Intellect PlusCards starting with G
1,125 cards. Page 13 of 19.
Glucose additive helps prevent dendrite growth in zinc-ion batteriesResearchers studying zinc-ion batteries found that adding a low-cost glucose additive to the electrolyte can improve battery stability. By modulating the electrolyte environment, …
Glutamine is the body's most abundant amino acid, but more is not always better.As the most plentiful free amino acid in human blood, glutamine is a metabolic workhorse. It fuels cells, transports nitrogen, and maintains acid-base balance. While essential dur…
Glutathione is your body's essential shield, but you cannot simply swallow it for protection.This powerful tripeptide acts as a master antioxidant, detoxifying harmful metabolites and protecting cellular components from damage. While essential for life, oral supplements o…
Glycine, the simplest amino acid, was first called sugar of gelatinIn 1820 a French chemist boiled gelatin with sulfuric acid and got sweet white crystals he named sugar of gelatin. It was glycine, the smallest amino acid, whose side chain is a l…
GM built over a thousand electric EV1s in the 1990s, then took them backBetween 1996 and 1998 General Motors made 1,117 EV1 electric cars, leasing 800 of them to California drivers. When the leases ran out in 2003, GM recalled and discontinued the car…
GM's founder was a horse-carriage king who once tried to buy FordBy 1900 William Durant ran America's biggest maker of horse-drawn carriages and was not keen on cars. He took over Buick anyway, built General Motors around it in 1908, and a year…
Gmail launched on April Fools' Day with storage rivals thought impossibleGoogle unveiled Gmail on 1 April 2004, offering every user a full gigabyte of storage when competitors handed out a sliver of that. The date made some people think it was a prank.…
GNOME bet that fewer settings make better software, and angered many usersWhile rewriting their Linux desktop, GNOME developers deleted piles of settings on purpose. Havoc Pennington argued that every preference carries a hidden cost, so software should…- GNSS turns orbiting clocks into a global gridSatellite navigation uses spacecraft to fix positions on Earth. A GNSS offers worldwide coverage; regional augmentation systems such as Japan's QZSS, India's GAGAN, and Europe's E…
GNU is a recursive acronym for a project that is not actually UnixBorn from a frustration with proprietary software at MIT, the GNU Project sought to recreate a lost culture of sharing. By building a free, Unix-like operating system from scratch…
Go behind the lens of a professional cookbook author's food photography session.J. Kenji López-Alt shares his process for capturing food photography while preparing a bowl of buttered oyster sauce noodles for his upcoming cookbook. This look inside his studio…
Go behind the scenes at Harvard's world-renowned introduction to computer science.Join Professor David J. Malan and Yuliia Zhukovets as they host a candid Q&A session directly from the CS50 office. This video offers a rare look at the team behind Harvard Univer…
Go behind the scenes at the world's most remote astronomical observatories in Chile.Explore the European Southern Observatory's 60th anniversary virtual tour. This live guided experience takes you from the integration hall in Germany to the harsh, remote desert l…
Go behind the scenes at United Launch Alliance to see how rockets are built.This video provides an inside look at the United Launch Alliance factory. It explores the manufacturing processes behind their launch vehicles and introduces the Rocketbuilder too…
Go behind the scenes of Harvard's iconic introduction to computer scienceJoin Professor David J. Malan and Carter Zenke for a live look at the intellectual foundations of programming. This recording from Harvard's Science and Engineering Complex offers…
Go behind the scenes of NASA's mission to return space samples to Earth.This episode of NASA Explorers documents the complex process of returning extraterrestrial samples to our planet. It highlights the collaborative effort between scientists, produc…
Go behind the scenes of NASA's mission to study a near-Earth asteroid.This episode of NASA Explorers documents the complex preparations required to study an asteroid. It highlights the collaborative effort between scientists, operations teams, and v…
Go behind the scenes of the complex manufacturing process at the Kodak factory.This video continues a deep dive into the Kodak film production facility. It explores the technical quality control measures and the chemical foundations required to manufacture p…
Go behind the scenes to see the rare, real skull of Sophie the Stegosaurus.Host Conor O'Keeffe and palaeontologist Professor Paul Barrett take viewers into the basement of London's Natural History Museum. This exclusive tour reveals dinosaur specimens ra…
Go inside a Pennsylvania workshop to see how custom kitchen wood elements are crafted.Host Kevin O’Connor visits a rural Pennsylvania factory to observe master woodworker Paul Grothouse. This video provides a look at the fabrication process for custom kitchen featu…
Go’s 19-by-19 grid is older than most kingdomsGo—also Weiqi or Baduk—is a two-player abstract game of fencing off territory with stones. Invented in China more than 2,500 years ago, it was one of four arts expected of scholar…
Goat cheese is an ancient, resilient staple that shaped human history across rugged landscapesGoats were among the first animals domesticated for food, thriving in harsh environments where cattle could not survive. Their milk, rich in medium-chain fatty acids, gives goat c…
Goat-Water: Congo’s diamond city once called BakwangaMbuji-Mayi, capital of Kasai-Oriental in the south-central DRC, is often ranked the country’s second-largest city after Kinshasa—ahead of Lubumbashi and Kisangani. Known as Bakwan…
Goats were among the first livestock—and still climb trees to browseDomestic goats descend from wild Capra aegagrus of Southwest Asia and Eastern Europe, herded in Iran roughly ten thousand years ago. By twenty twenty-two more than one point one b…
Göbekli Tepe is nearly twelve thousand years oldThe land of today’s Republic of Turkey holds some of humanity’s earliest farming and ritual sites. Göbekli Tepe is close to twelve thousand years old; Çatalhöyük and Alaca Höyük m…
Gobies are tiny bottom fish that diversified through an extinctionGobioidei packs about two thousand two hundred eleven species across seven families—one of the richest ray-finned assemblages. Mostly small, big-headed bottom dwellers without a g…
Godard shot Breathless like a newspaper, then cut it like a feverIn twenty-three chaotic days in 1959, Jean-Luc Godard turned a real car-theft killing into a jump-cut crime romance. Jean-Paul Belmondo and Jean Seberg wandered Paris with almost …
Godavari drains a tenth of India yet starts 80 km from the seaIndia’s second-longest river after the Ganges, the Godavari runs 1,465 kilometres from Trimbakeshwar near Nashik, which lies only about 80 kilometres from the Arabian Sea. Instead…
Godefroid Kurth: The Belgian historian who bridged romantic storytelling and rigorous technical science.Godefroid Kurth was a paradox: a romantic writer with a flamboyant style who simultaneously pioneered the scientific method in Belgian history. From his early dissertation on Cato…- Godzilla almost began life as a giant octopus rather than a dinosaurToho's 1954 Godzilla rose from the wreck of a cancelled co-production, and its effects chief first pitched an enormous octopus. The finished film, a sombre story of a monster born…
Godzilla was a man in a suit stomping a miniature city, by designJapan's special-effects tradition, tokusatsu, rests on a gloriously physical trick: put an actor in a monster costume, surround him with scaled-down buildings and film from just t…
Godzilla: The Radioactive Metaphor That Evolved From Atomic Nightmare to Global Pop IconBorn from the trauma of nuclear testing, Godzilla began as a terrifying embodiment of atomic destruction. Over seven decades, this prehistoric monster has shape-shifted from a vil…
Godzilla's name blends the Japanese words for gorilla and whaleGojira fuses gorira, gorilla, with kujira, whale, hinting at a creature of vast size and ocean origins. Since 1954 that monster has starred in 38 films, 33 of them from Toho, and …
Goethe once met himself on the road, wearing clothes he didn't ownRiding away from a lover in Alsace, Goethe saw in his mind's eye a rider coming towards him: himself, dressed in grey trimmed with gold. Eight years later he found himself on that…
Gog and Magog started as a man and his land, then became end-time hordesIn the Book of Ezekiel, Gog is a ruler and Magog is his country. Over the following centuries the pair merged into a single menacing phrase, were walled off by Alexander the Great…
Gogol burned Dead Souls’ sequel as a devil’s prankUkrainian-born Nikolai Gogol (1809–1852) turned bureaucratic Russia grotesque—then, after Jerusalem pilgrimage, feared damnation. On the night of 24 February 1852 he burned most o…
Goguryeo: The Ancient Korean Kingdom That Once Dominated Northeast AsiaSpanning from 37 BC to 668 AD, Goguryeo was a formidable power that shaped the Korean peninsula and Manchuria. Beyond its military might and vast territorial reach, this kingdom l…
Goiânia: A Planned Brazilian Metropolis Born from the Need to Modernize the InteriorFounded in 1933 to replace an aging colonial capital, Goiânia was designed as a modern administrative hub. While its original art deco core remains a testament to its planned orig…
Goiás: The Brazilian Heartland That Transformed From Gold Rush Outpost to Modern PowerhouseOnce a remote interior frontier defined by 17th-century gold hunters, Goiás has evolved into a vital agricultural and industrial engine. By hosting the nation’s capital, Brasília,…
Goji's superfruit fame rests partly on a man said to have lived 256 yearsOne marketing booklet claimed a Chinese man named Li Qing Yuen ate wolfberries daily and lived from 1677 to 1933. That tale, along with a false claim about cancer research, helped…
Gold in the Indus Valley city of Harappa came from Karnataka's minesLong before Bengaluru became India's Silicon Valley, the land now called Karnataka was exporting gold: metal found at Harappa has been traced to its mines, hinting at contact with…
Gold is an extraterrestrial visitor born from stellar explosionsGold does not originate from Earth's rocky crust. This video explores how gold was forged in space during cataclysmic supernovae and eventually made its way to our planet.
Gold leaf is so malleable that artisans have hammered it into near-transparency for millennia.For five thousand years, goldbeaters have transformed solid gold bars into sheets just 100 nanometers thick. This ancient craft, which relies on rhythmic hammering and specialized…
Gold nanoparticles offer highly tunable optical properties for medical imaging and therapyResearchers using mathematical modeling found that gold nanospheres, nanoshells, and nanorods possess unique optical properties. They observed that these nanoparticles can absorb …
Gold rush city that hit 100,000 in a decadeJohannesburg—Jozi, Joburg, the City of Gold—is Gauteng's capital and South Africa's largest city. The 2022 census gave the metro municipality about 4.8 million people and the wide…- Gold stays shiny because it barely wants to bond with oxygenGold pulled from a riverbed after thousands of years still gleams, because it has almost no appetite for oxygen; its oxides are so unstable they fall apart on their own. That aloo…
Gold-rush speculators staked Denver on a South Platte bluffDenver is Colorado’s capital and largest city, a consolidated city-county in the South Platte valley about twelve miles east of the Rockies’ foothills. Named for Kansas Territory …
Gold, Uitlanders, and a war that invented campsFrom 1899 to 1902 the British Empire fought the South African Republic and Orange Free State over influence in Southern Africa. Witwatersrand gold had drawn British Uitlanders who…- Golda Meir: The Iron Lady who secured the funds that made Israel possibleBorn in Kiev and raised in Milwaukee, Golda Meir rose from a schoolteacher to Israel’s first female prime minister. While her legacy remains deeply controversial, her early diplom…
Goldbach's simple claim about even numbers has resisted proof since 1742Take any even number above 2 and you can apparently split it into two primes: 4 is 2 plus 2, 10 is 3 plus 7. Computers have confirmed this for every even number up to 4 times 10 t…
Golden algae are not just plants, but a complex group with a hidden history.Often found in freshwater, golden algae are a diverse group of organisms that defy simple categorization. Once mistaken for cyanobacteria, these algae possess a fascinating evolut…
Golden Goa: How a tiny coastal enclave became the center of a global empireFor over four centuries, Goa served as the crown jewel of Portugal’s eastern empire. From its bustling bazaars filled with Chinese silk and African gold to its viceregal courts, t…
Golden mountains where four nations and two rivers meetThe Altai Mountains rise where Russia, China, Mongolia, and Kazakhstan converge, cradling headwaters of the Irtysh and Ob. Belukha tops the system at 4,506 metres. The name’s Turk…
Golden staph lives quietly in millions of noses until it finds an openingA large share of people carry Staphylococcus aureus in their nostrils or on their skin without ever noticing. The same golden-coloured bacterium is among the five most common caus…
Golden surface racers that can outpace fifty knotsMahi-mahi—Hawaiian for “very strong”—are Coryphaena hippurus, surface hunters of warm seas worldwide, also called common dolphinfish or dorado. They are not related to marine mamm…
Golden-mouthed John preached from Antioch to ConstantinopleJohn Chrysostom (about 347–407)—the name means golden-mouthed—was archbishop of Constantinople and a Church Father famed for preaching. Eastern Christians rank him among the Three…
Goldenrod takes the blame for hay fever that ragweed actually causesGoldenrod blooms bright yellow in late summer, right when noses start running, so it gets blamed. The real culprit is usually ragweed, flowering at the same time and scattering li…
Goldfish have surprisingly sharp memories and can even learn to play soccerContrary to the popular myth that goldfish have three-second memories, these fish are capable of complex learning and long-term retention. This video explores the cognitive abilit…
Goldfish remember for months and see four primary coloursCarassius auratus began as Chinese carp mutations more than a thousand years ago and became one of the world's favourite aquarium fish. Selective breeding under Song and Ming cour…
Goldie Hawn turned a 'dumb blonde' giggle into an Oscar on her first major filmGoldie Hawn trained as a dancer from the age of three and was working as a go-go dancer in New York before television found her. Cast as a scatterbrained blonde on Laugh-In, she u…