Right now, there are about 10,000 planes carrying almost 1½ million people from one point to another. But once you're on the plane and look out the window, it seems as if your aircraft is the only one dashing across the sky.  The sky may seem deserted, but it's just an illusion. Planes can't just fly wherever they want - they need to follow special routes. These routes are more or less the same for all aircraft, and during your flight, several other planes are likely soaring nearby. Soтwhere is everybody? 

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Why does a stop sign have 8 sides? Why don't snorers wake themselves up? Why do we have red eyes in flash photos? There is so much to know about the world, and sometimes when you stumble across some amusing facts you cannot help but gasp in wonder. Some facts blow your mind, some information makes you want to try it yourself immediately, and other things simply prompt you to find more trivia.  So if you are one curious cat, you are in for a treat because this video is full of random facts that you were probably never aware of. Do you know, for example, why we have eyebrows? Or why we feel colder when our skin is wet? So here's another compilation of amazing facts about the world that can make you sound knowledgeable in conversations with others.

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How far is the edge of the Universe? Astronomers have recently found a strange object far away from Earth. It disappears every two minutes and sends out waves of radio noise three times in one hour. This space object appears to be different from anything else we've seen before in space. Speaking of weird things we've found in the Universe, the toughest object we know of is made from the remains of a star that has faded away.

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AI is everywhere these days, so why don't we make it do something cool for us? We asked AI what our most beloved cartoon characters would look like if they were human, and we got some pretty impressive pictures! So how about we play a game? I'll be showing you AI drawings, and you'll have to tell me what cartoon character that is.

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Tech support has to deal with all kinds of cases. Some problems can be avoided if you follow simple tips. Next time your camera flickers to something weird, go check the device itself first before creating a ticket for tech support. Otherwise, you may end up just like this Redditor did. Another Redditor shared an image of something that even the mightiest tech support won’t fix. Seems like someone didn’t change the toner the right way, and the whole room got completely covered by ink.

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Do you remember the sad story of Pompei that was destroyed by a dangerous volcano? Now imagine that several giant volcanoes begin to splash out an infinite amount of magma. It just doesn't end and covers an entire continent. This is a flood basalt. About 252 million years ago, in the northern part of our planet, a lot of magma accumulated under Earth's crust, and this disaster did happen. But can it happen again?

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All the islands can be easily tracked by coordinates, but it’s not the case with these Peruvian islands. These floating islands occupy a corner of Lake Titicaca, the world’s most navigable lake. The cool thing about Uros Islands is that these islets are human-made and kind of edible! The plant the islets are made from can be eaten, and its flowers can be used to make tea. But there are more unusual islands in the world: let's discover some of them.

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Have you ever wondered why birds tend to fly in circles? It’s because of thermals that occur when the sun heats up the Earth, and the air close to the ground gets warm and starts to rise. Those that especially tend to use this “flying in circles” mode are large raptors such as hawks, vultures, and eagles. And they often do it before storms. That's just one way animals and birds can predict bad weather - watch out for more signs like this.

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Have you ever heard that everything will look like a crab at some point? It's not that wrong: some creatures are in some way turning into crabs! It's something we call carcinization, a process where evolution realized crabs were really cool, so it decided to make other creatures similar to them. And that has already happened at least five times – within at least 5 different groups of animals that are not crabs.

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Imagine climbing a skyscraper without any protection. You have no security rope, no special equipment, and no special powers like Spiderman. Would you try it? Harry Gardiner tried and nailed it on over 700 buildings in Europe and North America in the early 1900s. Multiple times he faced the worst outcome he could get while climbing and fell to the ground. Did he survive?

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