#3161: Airspeed

XKCD comic, described below.
Transcript
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[A hot air balloon is shown with its six vertical panels alternating in black and white. Megan and Cueball are riding in the basket, with Cueball looking over the side and down while Megan looks at something inside the basket, also looking down.]

Megan: 0 MPH... 0 MPH... Ooh, 1 MPH with that last gust... 0 MPH... 1 MPH... 1 MPH... 2 MPH!!!

Cueball: YESSSS!

[Caption below the panel:]

Breaking the hot air balloon level-flight airspeed record


(Sourced from explainxkcd.com)

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


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