Intellect PlusCards starting with F
10,056 cards. Page 26 of 168.
Five wars over two centuries reshaped the map of the Caucasus and Caspian Sea.Between 1651 and 1828, Russia and Persia fought five distinct conflicts over control of the Caucasus. Driven by trade ambitions and shifting alliances with the Ottoman Empire, the…
Five ways the universe might end and what that means for our present livesCosmologist Katie Mack joins host Debbie Millman to discuss the ultimate fate of the cosmos. From the lingering glow of the Big Bang to the five potential scenarios for the end of…
Five years for Madame Bovary—and a trial for immoralityGustave Flaubert (1821–1880), Rouen-born son of a hospital surgeon, became French realism’s emblem. Madame Bovary took five years, appeared in the Revue de Paris in 1856, and land…
Five years on the throne, and Sher Shah left India the rupeeSher Shah Suri ruled northern India for barely five years, from 1540 to 1545, after chasing the Mughals out. In that time he issued the first rupiya coin, organised a postal netwo…
Five-on-five hoop sport runs on dribbles and shotsBasketball sends two teams of five onto a rectangular court to put a ball through the opponent's elevated hoop. Players advance by dribbling or passing, and positions stretch from…
Fix your crumbling flagstone walkway without the mess of traditional mortarLandscape contractor Roger Cook demonstrates a practical method for repairing mortared flagstone walkways. Instead of mixing new mortar, this approach uses a specialized adhesive …
Fixing a leaky kitchen sink trap without calling a plumberA leaky, glued-together sink trap can be a frustrating household nuisance. This guide from This Old House demonstrates how to properly remove and replace a faulty PVC assembly usi…
FLAC is the gold standard for preserving digital audio without losing a single bit.Unlike lossy formats that discard data to save space, FLAC offers perfect, bit-for-bit reconstruction of original audio. Developed as an open, royalty-free standard, it shrinks fi…
Flagellates swim with microtubule whips built nine-plus-twoA flagellate is a cell or organism bearing one or more whip-like flagella, also naming a body plan common among protists. Eukaryotic flagella ride microtubules in a nine fused pai…
Flamenco named Paco de Lucía for his Portuguese motherFrancisco Gustavo Sánchez Gómez (1947–2014), youngest of five in Algeciras, took the stage name from Lucía Gomes. Street Pacos needed nicknames; his picado runs and rasgueado cont…
Flamethrowers, prisoner protocols, and the evolution of artillery fuzes in the Great WarThis episode examines the tactical deployment of flamethrower units, the evolving standards for handling prisoners of war, and the technical development of artillery fuzes during …
Flamingo Road: The 1980s soap opera that turned small-town corruption into high-stakes dramaSet in the fictional town of Truro, Florida, Flamingo Road followed the wealthy Weldon family and their entanglement with a corrupt sheriff. Though short-lived, this prime-time so…
Flamingos are pink because of what they eat: carotenoid pigmentsThe orange of carrots, the red of tomatoes and salmon, the yellow of egg yolks and the colour of flamingo feathers all come from one pigment family. More than 1,100 carotenoids ar…
Flanders is a language, a region, and a medieval county at onceFlanders names Dutch-speaking northern Belgium—and several overlapping cultural, political, and historical zones that sometimes spill into France and the Netherlands. Most Fleming…
Flannery O'Connor: The Southern Gothic master who found grace in the grotesqueFlannery O'Connor transformed the American short story by blending sardonic humor with a profound, unyielding Catholic faith. Though she lived a secluded life in Georgia while bat…
Flash memory stores data by trapping electrons inside an insulated floating-gate transistor.Invented at Toshiba in 1980, flash memory revolutionized storage by allowing data to be electrically erased and reprogrammed. It relies on floating-gate MOSFETs, where electrons a…
Flat-land capital legend-dated to Tan'gun's 1122 BCEPyongyang is North Korea's capital and largest city, with 3,255,288 people in the 2008 census on the Taedong River. Legend founds it in 1122 BCE at Tan'gun's capital site; the Sin…
Flat, triangular silver nanoparticles kill E. coli most effectivelyResearchers testing silver nanoparticles of different shapes against the bacterium E. coli, both in liquid and on agar plates, found that one shape stood out: thin, triangle-like …
Flat, unit, mansion: one dwelling, many name tagsAn apartment—or flat, or unit—is a self-contained home inside a larger building. Tenure spans public housing, condominiums, cooperatives, leaseholds, and private rentals. Elevator…
Flatbush Misdemeanors captured the raw, unforced reality of Brooklyn life in two short seasonsCreated by Kevin Iso and Dan Perlman, this comedy series evolved from a 2017 digital project into a critically acclaimed television show. It follows two friends navigating the bra…
Flatulence: The Natural Science Behind Passing GasFrom 'cutting the cheese' to 'toots,' the act of passing gas is universal, natural, and surprisingly scientific. While often treated as a source of awkward humor, flatulence is a …- Flatworms skip lungs and hearts, so they stay thinPlatyhelminthes—flatworms—are soft, unsegmented bilaterian invertebrates whose Greek name means flat parasitic worm. Traditional texts split mostly free-living Turbellaria such as…
Flaubert's protégé perfected the ruthless short storyGuy de Maupassant (1850–1893) remains France's short-story benchmark: lean prose, clean endings, often set in the Franco-Prussian War's shadow. His mother introduced him to Gustav…
Flavius Josephus coined 'theocracy' to describe a people ruled directly by GodIn the first century AD, Flavius Josephus observed that most governments fit into monarchy, oligarchy or democracy, but argued the Jewish polity fitted none of them. He coined the…- Flavor is more than just taste; it is a sensory conspiracy.When you bite into a strawberry, you might miss its true essence if your nose is blocked. Flavor is not a single sensation, but a complex orchestration of taste, aroma, and textur…
Fleas jump 18 centimetres up yet never grew wingsFleas—order Siphonaptera—number about 2,500 species of tiny flightless insects that drink blood from mammal and bird hosts. Genetics nest them among parasitic scorpionflies. The o…- Fleming named penicillin in 1929 for a mould’s antibacterial juicePenicillins are β-lactam antibiotics first drawn from Penicillium moulds, chiefly P. chrysogenum and P. rubens. Alexander Fleming noticed the crude extract in 1928 and coined the …
Fleming paid lab staff threepence per tear, years before penicillinIn 1921 Alexander Fleming noticed that a drop of his own runny-nose mucus dissolved bacteria on a culture plate. To test other fluids, his team spent weeks squeezing lemons into t…
Flemish Brabant: The Belgian province that wraps around a capital cityCreated in 1995, Flemish Brabant is a unique administrative entity that encircles the Brussels-Capital Region. It serves as a vital economic hub, housing Belgium's primary airport…
Flemish settlers once filled the Azores and half of an English portFrom 1460 about 2,000 Flemings settled the newly found Azores, which became known as the Flemish Islands, and the city of Horta takes its name from a Flemish explorer. Back in Eur…
Flerovium: The volatile, potentially gaseous metal that defies the rules of the periodic table.Flerovium is a superheavy, synthetic element that sits beneath lead in the periodic table, yet it behaves more like a noble gas. Produced one atom at a time, this radioactive enig…
Flesh flies skip the egg stage and deliver live maggotsMost flies lay eggs, but flesh flies are ovoviviparous: the female deposits larvae that have already hatched or are hatching. Their family name, Sarcophagidae, joins Greek words f…
Fleshy-finned fish that invented the road to landSarcopterygii—from Greek flesh and fin—are lobe-finned vertebrates whose fins hold muscular limb buds and internal bones, unlike ray-fins. Appearing in Silurian–Devonian seas, mos…
Fleury: A French village with a mayor but zero inhabitants after the Great War.This video explores the haunting remains of Fleury, a French village obliterated during the Battle of Verdun. By walking the cratered landscape, the presenter illustrates how a pl…
Flickr grew out of tools built for a shelved online gameVancouver's Ludicorp was building a browser game called Game Neverending when its photo-sharing tools looked more promising than the game itself. Flickr launched on February 10, 2…
Flight is not instinctive for parrots, so you may need to teach them how.Many parrots never learn to fly because they were clipped as babies or lack experience. Contrary to popular belief, flight is a learned skill that requires practice and muscle dev…
Flint helped define the Stone Age, yet nobody is sure how it formsPeople have been shaping flint into tools for more than three million years, and its toughness means those tools survive to be dated. It starts fires, fired flintlock guns and was…
Flintheart Glomgold: The Broken Mirror of Scrooge McDuck’s Unrelenting AmbitionCreated in 1956 by Carl Barks, Flintheart Glomgold serves as the ultimate foil to Scrooge McDuck. While both share a ruthless drive for wealth, Glomgold lacks Scrooge’s moral code…
Flip a coin, step left or right, and discover why gamblers always go brokePut a marker at zero, flip a fair coin, and move one step right for heads or left for tails. Keep going forever and the marker will revisit every point on the line infinitely ofte…
Flipping a matrix across its diagonal reveals surprisingly deep propertiesTake a grid of numbers and mirror it across the line running from top left to bottom right, so rows become columns. That simple move, the transpose, was introduced by Arthur Cayle…- Flirting is not a game of manipulation but a genuine path to human connection.Love coach Francesca Hogi reframes flirting as a tool for authentic interaction rather than a shallow or creepy tactic. This talk provides a fresh perspective on building confiden…
Floating 400km above Earth without leaving your living roomThe International Space Station is the most complicated machine ever built, yet you can now orbit Earth alongside it. Using virtual reality, you can navigate zero-gravity modules …
Floating golden forests are vital to marine life but can become a coastal hazardSargassum, a drifting brown algae, serves as a crucial nursery for sea turtles and fish in the open ocean. Yet, when wind and currents push these massive mats toward land, they cr…
Floating hospitals have protected sailors and soldiers for over three centuries of naval historySince the 17th century, navies have repurposed vessels into floating medical facilities. From early converted warships to modern steel liners, these ships have evolved from basic …
Floating ice shelves act as brakes on the glaciers behind themAn ice shelf is a slab of glacier ice, up to a kilometre thick, floating on the sea while still attached to land. It looks passive, but it holds back the glaciers feeding it. When…
Floating islands are not just myths; they are drifting ecosystems that reshape our waters.From the ancient reed villages of Lake Titicaca to modern, engineered rafts cleaning urban rivers, floating islands are a strange, dual reality. Whether formed by volcanic pumice,…
Floating-world prints were merchant-class home décorUkiyo-e means pictures of the floating world—not courtly myth, but kabuki stars, courtesans, and travel views bought by Edo merchants legally ranked at society's bottom. Full-colo…
Flocculation is the invisible force that cleans our water and makes our beer.From the clarity of your drinking water to the perfect pint of ale, flocculation is the essential process of clumping microscopic particles into larger clusters. By encouraging th…
Floor hockey is a diverse family of indoor games, not just one sport.From gym class staples to Special Olympics events, floor hockey encompasses everything from wheeled inline skating to games played with felt donuts. While often confused with ring…
Floral design is an ancient art form governed by precise principles and elementsFloral design is more than just putting flowers in a vase. It is a disciplined art form that balances structural elements like line and color with principles such as rhythm and pr…
Florence built a cathedral with a gaping hole where its dome should beBy the early 1400s Florence's cathedral had been rising for a century, yet it still had no roof over its crossing. The planned octagonal dome was wider and taller than anything ev…
Florence exiled Cosimo de' Medici, and then its money followed him outIn 1433 Florence's rulers jailed Cosimo de' Medici and then banished him; some rivals wanted him executed. He moved to Venice and took his bank with him. So much capital drained o…
Florence Welch: How a self-described fantasist turned childhood isolation into global indie rock successBefore topping charts, Florence Welch was a self-described fantasist and introverted child who found solace in books and music. Diagnosed with dyslexia and dyspraxia, she channele…
Florence's 1598 Dafne lit the fuse for sung Western dramaOpera is Western theatre in which music is fundamental and singers carry the dramatic roles; the Italian word simply means work. It began in late sixteenth-century Italy with Jaco…
Florence's gold florin once financed kings, popes, and warsLate medieval Florentine bankers backed English kings in the Hundred Years' War and underwrote papal projects from Avignon to Renaissance Rome. Many scholars call the Arno city th…
Florence's town hall may hide a lost Leonardo behind its wallsFlorence's Palazzo Vecchio began in 1299 as a defensible seat for the city's magistrates, built over the razed homes of a rebel family. It has jailed Cosimo de' Medici and Savonar…
Florence's Uffizi began as Medici offices, not a museumVasari's 1560 complex for Cosimo I packed republican committees into one building—uffizi means offices. The top floor became a private gallery of Roman sculpture for family guests…
Florence’s dome began with a goldsmith who lost a door contestFilippo Brunelleschi (1377–1446), nicknamed Pippo by Alberti, trained as goldsmith and sculptor before architecture made him immortal. He lost the 1401 Baptistery door contest to …
Florence’s wool bankers funded Michelangelo and popesThe Medici rose from Mugello farmers to Florence’s masters under Cosimo and Lorenzo the Magnificent, turning a 1397 bank into Europe’s envy until 1494. They became Dukes of Floren…
Florentine exile who mapped Hell in Tuscan verseDante Alighieri (c. 1265–1321) wrote the Divine Comedy in vernacular Tuscan when Latin still ruled scholarship—terza rima, Beatrice, and Guelph exile shaping Western art. Boccacci…