen Cyrus Mistry took charge of the Tata Group in 2012, he became only the second chairman in its history not named Tata. His family had owned a slice of the holding company sinc…
Cyrus W. Field: The man who connected continents and lost his entire fortuneBefore he was a legend of global communication, Cyrus W. Field was a paper merchant who paid off his failed firm's debts out of personal honor. His relentless drive eventually lai…
Cyrus's empire still echoes in a plateau once called PersiaIran—historic Persia—occupies a West Asian plateau between Mesopotamia, the Caspian, and the Gulf. The Medes unified the territory in the seventh century BCE; Cyrus the Great's si…
Cysteine is the versatile amino acid that holds your proteins together and fights toxinsBeyond building proteins, cysteine acts as a vital chemical multitasker. It forms the structural bridges that give hair and insulin their shape, serves as a precursor to essential…
Cystic fibrosis is named after cysts, yet involves noneA cyst is a sealed pouch whose wall is built from cells that look and behave unlike their neighbours. It may hold air, fluid or something semi-solid, and it can vanish on its own.…
Cysticercosis is a leading cause of preventable epilepsy, yet it remains widely misunderstood.You cannot catch cysticercosis from eating undercooked pork. Instead, this parasitic infection arises when you accidentally ingest eggs from the tapeworm Taenia solium, often via …
Cytokines are the body's microscopic messengers that orchestrate your immune system's complex defensive response.Think of cytokines as tiny protein keys that unlock cellular behavior. Released by immune and non-immune cells alike, these chemical messengers travel through your bloodstream or …
Cytosine is the fragile foundation of life that keeps changing its own identityAs one of the four essential building blocks of DNA and RNA, cytosine is vital for encoding life. Yet, this molecule is inherently unstable. It frequently undergoes spontaneous ch…
Czechia’s short English name fought Bohemia for decadesThe Czech Republic—also Czechia, historically Bohemia—is a landlocked Central European state of 78,871 square kilometres between Austria, Germany, Poland, and Slovakia. A ninth-ce…
Częstochowa grew around a fortified monastery that Swedish armies repeatedly failed to takeMillions of pilgrims travel each year to a hilltop monastery in southern Poland to see the Black Madonna, an icon of Mary that arrived in 1384. The town below was burned and rebui…