Magdeburg hemispheres - Welch

2B30.30A | Ae5
Catalog: 
2B30.30A
Location: 
Ae5
Room: 
PS F175
Condition: 
Fair
Quantity: 
1
Instructors: 
Adams
  • The Magdeburg "hemisphere" is difficult to pull apart when the air is evauated w
    The Magdeburg "hemisphere" is difficult to pull apart when the air is evauated with a vacuum pump. The atmospheric pressure holds it shut.
Description: 

Evacuated hemispheres cannot be pulled apart.

Instructions: 

Turn stop cock parallel to air flow and evacuate with a vacuum pump. Turn the stop cock perpendicular to maintain the vacuum. Have two students try to pull them apart.