fluid_mechanics.gif (14060 bytes)

MADGEBURG HEMISPHERES




EQUIPMENT
    redball.gif (326 bytes) Madgeburg Hemispheres
    redball.gif (326 bytes) Vacuum Pump
   


NARRATIVE
            The Madgeburg Hemispheres were Gueriecke's method of illustrating atmospheric pressure. Two small hemispheres having mating flanges and can be evacuated through a petcock in one of the hemispheres. A handle or cord is fitted to each of the hemispheres. When evacuated with the vacuum pump, the hemispheres cannot be pulled apart by two strong students.