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It's crazy that a 60 ton metal airplane can just fly
(lemmy.world)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
Bernoulli's principle is certainly involved, but the full explanation is more complicated and arguably beyond high school level: