Comment on xkcd #3161: Airspeed
Successful_Try543@feddit.org 3 weeks agoThe Pitot tube doesn’t work as the ballon is moving (more or less) with the wind, i.e. both pressure tubes in the Pitot tube are measuring (almost) the same pressure, resulting in measuring (almost) zero velocity.
chonglibloodsport@lemmy.world 3 weeks ago
It records an air speed of 0. Isn’t that working exactly as intended?
Successful_Try543@feddit.org 3 weeks ago
Isn’t one usually interested in the speed relative to the ground?
chonglibloodsport@lemmy.world 3 weeks ago
No. The comic is talking about airspeed: speed relative to the wind.
Successful_Try543@feddit.org 3 weeks ago
Ah, ok.