Intellect PlusCards starting with A
11,854 cards. Page 162 of 198.
An inductor is a coil of wire that resists any change in currentWind a wire into a coil and it gains a stubborn streak. Try to push more current through and it pushes back; try to cut the current and it fights to keep it flowing. That electric…
An infamous art forger's son faked his father's paintings, complete with certificatesHan van Meegeren became notorious for forging art. Then his son went one layer deeper, producing fakes of his father's own work and supplying provenance certificates to go with th…
An infarction is more than just a heart attack; it is tissue death everywhere.We often equate infarction with heart attacks, but the term describes a broader biological catastrophe: the death of tissue due to a sudden loss of blood supply. From the brain to…
An infrared camera captures a mountain lion's secret behavior in the Montana wilderness.Adventurer Casey Anderson uses infrared technology to track a mountain lion in Montana. The footage reveals an unexpected behavior during a routine kill, offering a rare glimpse i…
An ingrown toenail is rarely just a nail problem; it is often a skin issue.While we blame the nail for digging into our skin, the root cause is often excessive soft tissue bulging around the nail plate. This common condition, known as onychocryptosis, is…
An inside look at the Soviet KV-1 heavy tank's internal configuration and designThis video provides a detailed cross-section view of the Soviet KV-1 heavy tank. It is worth watching for anyone interested in the mechanical layout and internal engineering that …
An insult to a so-called blacksmith slave launched an empire from Manchuria to CrimeaIn 546 the Turkic chief Bumin crushed a revolt for his overlords, the Rouran, and asked for a royal bride as reward. Their ruler sneered that a blacksmith slave had no right to as…
An insurance actuary revolutionized music while the music world remained ignorantAn insurance actuary revolutionized music while working full-time in business and remaining largely ignored by the musical world. Charles Ives pioneered experimental techniques de…
An internist is not an intern, and not quite a family doctor eitherInternists are fully trained specialists in adult disease, the doctors called when symptoms such as fatigue, confusion or weight loss refuse to point at a single organ. The name c…
An intimate underwater encounter with the world's largest fish speciesShane dives into the ocean to film a whale shark at close range. This footage offers a rare, direct look at the behavior of these massive creatures in their natural habitat, showc…
An introduction to the core concepts powering modern artificial intelligence systemsThis lecture from Harvard University's CS50 course provides a foundational overview of artificial intelligence. It covers the essential terminology and mechanisms that define how …
An introduction to the history and cultural significance of the Irish language in Ulster.This video provides a foundational overview of the Irish language within the context of Ulster. It serves as an entry point for those interested in exploring the linguistic and cu…
An invasive species is dismantling a crab utopiaFor millions of years, Christmas Island served as a peaceful haven for local crabs. This video captures the dramatic shift as an invasive predator disrupts this ancient balance, s…
An investigation into why Mount Olympus ought to exceed Mount Everest in heightStefan and Alexis travel to Olympic National Park in Washington state to investigate the geological mysteries of Mount Olympus and uncover some of the region's most fascinating ge…
An Irish abbot drafted rules to shield civilians in 697In 697 the abbot Adomnán of Iona summoned kings and churchmen from across Ireland and Scotland to Birr. There he gave them the Law of the Innocents, which forbade killing women an…
An island on the Nile held a secret Jewish temple in ancient EgyptElephantine, an island within modern Aswan, served as a unique cultural crossroads in the ancient world. Beyond its Egyptian roots, the island hosted a distinct mercenary communit…- An island sanctuary in the East China Sea dedicated to the bodhisattva GuanyinMount Putuo is a sacred Buddhist destination spanning just 12.5 square kilometres. While it serves as a spiritual hub for millions of pilgrims, it is also a botanical refuge home …
An island sanctuary where wildlife remains entirely untouched by human presenceBiologists explore a remote island ecosystem that has remained isolated from human interference. This documentary footage showcases a rare environment where animal species have ev…
An island that would vanish if you melted its ice capBerkner Island is not land in the traditional sense. It is a massive Antarctic ice rise, a dome formed where bedrock sits below sea level. If the ice were removed, the entire feat…
An island-studded sea that ferried Greece into AsiaThe Aegean Sea, a 215,000-square-kilometre Mediterranean embayment between the Balkans and Anatolia, links to the Black Sea via the Dardanelles and Marmara. Its island chains, the…
An Islington pub kept charging in shillings for twenty years after decimalisationBritain switched to decimal coins on 15 February 1971, but the King's Head in Islington did not. Its theatre founder, Dan Crawford, disliked the change, so for more than twenty ye…
An Italian Civil War western filmed mostly in SpainSergio Leone's 1966 epic pairs Clint Eastwood's taciturn bounty hunter with Lee Van Cleef's killer-for-hire and Eli Wallach's chaotic bandit. Though financed in Italy, cameras mos…
An itinerant healer in Podolia founded Hasidic Judaism almost by accidentIsrael ben Eliezer, the Baal Shem Tov or Master of the Good Name, lived from about 1700 to 1760 in Polish Podolia. Census records trace him in Medzhybizh as kabbalist, miracle-wor…
An MD means a new doctor in America but a research degree in BritainIn the United States, MD is the degree every new physician earns. In the UK and Ireland, junior doctors graduate with a bachelor's in medicine and surgery, and the MD is a higher …
An MTV VJ registered mtv.com himself, then got sued for itIn 1993 Adam Curry, then a presenter on MTV, grabbed the unclaimed domain mtv.com to act as the channel's unofficial internet voice. His bosses approved at the time, but when he l…
An NFL team spent three seasons as visitors in a soccer stadiumFrom 2017 to 2019 the Los Angeles Chargers played home games in a soccer ground in Carson, California, while their new stadium in Inglewood rose. It was the smallest venue in the …
An nth root undoes raising a number to the nth powerIf n copies of r multiply to x, then r is an nth root of x. Degree two is a square root; degree three a cube root; higher degrees take ordinal names. Extracting roots is the inver…
An Octopus's Entire LifeThe giant Pacific octopus, Enteroctopus dofleini, begins life as a 3.5 mm hatchling and grows into the record-sized octopus; a female breeds once and dies soon after her eggs hatc…- An old antidepressant, amitriptyline found a second career treating painMerck scientists found amitriptyline in the late 1950s, and US regulators approved it in 1961 for depression. Because of its side effects it is rarely a first choice for low mood …
An Old Bailey barrister coined the phrase presumed innocent until proven guiltyThe familiar words presumed innocent until proven guilty were coined by the British barrister William Garrow during a 1791 trial at the Old Bailey. He insisted that accusers be te…
An old wooden bridge in Colorado planted the seed for Stephen King's ItIn 1978 Stephen King walked across a humped wooden bridge in Boulder to collect his car and thought of the Three Billy Goats Gruff. What if a troll lived under a real town? Eight …
An old-style light bulb turns about 95 percent of its power into heatA classic incandescent bulb heats a tungsten coil until it glows, and only 2 to 5 percent of the electricity comes out as visible light. Getting even that far took more than a cen…
An Olympic torch and a space quilt marked this crew's returnWhen Expedition 37 returned to Earth in November 2013, they brought more than just scientific data. From carrying an Olympic torch during a spacewalk to stitching a global communi…
An Omani sultan moved his capital from Arabia to the island of ZanzibarAt its peak the Omani Empire reached from the coasts of modern Iran and Pakistan to northern Mozambique. In 1832 Said bin Sultan shifted his seat of power across the Indian Ocean …
An online diary site invented the comment box and friends-only postsTwo features now baked into every social network, the reader comment and posts visible only to friends, were first dreamed up by Open Diary, a late-1990s community of people keepi…
An opinion backed by facts and principles quietly becomes something stronger: an argumentTwo people can accept exactly the same facts and still reach opposite conclusions. That gap is where opinion lives. Yet opinions are not all equal: one can be better supported tha…
An opium dream, a knock, and Kubla Khan broke offSamuel Taylor Coleridge (1772–1834) coined "suspension of disbelief," helped found English Romanticism with Wordsworth, and claimed Kubla Khan arrived in an opium reverie—until a …
An oral history of Robert McCormick Adams, former Smithsonian Secretary and Oriental Institute Director.This video features the second part of an interview with Robert McCormick Adams, a pivotal figure in archaeology and institutional leadership. It provides a rare, firsthand look a…
An ordinary thunderstorm lives about an hour and a half in three actsMost thunderstorms are born, peak and die in roughly 90 minutes, each stage lasting around half an hour. Warm, moist air shoots upward, builds a cloud that can top 20 kilometres, …
An original Dadaist talked Fluxus out of calling itself neo-DadaGeorge Maciunas first pitched his circle of experimental artists as neo-Dada. Raoul Hausmann, one of the original Dadaists, wrote back that neo means nothing and any -ism sounds d…
An orisha is not merely a god, but a complex link between people and power.In Yoruba tradition, an orisha is a multidimensional unity where divine command meets natural forces and ancestral memory. Far from simple anthropomorphic deities, these spirits g…
An orphan who hated his childhood filmed faces so closely they still unsettle criticsCarl Theodor Dreyer spent his first two years in orphanages and grew up with adoptive parents who made him feel like a debt. He became Denmark's great austere filmmaker, and his 1…- An orphaned beggar monk founded China's Ming dynastyAt sixteen Zhu Yuanzhang lost his parents and a brother to epidemic and survived by begging as a novice Buddhist monk. When Mongol troops burned his monastery, he joined the rebel…
An orphaned Osaka novelist perfected hush on the pageYasunari Kawabata (11 June 1899 – 16 April 1972) wrote spare, shaded Japanese prose that won him the Nobel. Orphaned by age four and raised by grandparents in Osaka, he met his si…
An Oscar-nominated feature film where nobody speaks a single wordAardman's 2015 Shaun the Sheep Movie tells an 84-minute story about a flock rescuing their memory-wiped farmer from the city, using only bleats, sound effects and sight gags. Crit…
An Ottoman engineer used a steam turbine to turn a roasting spit in 1551Steam turbines generated about 42 percent of American electricity in 2022, yet the idea is ancient. Hero of Alexandria described a spinning steam toy in the first century, and in …
An Ottoman sultan abdicated for his 12-year-old son, then was called backWorn down by war and grief after losing his favourite son, Murad II handed the throne to young Mehmed II in 1444. The boy's government floundered, the grand vizier summoned the fa…
An outcast prince rebuilt the Zulu army and a regional powerShaka was the eldest son of a Zulu king, yet he was dismissed as illegitimate and sent away with his mother. He grew up a soldier in a more powerful neighbouring clan. By 1816 he …
An oval basin named for the Mexica holds vast oil shelvesThe Gulf of Mexico is an Atlantic marginal sea cupped by the U.S. Gulf Coast, Mexican states from Tamaulipas to Quintana Roo, and Cuba. The oval basin spans about 1.6 million squa…
An overactive thyroid can mimic an endless shot of adrenalineWhen the thyroid gland pumps out too much hormone, the whole body speeds up: a racing heart, trembling hands, sweating, sleeplessness and weight loss even with a hearty appetite. …- An overheard phrase on a park bench launched Stefan Banach's mathematical careerStrolling through Kraków's Planty park in 1916, the mathematician Hugo Steinhaus was startled to hear two young men on a bench discussing the Lebesgue integral, then a fairly new …
An unconformity is a missing chapter in the Earth's long and complex geological history.Imagine reading a book where several pages have been torn out, leaving a gap in the narrative. In geology, an unconformity is exactly that: a buried surface where the rock record …
An undefeated champion was left out of the final four-team playoffThe 2023–24 College Football Playoff was defined by controversy and transition. While Michigan secured their first title since 1997, the selection committee sparked outrage by exc…
An undercover agent captures a secret meeting with an illegal ivory dealer on camera.This footage documents a high-stakes encounter between an undercover agent and a dealer of illicit ivory. By concealing a camera within his shirt, the agent records the transactio…
An undercover FBI agent got the Bonanno family thrown off the Mafia CommissionFrom 1976 to 1981 an FBI agent named Joseph Pistone lived inside the Bonanno crime family under the alias Donnie Brasco. When the deception came out, the other New York bosses exp…- An unexpected bond forms between an orangutan and a hound dogBy the river, an extraordinary encounter unfolds as Surya the orangutan meets a hound dog. Rather than reacting with aggression or fear, the two animals interact with a familiarit…
An unexpected interruption during an intimate wildlife encounterWitness a moment where human intervention meets the private lives of animals. This National Geographic footage captures the exact second wardens stop a trespassing vehicle, inadve…
An unknown general took 150,000 prisoners in Italy within a yearThe French Revolutionary Wars of 1792 to 1802 set revolutionary France against Britain, Austria, Prussia, Russia and others. A mass conscript army carried French rule into Italy, …- An unlikely arsonist becomes the key to solving a crimeWitnessing a crime is usually a matter of being in the right place at the right time. This video explores how an arsonist, through a stroke of bad luck, became the unexpected witn…
An unruly orphan from Caracas freed six nations from SpainOrphaned young and raised largely by an enslaved woman named Hipolita, the boy Simon Bolivar was so neglectful of his lessons that his uncle in Madrid called him very ignorant. Th…