ZAP’S FACTS!
← All topics

INVENTIONS & TECH

The bright ideas, accidents and obsessions - from the light bulb to space rockets and smart phones.

50 facts
ZAP’S PICK
A cheerful blue robot sits at a table, eagerly reading a large book, surrounded by tall stacks of colorful books, with a…
ROBOTS & AI

Chatbots learn to write by reading huge piles of human writing.

A large language model is trained on millions of books, articles and websites - then guesses the most likely next word, over and over.

READ THE FULL FACT ▸

MORE INVENTIONS & TECH FACTS

49 facts
A colorful robot with a red chest and blue limbs strikes a dynamic dance pose against a bright blue background.
DID YOU KNOW? A robot called Atlas can do backflips and dance. Boston Dynamics builds humanlike robots that run, jump, parkour and even break-dance - and they keep their balance when shoved. 2 min read
A cheerful robot taxi driver with a blue head and a smiling passenger wave from a bright yellow taxi against a dotted orange…
DID YOU KNOW? There are taxis in some cities that drive themselves. Self-driving robotaxis in Phoenix, San Francisco and Beijing pick up passengers with no human in the driver's seat at all. 2 min read
A cheerful cartoon rover with a solar panel and antenna rolls across a red Martian landscape under a bright yellow sky.
DID YOU KNOW? Robots have been driving around Mars for over 25 years. NASA has landed five rovers on Mars - one of them, Opportunity, lasted 14 years on a 90-day mission. 2 min read
A cheerful robot with a computer screen for a head plays Go against a puzzled boy, who scratches his head in confusion.
DID YOU KNOW? A computer beat a top Go player using moves no human had ever tried. AlphaGo beat the world's best Go player in 2016 - and one of its moves was so strange experts thought it was a bug. 2 min read
A cheerful blue computer smiles at a boy in a red shirt, who looks surprised while pondering a chessboard.
DID YOU KNOW? In 1997 a computer beat the world chess champion for the first time. IBM's Deep Blue defeated Garry Kasparov in a six-game match - and shocked the world. 2 min read
A blue robot in a green helmet uses a stick to guide a small, round Roomba across a colorful floor.
DID YOU KNOW? The Roomba was designed by ex-military robot engineers. The team that built bomb-disposal robots for the army used the same ideas to design a small disc that cleans your floor. 2 min read
A colorful, retro-style robot with big eyes, a round yellow belly, and red arms stands proudly against a bright yellow…
DID YOU KNOW? The word "robot" comes from a Czech word for forced labor. It was invented for a 1920 play about artificial workers who rise up against their human bosses. 2 min read
A bright orange industrial robot arm with a red claw grips a shiny car part against a playful blue dotted background.
DID YOU KNOW? The first real industrial robot started work in 1961. Unimate was a 4,000-pound metal arm that lifted hot car parts at a General Motors factory in New Jersey. 2 min read
A cheerful figure surrounded by fluffy soap bubbles holds a bar of soap in one hand and a clay jug in the other.
DID YOU KNOW? People have been making soap for at least 4,500 years. Ancient Babylonians boiled animal fat, water and ashes to clean wool - but barely used it on their own bodies. 2 min read
A cheerful pink pig grins while holding a green toothbrush, showcasing its bright white teeth against a sunny yellow…
DID YOU KNOW? The first mass-produced toothbrushes were made with pig hair. For about 200 years, most toothbrushes had bristles plucked from the back of a hog - until plastic finally took over in 1938. 2 min read
A worried boy in a bright red jacket struggles with a stubborn zipper that keeps popping open, looking frustrated.
DID YOU KNOW? The zipper took 30 years to become useful. The first version, invented in 1893, kept popping open at the worst moments - it almost ended up forgotten forever. 2 min read
A cheerful kid in a red cap rides a wooden bicycle without pedals, pushing off the ground with his feet.
DID YOU KNOW? The first bicycle had no pedals. In 1817 a German baron built a wooden "running machine" - you sat on it and pushed yourself along with your feet. 2 min read
A classic Coca-Cola bottle stands beside a shiny vault door, revealing a yellow recipe note with a mortar and pestle inside.
DID YOU KNOW? The recipe for Coca-Cola is locked in a vault. Coke's exact formula is one of the world's best-kept business secrets - supposedly only a couple of people know the whole thing. 2 min read
Two excited inventors proudly display a large sheet of bubble wrap, surrounded by playful blue bubbles in a bright…
DID YOU KNOW? Bubble wrap was first sold as wallpaper. Two inventors stuck two shower curtains together with air bubbles inside - and tried to convince people it was a wall decoration. 2 min read
A surprised scientist with wild blonde hair holds a beaker while colorful Post-it Notes scatter across his lab table.
DID YOU KNOW? Post-it Notes were a glue that didn't work. A scientist trying to make super-strong glue made super-weak glue instead - six years later, it became one of the most useful office products ever. 2 min read
A surprised man with blonde hair holds a melted chocolate bar in front of a bright red microwave, sparks flying inside.
DID YOU KNOW? The microwave oven was invented after a chocolate bar melted in someone's pocket. An American engineer was standing near a radar tube in 1945 when his snack turned to goo - and he realised invisible waves could cook food. 2 min read
A cheerful man holds a roll of Velcro while his happy dog is covered in green burrs, wagging its tail excitedly.
DID YOU KNOW? Velcro was invented after a dog walk. A Swiss engineer kept finding burrs stuck to his dog's fur - and copied their tiny hooks to make the world's grippiest tape. 2 min read
A cheerful old man with round glasses smiles while reading a bright blue book, surrounded by a vibrant yellow background.
DID YOU KNOW? Eyeglasses were invented in Italy more than 700 years ago. Nobody knows the exact inventor, but Italian monks were grinding tiny glass lenses to help old people read by the 1280s. 2 min read
A cheerful boy with a bandage on his arm smiles as a syringe and colorful DNA strands float around him, surrounded by happy…
DID YOU KNOW? mRNA vaccines work by sending your cells a recipe. They don't put a germ into your body - they send a tiny instruction sheet that teaches your cells to make practice targets. 2 min read
A cheerful scientist with scissors prepares to cut a colorful DNA strand, while a cartoon bacterium watches nearby.
DID YOU KNOW? Scientists learned to edit DNA by copying bacteria. CRISPR is a defense system bacteria use against viruses - and now humans use it to rewrite the code of life. 2 min read
A surgeon in scrubs holds a bright red heart above a patient lying on an operating table, surrounded by medical equipment.
DID YOU KNOW? The first human heart transplant happened in 1967. A South African surgeon swapped a heart from a young woman killed in an accident into a 53-year-old grocer. 2 min read
A vibrant blue DNA double helix twists against a bright yellow background, showcasing colorful base pairs in between.
DID YOU KNOW? The twisted ladder shape of DNA was figured out in 1953. It took scientists almost a century to crack the structure that holds the instructions for every living thing. 2 min read
A terrified patient screams as a surgeon in green scrubs prepares to saw off his leg, while an assistant looks on in shock.
DID YOU KNOW? Before anesthesia, surgeons were judged on how fast they could cut. The best 1800s surgeon could amputate a leg in 28 seconds - because the patient was wide awake and screaming. 2 min read
A cheerful boy in a red shirt proudly holds a large blue insulin bottle, smiling against a bright yellow dotted background.
DID YOU KNOW? Insulin turned a deadly disease into one you can live with. Before 1922, kids with type 1 diabetes usually died within a year. Then two Canadian doctors figured out how to bottle insulin. 2 min read
A cheerful scientist in a lab coat holds an X-ray image of a hand, showcasing its bones against a bright blue background.
DID YOU KNOW? X-rays were discovered completely by accident. A German physicist saw a strange glow in his lab in 1895 and ended up taking the world's first photo of bones inside a living hand. 2 min read
A cheerful scientist with curly blonde hair holds a petri dish filled with colorful bacteria, surrounded by beakers of…
DID YOU KNOW? The most important medicine of the 20th century was discovered by a messy scientist. Alexander Fleming left a dish of bacteria out, came back to find mould had killed them - and discovered penicillin. 2 min read
A smiling doctor in a blue coat holds a syringe while a curious boy extends his arm, with a cow showing blisters nearby.
DID YOU KNOW? The world's first vaccine was made from cow blisters. In 1796 a doctor noticed milkmaids never caught smallpox - and used the cow version of the disease to protect a boy. 2 min read
A cartoon detective in a trench coat and hat holds a magnifying glass, pondering a large Bitcoin symbol with a question mark.
DID YOU KNOW? Nobody knows who invented Bitcoin. In 2008 someone called "Satoshi Nakamoto" published the design online, then vanished - and their identity is still a mystery. 2 min read
A colorful vintage typewriter with a QWERTY keyboard and a sheet of paper, set against a bright blue polka dot background.
DID YOU KNOW? The QWERTY keyboard was designed to stop typewriters from jamming. Early typewriter arms jammed when fast typists hit common letter pairs in a row - so the inventor scrambled them apart. 2 min read
A colorful spaceship and a flying saucer zoom through a starry sky, with bright explosions and a green planet below.
DID YOU KNOW? The first real video game was about two spaceships fighting in space. Students built "Spacewar!" on a room-sized computer in 1962 - long before arcades, Nintendo or PlayStation existed. 2 min read
A cheerful Earth character points at a friendly web-suited figure with "WWW" on its chest, surrounded by a laptop, email,…
DID YOU KNOW? The World Wide Web is not the same thing as the internet. The internet is the network. The web is just one of the things that runs on it - like email, video calls and games. 2 min read
A worried blue USB plug faces a yellow USB port, with arrows swirling around them, highlighting the struggle to connect.
DID YOU KNOW? USB plugs feel like they have to be flipped three times to fit. It is a famous joke - but the early USB connector really did only go in one way, and it was easy to get wrong. 1 min read
A cheerful cartoon brain stands triumphantly on top of stacked computer chips, pointing up with a big smile.
DID YOU KNOW? Computer chips have doubled in power roughly every two years for 60 years. It's called Moore's Law - and it's why the phone in your pocket is more powerful than a 1980s supercomputer. 2 min read
A colorful floppy disk with a blue body and red label sits against a bright orange dotted background.
DID YOU KNOW? The save icon on your apps is a tiny picture of a floppy disk. Floppy disks were how people saved files in the 80s and 90s - most kids today have never held one. 1 min read
A chunky wooden block with a red button and a coiled wire tail sits against a bright blue polka-dotted background.
DID YOU KNOW? The first computer mouse was a small wooden block. Douglas Engelbart carved the first mouse in 1964 - it had one button, two wheels, and a long tail of wire. 2 min read
A soldier in a green uniform types on a retro computer displaying "LO," with a globe above it, set against a bright blue…
DID YOU KNOW? The internet started as a military project called ARPANET. The first message sent on the internet was the word "LO" - the computer crashed before it could send "LOGIN". 2 min read
A cheerful scientist in a lab coat stirs a blue bucket labeled "WATER DISPLACEMENT 40TH FORMULA" with red barrels behind him.
DID YOU KNOW? WD-40 is named after 40 failed attempts. The chemist who invented it wrote "Water Displacement, 40th formula" on the bucket - the first 39 mixes did not work. 1 min read
A cheerful boy in a blue shirt excitedly points at a large, colorful vintage computer with glowing buttons and a screen.
DID YOU KNOW? The first general-purpose computer was as big as a small house. ENIAC weighed 30 tons, used 18,000 glowing tubes, and was less powerful than the cheapest calculator you can buy today. 2 min read
A smiling man in a blue suit and red bow tie proudly holds a glowing light bulb, surrounded by three curious onlookers.
DID YOU KNOW? Thomas Edison did not invent the light bulb alone. At least 20 inventors made electric light bulbs before Edison - he made one that lasted long enough to actually sell. 2 min read
A cheerful kid in a red shirt pulls on a rope connected to a yellow fridge, using a system of three pulleys to lift it…
DID YOU KNOW? A pulley can let you lift things four times your own weight. Loop a rope around a few wheels and suddenly a kid can lift a fridge - pulleys multiply your strength. 1 min read
A colorful collage features a fan, fridge, hair dryer, electric toothbrush, blender, vacuum, and washing machine surrounding…
DID YOU KNOW? There are probably more than 50 electric motors in your home. Fans, fridges, blenders, hair dryers, electric toothbrushes, washing machines - almost any spinning thing has a motor inside. 2 min read
A cheerful worker in a blue cap organizes stacks of paper next to a vintage air conditioning unit with icy blue waves.
DID YOU KNOW? Air conditioning was invented to dry out a printing factory. Willis Carrier built the first modern AC in 1902 - not for comfort, but to stop paper from warping in summer heat. 2 min read
A cheerful boy in a red hat lifts a sparkling ice block while workers cut ice from a frozen lake, with a cart full of straw…
DID YOU KNOW? Before refrigerators, people kept food cold with giant blocks of ice. Workers cut ice from frozen lakes in winter, stored it in straw, and shipped it around the world to fill ice boxes. 2 min read
A cheerful girl stitches a bright red fabric with a vintage sewing machine, surrounded by colorful spools of thread.
DID YOU KNOW? A sewing machine can stitch in minutes what would take a human hours. Before sewing machines, every shirt and dress was stitched entirely by hand - often taking 14 hours or more. 2 min read
A cheerful woman in a red headscarf drives a colorful three-wheeled buggy, smiling as steam puffs from the engine.
DID YOU KNOW? The first modern car had only three wheels. Karl Benz built a gas-powered three-wheeled buggy in 1885 - and his wife Bertha drove it 65 miles to prove it worked. 2 min read
A startled man with a beard and bow tie speaks into an old-fashioned telephone, a splash of liquid on his suit.
DID YOU KNOW? The first telephone call was a request for help. Alexander Graham Bell spilled acid on himself in 1876 and called out: "Mr. Watson, come here - I want to see you." 2 min read
A cheerful caveman in a spotted tunic waves next to a large wooden wheel, showcasing its ancient design against a bright…
DID YOU KNOW? The oldest wheel ever found is more than 5,000 years old. A wooden wheel from a swamp in Slovenia is older than the pyramids - and humans used wheels for pottery before transport. 2 min read
A bright red kettle steams vigorously, connected to a yellow piston arm, set against a playful blue background.
DID YOU KNOW? A boiling kettle inspired the engine that powered the Industrial Revolution. Steam pushing against a piston gave humans the power of hundreds of horses - and changed work, travel and cities forever. 2 min read
A cartoon moth with big eyes and colorful wings buzzes around a glowing light bulb, symbolizing a computer "bug.
DID YOU KNOW? The first computer "bug" was a real moth. In 1947, engineers discovered a real moth stuck in the Harvard Mark II computer, marking the first recorded case of a "computer bug. 1 min read

⚡ QUICK-FIRE INVENTIONS & TECH WHOAS

60 bite-sized brain-zappers. Click for another.

WHOA!

Roll the dice for an instant whoa.