this post was submitted on 29 Oct 2025
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xkcd #3161: Airspeed

Title text:

Carefully maneuvering the balloon down a mineshaft in an effort to break the OTHER altitude record

Transcript:

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Source: https://xkcd.com/3161/

explainxkcd for #3161

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[–] ryannathans@aussie.zone 3 points 1 month ago* (last edited 1 month ago)

Airspeed of hot air balloons would be very similar to wind speed, except for when there's a quick change in wind speed as the balloon would have some momentum