What Does a Fan Do in a Vacuum Chamber? Weird Results

A video on YouTube. In Science & Engineering, a Krater category.

Summary by Krater

The creator tests how a fan inside a vacuum chamber moves styrofoam beads at various air pressures, and discusses why planets like Mars can still experience wind despite thin atmospheres.

From the video

Answers: What happens to a fan in a vacuum chamber?

fan in a vacuum chamber
atmospheric pressure and wind
turbomolecular pumps

What it concludes

A fan inside a vacuum chamber can still blow beads around when the voltage is turned up high enough to overcome lower air density.
Mars has a thin atmosphere of about 610 pascals, yet it can still experience severe windstorms.
Turbomolecular pumps are required to achieve extremely low pressures down to 10^-9 pascals by knocking atoms down stage by stage.

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