this post was submitted on 27 Jan 2025
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Explain Like I'm Five

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Flat earth thought (lemmynsfw.com)
submitted 3 days ago by [email protected] to c/explainlikeimfive
31 comments fedilink hide all child comments
 

cross-posted from: https://lemmynsfw.com/post/21136052

I heard something new that realy makes you wander. If the earth is rotating as they say than how airplanes can go in straight line? If earth is moving under them they should land way off the desired destinacion.. ๐Ÿ˜ฎ They are not connected to the earth so rotacion shouldnt apply to them, it applyes only to cars and runing animals but not on airplains and bierds.. Also when you jump from baloon that is wery high up, you shouldnt fall straight down, if the earth is rotating it should move under you and you could newer fall on the same spot that you jumped over.. ๐Ÿซข

I cant beleave this newer came to my mind for entire life.. ๐Ÿ˜ต

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[โ€“] [email protected] 4 points 3 days ago (2 children)

That's just plain wrong.

Everything on earth moves with the earth's rotation because of inertia or more precisely because of conservation of angular momentum.

OP: Any object that is moving keeps moving in that direction unless some force changes that. So every plane keeps moving with the earth's rotation because it started that way. Whatever speed it picks up from its engines is in addition to that.

[โ€“] [email protected] 3 points 2 days ago

Tnx that makes sense

[โ€“] [email protected] 2 points 2 days ago (1 children)

You're right, but my point was the Earth is not flat.

[โ€“] [email protected] 3 points 2 days ago (1 children)

Sure, but the earth does not rotate underneath airplanes. Airplanes rotate with the earth.

[โ€“] [email protected] 1 points 2 days ago

That's why I said "you're right." No need to be a jerk