This experiment is one of my favorites to use when teaching university-level fluid mechanics, because it is quite a complex task to demonstrate and analyze the aerodynamic lift. The easiest explanation is that lift is generated by the rotation of the cups. How and why the vortex generates lift is much more complex, but remember that as the air velocity increases, the pressure decreases. And remember... higher pressure regions always push.
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Thats the best when you knocked out the camera my mom was laughing so hard!
I keep watching where you knocked out the camera. LOL sorry if its mean.
That’s hilarious!
-Lucy Aslinger-
Hilarious.my sister kept asking me to see the part when you hit the camera she thought it was so funny.