Intellect PlusCards starting with A
11,854 cards. Page 159 of 198.
Amorite outsiders founded Babylon and ruled an Egyptian dynastyFirst named in Sumerian records around 2500 BC, these Northwest Semitic speakers were mocked as tent-dwellers who ate forbidden food. Within centuries their chiefs ruled Isin, Mar…
Amos Oz: The Israeli writer who argued that peace is a real estate dispute.Amos Oz was Israel’s most translated author, a literary giant who helped define the nation’s modern identity. Beyond his forty books, he was a polarizing political voice, famously…
Amoxicillin is a staple for children, yet many ear infections don't need itAmoxicillin is among the antibiotics most often given to children, with over 23 million US prescriptions in 2023. Yet most children older than two with a middle ear infection gain…
Amphetamine treats ADHD—and can also hijack rewardLazăr Edeleanu isolated the chemical in 1887; medicine adopted it in the late 1920s as Benzedrine. Today it is first-line for ADHD and narcolepsy, while recreational megadoses ris…
Amphibians are now the most threatened group of vertebrates on EarthA global assessment of 8,011 amphibian species found that 40.7% are currently threatened. The study observed that the overall status of amphibians is deteriorating globally, with …
Amphibolite: The metamorphic record of Earth's deep tectonic shifts and intense heatAmphibolite is a dense, dark metamorphic rock defined by its signature mineral group. Formed deep within the crust, it serves as a geological fingerprint for intense pressure and …
Amphiphiles are the chemical bridge between water and oil, enabling life as we know it.Every cell in your body relies on a specific class of molecules that love both water and fat. These dual-natured compounds, known as amphiphiles, spontaneously self-assemble into …
Amr Diab blended East and West into what fans call Mediterranean musicIn 1996 an Egyptian singer from Port Said released Nour El Ain, a song that mixed Middle Eastern rhythms with Western pop. It won him his first World Music Award and an audience f…
Amr ibn al-As launched the conquest of Egypt on his own initiativeIn late 639 an Arab commander named Amr ibn al-As marched on Byzantine Egypt without waiting for full backing. Within two or three years Alexandria surrendered, the swiftest of th…
Amravati: A Strategic Gateway Between Ancient Empires and Modern Maharashtra CommerceNestled near vital hill passes between the Purna and Wardha river basins, Amravati has served as a critical trade and administrative hub for centuries. From its roots as a regiona…
Amritsar is named for the Golden Temple’s nectar poolPunjab’s second-largest city after Ludhiana counts about 1.13 million people in the 2011 census and draws nearly a hundred thousand visitors daily. Guru Ram Das is credited with f…
Amsterdam's iconic canal ring was built like a windshield wiper, not from the centerThe famous concentric canal belt of Amsterdam is often misunderstood. Contrary to popular belief, the city did not expand outward from its core. Instead, 17th-century planners con…
Amsterdam's metro system rose from the ashes of 1970s urban planning riotsAmsterdam's rapid transit network is a relatively modern invention, born from post-war traffic congestion and intense public pushback. While early 1920s proposals for underground …
Amsterdam’s stock exchange of 1602 still defines “modern”Dam in the Amstel grew from a twelfth-century fishing village into a Dutch Golden Age world port. As of 1 January 2026 the city proper held about 941,873 people. The 1602 Amsterda…
Amtrak Airo: The High-Speed Trainsets Designed to Eliminate Locomotive Swaps Across AmericaAmtrak is replacing its aging fleet with Airo, a new class of high-speed trainsets built by Siemens. By utilizing fixed-drawbar configurations and hybrid propulsion, these trains …
Amtrak was never intended to be a permanent, profitable national rail operatorBorn from a 1970 legislative compromise, Amtrak was widely expected to vanish within years. Washington insiders viewed the quasi-public corporation as a temporary political fix fo…
Amur freshwater helps freeze a Pacific factory of lifeThe Sea of Okhotsk covers about 1.58 million square kilometres between Kamchatka, the Kurils, Hokkaido, Sakhalin, and Siberia, averaging 859 metres deep and plunging to 3,372. Amu…
Amur Oblast: A Russian frontier defined by gold, soybeans, and space explorationTucked into the Russian Far East, Amur Oblast is a vast, resource-rich territory bordering China. Once a buffer state, it now powers the region with massive hydroelectric dams, do…
Amy Lowell: The Cigar-Smoking Brahmin Who Revolutionized Modern American PoetryBorn into a prominent New England dynasty, Amy Lowell defied societal expectations to become a fierce champion of free verse. Though often remembered for her unconventional person…
Amy Tan transformed family trauma into a literary career that redefined American storytellingBefore becoming a celebrated novelist, Amy Tan worked as a freelance business writer under pseudonyms to hide her identity. Her path to literary success was forged through intense…
Amyotrophic lateral sclerosis is a complex, terminal condition that progressively destroys voluntary muscle control.Often called Lou Gehrig's disease, this neurodegenerative disorder causes the gradual loss of motor neurons, leading to muscle weakness, stiffness, and eventual respiratory failur…
An 11-million-pound journey toward the lunar frontierAt just one mile per hour, NASA’s crawler-transporter 2 is preparing for a massive trek. The Artemis II rocket and Orion spacecraft are moving from the assembly building toward th…
An 185-word Chinese text from 1209 taught the world to farm shiitakeThe oldest written guide to growing shiitake is a short passage in a Chinese county record compiled in 1209, under the Song dynasty. Copied and cited for centuries, it was adapted…
An 18th-century Jesuit imagined atoms as points of pure forceRoger Joseph Boscovich, a priest from Dubrovnik, stripped matter out of atoms altogether and described them as points surrounded by forces. The same man helped save the cracked do…
An 18th-century Najdi preacher whose alliance with the Saud family still shapes ArabiaMuhammad ibn Abd al-Wahhab was chased out of Basra for preaching against shrine veneration. Back in central Arabia he struck a pact with Muhammad bin Saud, and the power-sharing d…
An 18th-century Spanish general blamed rebellions on bad rulersWriting between 1726 and 1730, the Marquis of Santa Cruz de Marcenado argued that a people seldom rises up unless its governors are at fault. His prescription for stopping rebelli…
An 8,000-kilometre grassland once outranked the Silk RoadThe Eurasian Steppe, or Great Steppe, stretches some 8,000 kilometres of temperate grassland from Manchuria through Mongolia to the mouth of the Danube. Long before the Silk Road,…
An abscess is the body walling off an infection, and the wall backfiresWhen bacteria invade tissue, the body floods the spot with white blood cells and then seals the resulting pus inside a capsule of healthy cells. That barrier protects neighbouring…
An accidental button press set off the fatal dive of Atlas Air Flight 3591About 29 seconds after the flaps began moving on its approach to Houston, something switched the cargo jet's go-around mode on by accident, and the engines surged toward climb pow…
An accidental click on YouTube turned Justin Bieber into a starIn 2007 Scooter Braun was hunting for videos of a different singer when he clicked on a 12-year-old from Stratford, Ontario, covering Ne-Yo's So Sick. He tracked down the boy's sc…
An active American airport runway features two permanent grave markers embedded in the asphaltMost airports are defined by concrete and steel, but one facility in Georgia holds a more somber history. During a runway expansion, construction crews encountered a family plot b…
An activist's journey from a Syrian refugee camp to a high-stakes U.S. legal battle.Mahmoud Khalil, a Columbia graduate student and activist, became the center of a national firestorm when he was detained by federal agents in 2025. His case, involving allegations…
An actor with a lineage spanning from British politics to international banking dynastiesJack Huston is a recognizable face in television and film, from Boardwalk Empire to Fargo. Yet, his personal history is arguably as complex as his roles. He descends from the inau…
An Adelaide paper became a global News Corp empireKeith Rupert Murdoch, born 1931 in Melbourne, inherited his father's small Adelaide paper The News in 1952 and scaled it into News Corp—hundreds of local, national, and internatio…- An ADHD drug with no known misuse potential, and a slow startMost ADHD medicines are stimulants, with the misuse worries that come with them. Atomoxetine, sold as Strattera, is not one. Reviews find it works about as well as methylphenidate…
An aerial expedition through the wild interface of forest and oceanJoin wildlife filmmaker Bertie Gregory on a high-altitude tour of Vancouver Island. This episode captures the diverse web of life thriving where the Pacific Northwest's wild fores…
An affine space is geometry after you forget where the origin isTwo people add arrows on the same map, but each secretly believes a different point is the centre. Their sums disagree, except in one special case: when the weights add up to exac…
An AI agent can autonomously plan and execute complex chemical synthesesResearchers developed ChemCrow, an AI agent that combines a large language model with 18 specialized chemistry tools. By giving the model access to these external tools, they foun…
An AI just conquered one of the world's most complex strategy gamesDeepMind's AlphaStar has achieved a grandmaster rating in StarCraft II, proving that AI can master real-time strategy at a professional level. This video explores how the system r…
An AI pioneer once designed a machine whose only job was switching itself offIn 1952 Marvin Minsky sketched the ultimate machine: flip its switch and a mechanical hand pops out to flip it back. His mentor Claude Shannon built one, and Arthur C. Clarke foun…
An AI scored in the top 20 percent of university applicantsThe Todai Robot successfully navigated the University of Tokyo's rigorous entrance exam, raising a fundamental question about the nature of learning and what humans should priorit…
An AI system can autonomously design and execute complex chemical experimentsResearchers developed Coscientist, an artificial intelligence system powered by GPT-4 that can independently plan and perform multi-step chemical research. By integrating large la…
An Albanian pop star who topped a Billboard dance chart after moving to CaliforniaAt 15, Bleona Qereti became a household name in Albania after one festival performance. Two decades, eight Albanian albums and a move to Los Angeles later, she reached the top spo…
An Albanian tax collector's rise made him the founder of modern EgyptMuhammad Ali arrived in Egypt in 1801 as a junior officer in an Albanian unit sent to reclaim the country after the French left. Four decades later he ruled an empire stretching a…
An algebraic structure is a set that obeys a short lawbookTake a nonempty set, add operations such as addition or multiplication, and insist on a finite list of identities. That package—the carrier set, the operations, and the axioms—is …
An alien family’s mission to destroy humanity is interrupted by the absurdity of EarthCreated by Justin Roiland and Mike McMahan, Solar Opposites follows four aliens who crash-land on Earth after their homeworld is destroyed. While some embrace human culture, other…
An alien invasion thriller that traded American tropes for a gritty Moscow perspectiveReleased in 2011, The Darkest Hour offered a unique spin on the alien invasion genre by shifting the focus from the United States to Russia. Produced by Timur Bekmambetov and dire…
An allergic gullet can look like heartburn yet shrug off acid blockersIn eosinophilic esophagitis, immune cells that should never be in the gullet flood into it, apparently in response to food. The result mimics acid reflux, with trouble swallowing …
An alligator's bite is crushing, yet a strip of tape can hold its jaws shutAdult American alligators once held the record for the strongest bite ever measured in a laboratory, up to 13,172 newtons. The muscles that open their jaws, though, are so weak th…
An almond is not a nut, and California grows most of themBotanically, the almond is the seed of a drupe, a cousin of the peach whose fleshy layer has shrunk into a leathery hull. About 80 percent of the world's supply comes from Califor…
An almond-sized patch of brain runs your temperature, hunger and sleepDeep beneath the thalamus sits a structure roughly the size of an almond that steers body temperature, hunger, thirst, fatigue and daily rhythms. The hypothalamus is the brain's b…
An alphabetical journey through every nation on Earth, starting with South Africa.Geography Now aims to profile every country in the world in alphabetical order. This video explores the provinces of South Africa with assistance from Dr. Khoza, providing a detai…
An amateur in a dune buggy found a rival to TyrannosaurusIn 1993 Rubén Carolini was driving a dune buggy through the Patagonian badlands when he spotted a huge leg bone. It belonged to Giganotosaurus, a predator up to about 13 metres lo…
An Amazon-mouth island as large as SwitzerlandMarajó, the chief island of Brazil’s Marajó Archipelago in Pará, covers about 40,100 square kilometres—roughly Switzerland’s size—spanning up to 295 by 200 kilometres at the Amazo…
An Amazonian hunting poison became a cornerstone of modern surgeryCurare paralyses muscles when it enters the blood, yet does nothing when swallowed, so hunters could safely eat the game they shot with poisoned darts. In 1942 the same substance …
An ambitious project to profile every nation on Earth, starting with Brazil's states.Geography Now is the first YouTube channel dedicated to creating comprehensive profiles for every country in the world. This video focuses on the states of Brazil, offering a stru…
An American doctor needs a first degree; a Brazilian one starts medicine straight awayUndergraduate study sounds universal, but its shape changes at every border. In the United States, law and medicine only begin after a bachelor's degree. In Brazil a would-be doct…
An American soldier survived being struck by a live rocket-propelled grenade in Afghanistan.Specialist Channing Moss of the 10th Mountain Division was hit by a live RPG, yet miraculously survived. This account details the harrowing impact and the subsequent high-stakes r…
An amulet wards off evil, but a talisman is meant to attract luckPeople often treat the words as twins, yet they point in opposite directions. An amulet defends its owner against harm, while a talisman is supposed to draw good fortune in. For o…
An analytic function's behaviour in one tiny patch pins down all the restAnalytic functions are the most rigid kind in mathematics. On a connected domain, if one of them hits zero at a cluster of points that pile up around some location, it must be zer…