Magdeburg Hemisphere Teaching Instrument Magdeburg Hemispheres Experiment Mini Teaching Atmospheric Pressure

Features

• This product is mainly used in junior high school physics to prove the existence of atmospheric pressure and demonstrate the famous Magdeburg hemisphere experiment.
• Two rubber hemispheres with pull-rings align with each other to form a closed container, and then press lightly. The pressure difference between the closed sphere and the outside atmospheric pressure will suck the two hemispherical balls tightly, so that they cannot be used in a certain tension ring. The two hemispheres are separated.
• Size: chassis diameter 117mm/4.6 in Material: rubber chassis + metal pull ring Weight: a pair of net weight is about 350g
• This product consists of two cast iron hemispheres with pull rings. The two hemispheres are combined with each other to form a sealed container. One of the hemispheres has a gas guide valve. The air in the sealed hemisphere can be withdrawn through the valve.
• The pressure difference between the sealing ball and the outside compresses the two hemispheres, so that they cannot be separated within a certain pulling force.