Can you balance a ball in a vertical stream of water without using the Bernoulli Principle? The video shows how to achieve this with multiple balls and even discs. It describes how the ball remains stable even when off to one side of the water.

Concepts

bernoulli's principle, equilibrium

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Additional Tags

science

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Instructional Ideas

• Make your own hydrodynamic levitation machine
• Discuss why this is not an example of the Magnus or Coanda effect

Classroom Considerations

• Relies on prior knowledge of force diagrams and the Bernoulli Principle

• This video is hosted on YouTube

Pros

• Includes subtitles in 11 languages for English learners
• Presenter's excitement shines through in the video

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 RST.9-10.4 RST.11-12.4