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Know-it-all!

There are 1609 kilometers of capillaries in human lungs. And the surface area of the lungs is almost 100 square meters, which is approximately equal to the area of the tennis court.
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A place where there is no cellular communication and the Internet, no Wi-Fi, television and radio - this is Green Bank in West Virginia, in the USA. Wireless data transmission is prohibited, since here in the radio astronomy observatory is located one of the largest telescopes in the world.
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The power of sneezing is so great that it exceeds a speed of 160 km/h. And this is stronger than the wind!
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The heart is one of the most slowly regenerating organs of the human body. In a 25-year-old person, only 1% of heart cells are renewed annually, and this figure decreases with age. In a lifetime, less than half the heart cells are renewed.
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Cats don't taste sweet. They do not respond to sugar or its substitutes.
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Ants nod to each other when they meet. And in order to effectively find food in an unfamiliar place, they are guided by the laws of probability distribution of Gauss and Pareto.
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A person blinks about 84 million times a year or 230137 times a day.
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The Moon has its own "water" elements - the Ocean of Storms, the Lake of Death and the Marsh of Rot.
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"Eternal lover" Casanova (1725-1798) served as a librarian.
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Sneezing in a dream is impossible. Even if someone tickles your nose, you still wake up before you sneeze.
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The world's first computer was created in 1941. It weighed 30 tons and cost 500 thousand dollars.
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Chimpanzees are the only animals that can recognize themselves in the mirror.
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Twins can be born with an interval of several months. A medical record is registered in Germany. One of the two girls was born on the sixth month of pregnancy in 2018, with a weight of only 900 g, and the second of the twins was born 97 days later, already in 2019, with a weight of 3.7 kg, while breaking a record with a difference of 87 days between the twins from Ireland.
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The world trade makes huge money practically "out of thin air" - thanks to unused gift certificates.
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The surface area of the tallest building in the world - the Burj Khalifa skyscraper in Dubai is approximately equal to the area of 17 football fields. Its height is 829.8 m. The glass of a 163-story building is washed daily, and it takes about three months to wash the entire surface.
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The USA is a world leader of people behind the bars. 5% of the world’s population live in the US and 25% of the whole numbers of prisoners stay in jail here - 2.2 million people. Russia - the country with the smallest number of acquittals in a civilized world occupies the second place - 1.5 million people. And China closes the top three with the number of 870 thousand imprisoned people.
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Octopuses have three hearts and blue blood. Besides that, they are perfectly masking by the color of the surface on which they dwell. And their females have the longest gestational age compared to other types of living organisms on Earth - 53 months (about 4.5 years).
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Beethoven had his own whims: making coffee he counted exactly 60 beans every time - so that the drink always turned out to be one strength; and on Thursdays he ate bread soup and 10 fried eggs.
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You can make the cow climb up the stairs, but it is impossible to force it go down.
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The human intestines have 1,000 times more bacteria than the stars in the Milky Way galaxy.
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