Science & Nature 🌿
- Bananas are berries, but strawberries aren't!
- A day on Venus is longer than a year on Venus.
- Octopuses have three hearts.
- Wombat poop is cube-shaped.
- There's a species of jellyfish (Turritopsis dohrnii) that is biologically immortal.
- Water can boil and freeze at the same time (triple point).
- The Eiffel Tower grows taller in summer due to heat expansion.
- There are more trees on Earth than stars in the Milky Way.
- Honey never spoils; archaeologists found 3,000-year-old edible honey.
- Hot water freezes faster than cold water (Mpemba effect).
Space & Universe 🌌
- Neutron stars are so dense that a sugar-cube-sized amount would weigh billions of tons.
- There’s a massive water cloud in space, holding 140 trillion times Earth's water.
- One teaspoon of a neutron star would weigh about 6 billion tons.
- If you could fold a piece of paper 42 times, it would reach the Moon.
- Saturn’s moon Titan has lakes of liquid methane.
- The Sun makes up 99.8% of the mass in our solar system.
- A black hole can slow down time due to gravitational time dilation.
- The footprints on the Moon will remain for millions of years.
- A day on Mars is just 40 minutes longer than a day on Earth.
- There is a planet where it rains molten glass sideways (HD 189733b).
Animals & Creatures 🦓
- Sea otters hold hands while sleeping to keep from drifting apart.
- Cows have best friends and get stressed when separated.
- Sloths can hold their breath longer than dolphins.
- Some turtles can breathe through their butts.
- There are more fake flamingos in the world than real ones.
- Axolotls can regenerate limbs and even parts of their heart and brain.
- A shrimp’s heart is in its head.
- Hummingbirds are the only birds that can fly backward.
- Octopuses can change color in an instant using special skin cells.
- The immortal jellyfish can revert back to its juvenile form.
History & Human Body 🏛️
- Cleopatra lived closer to the invention of the iPhone than the building of the pyramids.
- The human brain produces enough electricity to power a light bulb.
- Your bones are actually stronger than steel.
- You can’t hum while holding your nose closed.
- Your stomach gets a new lining every 3 to 4 days.
- Humans share about 60% of their DNA with bananas.
- Your body has more bacteria than human cells.
- The entire internet weighs about the same as a strawberry.
- The smell of freshly cut grass is actually a plant distress signal.
- Your brain can store the equivalent of 2.5 petabytes of information.
Mind-Blowing Geography 🌍
- Antarctica is the driest, windiest, and coldest place on Earth.
- There’s a place in Canada with lower gravity than the rest of Earth.
- Russia is bigger than Pluto.
- You could fit all the planets between Earth and the Moon with room to spare.
- Alaska is the westernmost and easternmost state in the U.S.
- Mount Everest grows about 4 millimeters taller every year.
- The Sahara Desert was once a lush, green jungle.
- Iceland has no mosquitoes.
- The Amazon Rainforest produces 20% of the world’s oxygen.
- The Dead Sea is so salty you can float without trying.
Technology & Innovations ⚙️
- The first email was sent in 1971.
- The first website is still online (info.cern.ch).
- Bluetooth is named after a Viking king.
- The Apollo 11 computer had less power than a modern calculator.
- GPS was originally a military project.
- The first digital camera was invented in 1975 and had only 0.01 megapixels.
- Google was originally called “Backrub.”
- There’s Wi-Fi on the Moon, thanks to NASA experiments.
- The world’s first 3D-printed car was made in 2014.
- The floppy disk icon is still used to represent "save" even though most people today have never used one.
Food & Drinks 🍔
- Pineapples take about two years to grow.
- A single fast-food hamburger can contain meat from 100+ cows.
- Ketchup was once sold as medicine.
- The popsicle was invented by an 11-year-old.
- Peanuts aren’t nuts; they’re legumes.
- Cheese is the most stolen food in the world.
- Coca-Cola was the first soft drink consumed in space.
- Carrots were originally purple, not orange.
- McDonald’s sells 75 hamburgers every second.
- Lobsters were once considered food for poor people.
Unbelievable Laws & Records 📜
- In Switzerland, it’s illegal to own just one guinea pig.
- In Japan, there’s an island full of bunnies.
- The world’s largest snowflake was 15 inches wide.
- The longest hiccuping spree lasted 68 years.
- The world's quietest room can make you hear your own heartbeat.
- A single lightning bolt is five times hotter than the surface of the Sun.
- The longest English word has 189,819 letters.
- The world's largest pyramid isn't in Egypt; it's in Mexico.
- The shortest war in history lasted just 38–45 minutes.
- More people visit France than any other country.
Random & Weird Facts 🤯
- You can’t breathe and swallow at the same time.
- Some people have an extra bone in their knee that’s making a comeback.
- A bolt of lightning contains enough energy to toast 100,000 slices of bread.
- The human nose can detect over a trillion different scents.
- The tongue print is as unique as a fingerprint.
- Venus is the hottest planet in the solar system, not Mercury.
- Cows have regional accents.
- The "M’s" in M&Ms stand for Mars and Murrie.
- The letter "J" is the only letter missing from the periodic table.
- It rains diamonds on Jupiter and Saturn.
Extra Surprises! 🎉
- There’s a hotel in Sweden made entirely of ice.
- The moon has moonquakes.
- It takes 8 minutes for sunlight to reach Earth.
- Butterflies can taste with their feet.
- The Great Wall of China isn’t visible from space.
- The longest time between twin births is 87 days.
- Napoleon was once attacked by a horde of bunnies.
- A cat was once the mayor of an Alaskan town.
- The word "emoji" comes from Japanese, not English.
- A cloud can weigh as much as a million pounds.
Welcome to here!
Here we can learn from each other how to use SiYuan, give feedback and suggestions, and build SiYuan together.
Signup About