Discover amazing facts about our world!
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Earth is about 4.5 billion years old, while the universe is about 13.5 billion years old.
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In an average lifetime, a person produces enough saliva to fill two swimming pools.
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Some trees can live for thousands of years; the oldest is over 5,000 years old.
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Koalas sleep up to 22 hours a day to conserve energy.
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Butterflies taste with their feet to find out if a leaf is good to lay eggs on.
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Water can boil and freeze at the same time, a phenomenon called the triple point.
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The first email was sent in 1971 by Ray Tomlinson.
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Cleopatra lived closer in time to the first moon landing than to the construction of the pyramids.
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You shed about eight pounds of dead skin every year, which becomes part of the dust in your home.
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The shortest war in history lasted only 38 minutes between Britain and Zanzibar in 1896.
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The first website ever created is still online.
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There are more stars in the universe than grains of sand on all the beaches on Earth.
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Samsung tests phone durability with a butt-shaped robot that wears jeans to make sure phones survive being sat on.
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A cluster of bananas is called a hand; a single banana is called a finger.
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A giraffe’s tongue is so long that it can even lick its ears.
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The first computer was invented in the 19th century by Charles Babbage.
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Octopuses can change both the color and texture of their skin to blend into their surroundings.
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3D printing was invented in the 1980s and can now print food and even organs.
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The smallest bones in your body are inside your ear and could all fit on a penny.
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Soil is full of life—a teaspoon of soil can hold up to 100 million bacteria.
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Mount Everest grows about 4 millimeters higher every year due to tectonic activity.
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The first email was sent in 1971 by Ray Tomlinson.
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On Mars, sunsets appear blue instead of red.
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The first computer mouse was made of wood.
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Bamboo can grow up to 91 cm (35 inches) in a single day.
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The Sahara Desert is the largest hot desert in the world.
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Stars come in different sizes and colors, from small red dwarfs to huge blue giants.
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The only planet that rotates on its side is Uranus, with a tilt of about 98 degrees.
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Your stomach acid is so strong it could dissolve metal, but your stomach lining protects you!
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Did you know that one day on Venus is longer than one year on Venus? Venus rotates so slowly that it takes 243 Earth days to complete one rotation!
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Your intestines are about 25 feet long from end to end.
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The sentence “The quick brown fox jumps over the lazy dog” uses every letter in the English alphabet.
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The only word in English that ends with “mt” is “dreamt”.
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The Sun is so massive that more than one million Earths could fit inside it.
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Elephants are the only mammals that can’t jump!
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The Amazon rainforest produces 20% of the world’s oxygen.
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Slugs have four noses, which help them smell and explore their surroundings.
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The Milky Way galaxy holds between 100 and 400 billion stars.
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Cows and horses can sleep while standing up.
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A teaspoon of a neutron star would weigh 6 billion tons because it is incredibly dense.
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The first computer mouse was made of wood.
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The world’s oldest known “your mom” joke is over 3,500 years old.
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Japan has one vending machine for every 40 people, selling everything from drinks to ice cream.
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Lemons float in water, but limes sink because limes are denser.
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Camels store fat, not water, in their humps. This helps keep them cooler in the desert.
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Cats have 32 muscles in each ear, helping them hear even the slightest sounds.
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Japan has one vending machine for every 40 people.
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Apples float in water because they are 25% air.
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Mount Everest grows about 4 millimeters higher every year due to tectonic activity.
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The Olympic Games originated in ancient Greece over 2,700 years ago.
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Did you know that your nose can remember 50,000 different scents?
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Ancient Egyptians used moldy bread to help heal wounds.
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The longest word in English is 189,819 letters long and is the chemical name for the protein Titin.
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Lightning is five times hotter than the surface of the sun.
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There are 195 countries in the world today.
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The first video game ever created was called “Tennis for Two” in 1958.
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The most commonly spoken language in the world is Mandarin Chinese.
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Jupiter’s Great Red Spot is a giant storm that has been raging for over 400 years.
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Butterflies taste with their feet.
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The first-ever Ferris wheel was built in Chicago for the 1893 World’s Fair.
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There are about 7,000 languages spoken in the world today.
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Honey never spoils. Archaeologists have found edible honey in ancient Egyptian tombs!
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The dot over the letters “i” and “j” is called a tittle.
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Canada has the longest coastline in the world, stretching over 202,000 kilometers.
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Bananas are berries, but strawberries are not!
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Honey never spoils; archaeologists have found edible honey in ancient Egyptian tombs.
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Cucumbers are 96% water.
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There are more mobile phones than people on Earth.
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Venus flytraps can snap shut in less than a second to catch prey.
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Lake Baikal in Russia is the deepest lake in the world.
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Venus is the hottest planet in our solar system, with surface temperatures around 450°C.
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The shortest war in history lasted only 38 minutes between Britain and Zanzibar.
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Saturn is so light that it could float in water.
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The Great Wall of China is over 13,000 miles long.
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Canada has the longest coastline in the world, stretching over 202,000 kilometers.
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Jupiter is so big that over 1,300 Earths could fit inside it.
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Giraffes have the same number of neck bones as humans – seven!
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Did you know that the ocean covers more than 70% of the Earth's surface?
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Broccoli contains more protein than steak per calorie.
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Black holes make a humming sound, but it’s too low for humans to hear.
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Scotland has 421 words for snow, including “sneesl” (to start raining or snowing) and “flinkdrinkin” (a light snow).
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Bananas are berries, but strawberries aren’t! Botanically, bananas fit the definition of a berry, while strawberries do not because of how their seeds grow on the outside.
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Mercury and Venus are the only planets in our solar system without moons.
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Starfish can regenerate lost arms, and sometimes an entire new starfish can grow from a single arm.
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A day on Venus is longer than a year on Venus because it rotates very slowly.
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The Great Wall of China is over 13,000 miles long.
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Africa is the only continent in all four hemispheres of the Earth.
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Your mouth produces about one liter of saliva each day!
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Your sense of smell is closely linked to your memories, and certain smells can trigger strong emotions.
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Dragonflies cannot walk even though they have six legs.
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A shrimp’s heart is located inside its head!
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Your tongue print is unique, just like your fingerprints.
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The resurrection fern can survive being completely dried out for up to 100 years and come back to life when watered.
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Peanuts are not nuts; they are legumes.
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Potatoes were the first food grown in space.
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Rainbows are actually full circles, but we usually only see half from the ground.
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A group of flamingos is called a “flamboyance.”
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Lemons float in water, but limes sink because limes are denser than lemons.
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Russia is the largest country in the world by land area.
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Australia is both a country and a continent.
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