/u/Groke's posts in /r/askscience
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How high up do I have to be on the 65th latitude to see the northern horizon that I can see at ground level at the 66th?
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If I placed a Boeing 747 with 4 engines on the ground with the nose pointing straight up, would it be able to take off, if only for a short time?
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If we were still on earth when Andromeda crashes into our galaxy, what would it look like from here?
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