They count the number of incoming passengers on a special device and check that all passengers are on board.
13) What exactly is turbulence?
Alright. Imagine a big hot-air balloon. See that flamethrower? It heats the air, which makes the balloon go up. Turbulence is the same: hot air. it’s created by nature, not by a flamethrower. And there is a plane instead of a balloon. That’s why you can feel like you’re on a very bad roller coaster in turbulence. Also, turbulence can occur if your plane gets into the wake (or exhaust stream) left by another plane.
14) How are airplanes protected from lightning?
Even if lightning strikes, the passengers won’t feel it. The entire aircraft is covered with an aluminum coating that conducts electric current but doesn’t allow it inside the plane. All electronics and fuel tanks are equipped with additional protection too. And of course, all this protection is tested by simulating lightning strikes.
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15) Why couldn’t you use your phone on an airplane in the past?
Mobile phones were really dangerous for flights, but only when they had just appeared. Their radio signal could disrupt the work of the electronics of the aircraft. Fortunately, modern phones can no longer do this because their communication functions have changed, and airplane mode has appeared.
16) Why do some airlines recommend not using phones even now?
They impose phone restrictions because people should remain vigilant in case of unforeseen situations on board. It’s quite difficult to get the passenger’s attention when they’re watching a movie or playing a game on their smartphone.
17) In what cases do oxygen masks fall out of the ceiling?
Masks don’t only fall out when the plane is falling, but when the air pressure changes too. Like if the plane decompresses for some reason. Air is getting thinner in the cabin at a certain altitude. So that passengers don’t feel this, they put on oxygen masks. Pilots quickly drop to a safe altitude, and you can breathe further without a mask on.
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Why are airplane windows round?
