▲ 45 r/Physics
What is the mechanism behind the balloon moving with the fan?
We hosted a birthday for my roommate in our dorm, and, by coincidence, one of us tossed a balloon (filled wait air) in front of a fan which caused it to not only blow up and stay in place, but also move in sync with the fan as it rotated. I’d assume the balloon isn’t floating away because the force of the air pushing it up and away is the same as the force of gravity pulling it down, but why does it move with the fan?
u/Antique_Buddy938 — 4 days ago