Columbia University Physics Lecture Demonstrations


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2B30.30 Magdeburg Hemispheres

[Setup Time: 5 Min.] [Current Condition: Good- but the working version is two discs instead of hemispheres]

Info

Two brass hemispheres are placed together and the inside is evacuated with a pump. Atmospheric pressure makes it very hard to separate them until the vacuum is released.

Parts List

Magdeburg Hemispheres in B. Fluids & Mech, 2

Vacuum Pump by backwall

Relevant Simulation

Demo Example:

Other Information

Magdeburg Hemispheres

Real-Life Examples

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More Advanced Reading

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