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Here is an experiment I found on youtube:
Here is how I understand the setup:
- A bucket with water spins on a turntable
- The bucket is closed, so the air inside spins with the bucket & water : All three are at rest in the rotating frame (not 100% sure about this, but the ball moves slow, so there can't be wind blowing over the water surface).
- The camera spins with the bucket: It shows what happens in the rotating frame.
Clip 1: A simple ping pong ball placed on the water surface deviates to the edge
Clip 2: A ping pong ball with weight added (so it is mostly submerged) placed on the water surface deviates to the center
What is the explanation?
Here is how I understand the setup:
- A bucket with water spins on a turntable
- The bucket is closed, so the air inside spins with the bucket & water : All three are at rest in the rotating frame (not 100% sure about this, but the ball moves slow, so there can't be wind blowing over the water surface).
- The camera spins with the bucket: It shows what happens in the rotating frame.
Clip 1: A simple ping pong ball placed on the water surface deviates to the edge
Clip 2: A ping pong ball with weight added (so it is mostly submerged) placed on the water surface deviates to the center
What is the explanation?
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