eli5: When an balloon rises up in the air, why is it not left behind further up as the earth spins?

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when an helium filled balloon rises (in a windless scenario) it would just rise straight up, 90°, right? So I know it has the same speed as the spot on earth it was let go. But with anything spinning, it spins faster the further you get away from the center! So how does it pick up speed to stay over the same spot it has left the earth? From where does it get the force to spin faster? Or if it does not need it – why?

In: Earth Science

5 Answers

Anonymous 0 Comments

Because, local wind excepted, the atmosphere is moving around with the Earth.

If it were not, there would be permanent East to West winds, everywhere, all the time.

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