Why does a hole in a flying airplane cause things to get sucked out into the sky?
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Most long distance passenger planes fly very high. That’s because when the outside air is thin, airplanes can fly faster and use less fuel.
Humans constantly need a certain amount of oxygen. If they don’t get enough, within very few minutes they will get sick or die. So to keep passengers comfortable and safe, a passenger airplane that flies very high will always have air pumps to make sure there’s enough air in the cabin.
That means there’s a pressure difference. So if there’s a sudden hole when the airplane is very high, the extra air that’s been slowly pumped into the cabin over many minutes will rush out through the hole in seconds. The fast moving air is basically a powerful wind that blows objects into the hole.
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