Objective:
– To illustrate atmospheric pressure.
Apparatus:
- Magdeburg Pressure discs
- Vacuum pump and plate
Method
When the air space between the two discs has been exhausted, the stopcock closed, and the device removed from the pump plate, it will be impossible to pull the plates apart by hand. If the stopcock is opened, they separate easily.
Pressure Demo: Magdeburg Hemispheres
– Video Created at Utah State University by Professor Boyd F. Edwards and assistants.