Magdeburg Hemisphere

A Magdeburg Hemisphere, consisting of two hemispheres that can create a strong vacuum when sealed, is used to demonstrate the power of atmospheric pressure. Originally developed by Otto von Guericke, it is now a valuable tool for teaching students and researchers about air pressure and its impact on different phenomena.

Its historical significance and educational purpose make it a noteworthy representation of atmospheric pressure experiments in laboratory settings.

Procedure:

1. Combine the two Magdeburg hemispheres and securely seal the valve.
2. Attach a spring scale to each hemisphere and pull them apart, using the scales to measure the force.
3. Connect the two halves, use the pump to vacuum the air out of the sphere, and then close the valve.
4. Attach the springs to the hemispheres and pull to demonstrate the increased force required to separate the halves.