Why You Rarely See Other Airplanes While Flying ?

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 Planes Don't Fly Faster https://www.youtube.com/watch?v=bnfse...
What Will Happen If Planes Fly Almost to Space https://www.youtube.com/watch?v=dXtNc...