Intellect PlusCards starting with W
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Which rifles defined the British infantry experience during the First World War?This special feature explores the primary rifles issued to British forces during the Great War. Featuring expertise from C&Rsenal, the video examines the technical and historical …
Which roles in the Vietnam War carried the highest risk of death?The Vietnam War was a protracted conflict spanning jungles, skies, and underground tunnels. While all combatants faced danger, certain roles were significantly more perilous than …
Which scientific measurements have unlocked the secrets of our universe?Explore the specific measurements that have empowered mathematicians and scientists to make incredible discoveries and deepen our understanding of how the universe operates.
Which shoulder carries an aide-de-camp's gold cord tells you whom they serveAn aide-de-camp, French for helper in the military camp, is the personal assistant to a general, governor or monarch. Their badge is a braided cord called an aiguillette. In Canad…
Which snake holds the title for the world's most venomous species?Natural History Museum herpetologists Dr. Jeff Streicher and Dr. Ian Brennan address common inquiries about snakes, including identifying the most venomous species and exploring o…
Which sub-$30,000 performance car offers the best engineering value?This video evaluates four distinct vehicles—the 2015 Subaru WRX, Ford Mustang EcoBoost, Volkswagen GTI, and Scion FRS—to determine which delivers the superior driving experience f…
Which unusual creatures would David Attenborough choose for his personal ark?In this selection from BBC Earth, David Attenborough identifies ten favourite animals he would most like to protect from extinction, ranging from the wonderful to the truly weird.
Which V6 sedan offers better engineering: Nissan Maxima or Chrysler 300?This technical comparison examines the 2016 Nissan Maxima Platinum against the 2015 Chrysler 300C. We analyze how their different engineering approaches affect everything from cha…
Which water filtration system is right for your home's specific needs?From simple pitchers to advanced reverse-osmosis setups, the right filter depends on your goals. Whether you want to improve taste or treat every faucet in your house, understandi…
Which World War II battleships are actually overrated despite their legendary reputations?Naval historian Dan Snow evaluates iconic World War II battleships by analyzing their technical specifications, historical significance, and overall impact. This exploration provi…
While Alexander Fleming discovered penicillin, Howard Florey turned it into a life-saving medicine.Alexander Fleming observed a mold killing bacteria in 1928, but he could not isolate the active substance. It took an Australian pathologist, Howard Florey, and his team at Oxford…
While Armstrong and Aldrin walked the Moon, a Soviet probe crashed nearbyThree days before Apollo 11 launched, the Soviet Union sent an uncrewed probe, Luna 15, to scoop up lunar soil and beat the Americans home with it. It reached orbit first. On July…
While being Prussian constitutes an honour, it lacks any joyThe Prussian virtues were more than just military discipline; they were a complex social architecture built on the tension between religious piety and Enlightenment reason. These …
While Chlamydia is a common infection, its bacterial relatives may have enabled complex life.We typically associate Chlamydiae with the well-known sexually transmitted infection that causes symptoms like discharge, pain, and potential long-term complications if left untre…
While climate denotes anticipated conditions, weather describes the actual experienceIf weather is the outfit you wear today, climate is the entire wardrobe you own. It is the long-term summation of atmospheric elements—temperature, humidity, and precipitation—ove…
While dinosaurs ruled the land, a unique group of crocodiles conquered the oceans.The metriorhynchids were a specialized group of ancient crocodiles that successfully transitioned to a fully aquatic lifestyle. This video explores the evolutionary adaptations re…
While English dominates, the United States is home to over 400 spoken languages.Though 77% of Americans speak only English at home, the nation hosts a vast linguistic tapestry. From indigenous tongues nearly erased by history to the surge of languages brought…- While mythical unicorns are absent, Earth hosts several remarkable one-horned creatures.Although the legendary unicorn does not exist, nature features various animals possessing a single horn. This video examines these real-world biological examples, showcasing how t…
While outbreaks cause significant chaos, they do not last forever; here is how.Outbreaks bring devastation, but they eventually conclude. This video explores the essential tools used in outbreak response, specifically focusing on the role of vaccines and the…
While socialists plead for peace in Switzerland, the Great War accelerates across three fronts.In the fifty-ninth week of the Great War, a stark disconnect emerged between political idealism and military reality. As socialist leaders gathered in Switzerland to advocate for …
While you sleep, your brain rinses itself.In 2013, researchers found that in sleeping mice the spaces between brain cells widened by about 60 per cent, letting cerebrospinal fluid flush through and wash out waste, includi…
Whip spiders walk on six legs and feel their way with two absurdly long whipsAmblypygids look like nightmares, flat-bodied arachnids with spiny grabbing arms and front legs stretched into feelers up to 60 centimetres long. Yet they have no venom and no sil…
Whiplash is not just one villain, but a rotating mantle of technological vengeance.The name Whiplash has been claimed by multiple characters across Marvel Comics, each wielding distinct, lethal weaponry. From disgruntled engineers to mutant assassins and Russian…
Whiskered, scaleless fish rule mud bottoms and fish farmsCatfish—order Siluriformes—take their name from barbels that look like whiskers, though not every species flaunts them. All lack true scales, wearing naked skin, mucus for cutaneo…
Whiskers are touch antennas evolution bolted onto mammal facesVibrissae—whiskers—are specialized sensory hairs that let most mammals detect air currents and objects for navigation, hunting, and spatial sense. They cluster above eyes, on chin…
Whistler insisted his famous mother portrait was really an arrangement of grey and blackJames McNeill Whistler titled his 1871 painting Arrangement in Grey and Black and was irritated when people treated it as a portrait. Victorian viewers wanted to know who the sitt…- Whistler signed paintings with a stinging butterflyJames Abbott McNeill Whistler (10 July 1834 – 17 July 1903) left America for Europe and preached art for art's sake. He titled canvases arrangements, harmonies, and nocturnes, sig…
Whistler: From a quiet mountain pass to a world-class Olympic resort destinationBefore it became a global hub for alpine sports, Whistler was a rugged wilderness known to the Lilʼwat and Squamish Nations. Today, this resort municipality balances its high-alti…
Whistling pink inhabitants living on a hollow, musical moon-like planetIn 1969, as humans first stepped onto the Moon, a family of knitted creatures was beginning their own lunar journey. Living inside a small, hollow planet, the Clangers communicate…
White blood cells defend us, but sometimes they weaponize their own DNA against us.Your immune system is a sophisticated defense force, but it occasionally employs a high-stakes tactic that can backfire. While white blood cells are essential for neutralizing thr…
White Castle pioneered the fast-food model, yet remains a fiercely independent family-owned business.Founded in 1921, White Castle is widely credited as the world's first fast-food hamburger chain. While competitors scaled through aggressive franchising and public markets, the In…- White Castle sold five-cent burgers before McDonald’sBilly Ingram and Walter Anderson’s White Castle, opened in Wichita in 1921 after Anderson’s 1916 prototype, is widely credited as the first hamburger chain—limited menu, visible c…
White cells live in the buffy coat between reds and plasmaLeukocytes—white blood cells—defend against infection and foreign matter, generally larger than red cells, in three main groups: granulocytes, lymphocytes, and monocytes. All aris…
White grapes are really purple grapes with two genes switched offEvery green 'white' grape descends from a purple ancestor. Mutations in two regulatory genes shut down the pigments that colour red wine, leaving pale fruit behind. That is just o…
White LED lighting had to wait decades for someone to crack blueRed LEDs glowed on gadgets for decades, but bright white lighting needed a blue one, and blue proved stubbornly hard. When Shuji Nakamura, Hiroshi Amano and Isamu Akasaki finally …
White Lightning: the zinc-smeared quick who spearheaded South Africa's returnAllan Donald was supposed to be twelfth man on his first-class debut, called up ten minutes before the toss. Six years later he took five wickets in South Africa's first ever one-…- White matter keeps maturing until middle age, long after grey matter peaksWhite matter was long dismissed as passive packing, yet its fatty, insulated fibres shape learning by relaying and coordinating signals between brain regions. One small study meas…
- White peacocks are not albinos, and neither is the ash-grey albino gaurPlenty of pale animals get called albino without deserving it. White peacocks, swans and geese carry a gene for white feathers rather than lacking melanin, and the so-called albin…
White Sheep Turkomans once ruled from Anatolia to OmanThe Aq Qoyunlu—“those with white sheep”—were a Sunni Turkoman confederation, culturally Persianate, that held eastern Anatolia from 1378 to 1508 and, under Uzun Hasan, spilled int…
White storks fly around the Mediterranean because warm air will not lift them over waterA white stork flying from Europe to Africa for winter will not take the short route across the Mediterranean. It relies on rising thermals to soar with little effort, and those co…
White wine is not just for white grapes, and its history spans four millennia.White wine is defined by what it lacks: skin contact. While often associated with light, refreshing profiles, this ancient beverage has been shaped by everything from the Catholic…
White, red and black mulberries are named for their buds, not their fruitThe three best-known mulberries take their colour names from dormant buds, so a white mulberry can bear dark fruit. Fruit colour and leaf shape are useless for telling species apa…
Whitebait is not a single species, but a culinary term for immature fish fry.Across the globe, whitebait refers to the tiny, tender fry of various fish species. While often treated as a delicacy, this collective label masks a complex ecological reality. Fr…- Whiteflies slip through greenhouse mesh too fine for their own predatorsAleyrodidae—the sole family in Aleyrodoidea—are tiny hemipterans that usually suck from leaf undersides. Most sport wingspans under 3 mm and bodies 1–2 mm long, so small that gree…
Whitney’s 1960s math films and Sketchpad opened digital artDigital art uses computational tech in making or showing work—also called computer or electronic art since the 1960s. John Whitney pioneered computer-generated imagery with mathem…
Who actually controls the agenda within the halls of Congress?This video examines the complex leadership hierarchy of the United States Congress. You will learn how specific roles, from the Speaker of the House to the party whips, shape legi…
Who actually controls the American economy and how do they get the job?The Chair of the Federal Reserve is the most powerful economic figure in the United States, yet their role has evolved significantly since 1913. Nominated by the president and con…- Who actually decides which new emojis appear on your smartphone keyboard every year?Ever wonder how a new emoji makes it onto your screen? It is not a random occurrence but a highly regulated procedure managed by the Unicode Consortium. This Silicon Valley non-pr…
Who actually directed the 1982 horror classic Poltergeist: Tobe Hooper or Steven Spielberg?The 1982 film Poltergeist is a celebrated horror staple, yet its production remains shrouded in debate over authorship. While Tobe Hooper is officially credited as director, Steve…
Who actually gains when an economy opens its borders to international trade?This lecture examines the distributional consequences of trade liberalization. It investigates whether capital owners or wage laborers benefit most from open markets and explores …
Who actually gains when prices rise or fall?Understanding inflation and deflation is about more than just price tags; it is about identifying who wins and who loses in a shifting economy. This lesson breaks down the fundame…
Who actually holds the authority to define and speak for a religion?Religious leaders like priests, imams, rabbis, and gurus significantly shape modern faith. This video examines the nature of religious leadership and explores how individuals can …
Who actually holds the power of the British Crown in the modern era?Royal prerogative powers date back to the Middle Ages, but today they are largely wielded by government ministers rather than the monarch. While these powers once defined absolute…
Who actually holds the reins of power in our modern globalized society?Sociologists and philosophers have long debated the nature of the ruling class, those who dictate the political and economic agenda. From feudal lords to the modern bourgeoisie, t…
Who actually invented the cheeseburger? The history is as messy as the meal.The cheeseburger is a staple of American dining, yet its origins are fiercely contested. While many claim the title of inventor, the truth is buried in a century of competing pate…
Who actually owns the assets in a trust? It depends on the legal structure.A trust beneficiary is not just a passive recipient of funds. Depending on the trust type, they may hold a proprietary interest, a contingent claim, or a right to information. Und…
Who actually owns the internet you use every day?As large corporations and governments tighten their grip on the web, digital privacy and information access are under threat. Web developer Tamas Kocsis explores how a decentraliz…
Who actually painted the magnificent private tombs of ancient Thebes?For years, historians assumed the skilled workmen living in Deir el-Medina were the primary creators of the nearby elite Theban Necropolis. This lecture challenges that assumption…
Who actually pays for a contract killing on the dark web?Researcher Carl Miller spent years investigating dark web kill orders. In this talk, he reveals the unsettling reality behind these digital requests, showing how seemingly ordinar…
Who actually pays for those tiny paper cups of joy at Costco?Costco samples are a staple of the warehouse experience, but the economics behind these free bites remain a mystery to most shoppers. This video examines the logistics of the samp…