Magdeburg Hemisphere Experiment
Operation: 1. Cover the hemisphere, press the "Start" button, wait for vacuum, then try to pull the hemispheres apart. 2. Bring the two sets of rubber hemispheres together, press firmly to expel the air inside, then pull apart forcefully. Carefully observe the difference between the two sets of rubber hemispheres and think about why the force required to pull them apart is so different. Function Overview: The exhibit consists of a display stand, vacuum pump, metal Magdeburg hemispheres, intact rubber hemispheres, and a rubber hemisphere with a hole punctured in it. Visitors conduct experiments with different hemispheres to understand the existence of atmospheric pressure. Scientific Principle: In 1654, Otto von Guericke, then mayor of Magdeburg, conducted a scientific experiment in Regensburg of the Roman Empire (now Regensburg, Germany) to prove the existence of vacuum. This experiment is called the "Magdeburg hemispheres" experiment due to Guericke's title. The two hemispheres used in the experiment are still preserved in the Deutsches Museum in Munich. Today, replicas for educational purposes are used to demonstrate the principle of air pressure. Their volume is much smaller than the original hemispheres. After evacuating the space between the hemispheres, it no longer requires more than ten horses; some can be pulled apart by just four people. The Magdeburg hemispheres experiment proves that atmospheric pressure exists and is very strong. In the experiment, the air inside the two hemispheres is removed, reducing the number of air particles inside. The external atmospheric pressure then presses the two hemispheres tightly together, making them difficult to separate. The more air removed, the greater the pressure.
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- China Science and Technology Museum Standard Edition CSTM Standard EditionDimensions (unit: m): 0.75×0.68×1.10 Brand: KexMall Model: PopsciCat-Mobile-074 1. Materials: ① Display stand: flame-retardant ABS injection molding, thickness ≧4mm ② Tabletop: compact laminate, thickness ≧12mm ③ Instruction sign: acrylic UV printing ④ Tabletop fasteners: standard triangular locks ⑤ Bracket: acrylic ⑥ Hemispheres: cast iron 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with KexMall® K1 special PLC controller with protection for science exhibits ② Switching power supply: AC-DCS-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③ Button: self-resetting 22mm stainless steel metal button with ring light ④ Vacuum pump: low-noise vacuum pump 3. Energy Requirements: AC100-240V, 50/60Hz 1500W
Operation: 1. Cover the hemisphere, press the "Start" button, wait for vacuum, then try to pull the hemispheres apart. 2. Bring the two sets of rubber hemispheres together, press firmly to expel the air inside, then pull apart forcefully. Carefully observe the difference between the two sets of rubber hemispheres and think about why the force required to pull them apart is so different. Function Overview: The exhibit consists of a display stand, vacuum pump, metal Magdeburg hemispheres, intact rubber hemispheres, and a rubber hemisphere with a hole punctured in it. Visitors conduct experiments with different hemispheres to understand the existence of atmospheric pressure. Scientific Principle: In 1654, Otto von Guericke, then mayor of Magdeburg, conducted a scientific experiment in Regensburg of the Roman Empire (now Regensburg, Germany) to prove the existence of vacuum. This experiment is called the "Magdeburg hemispheres" experiment due to Guericke's title. The two hemispheres used in the experiment are still preserved in the Deutsches Museum in Munich. Today, replicas for educational purposes are used to demonstrate the principle of air pressure. Their volume is much smaller than the original hemispheres. After evacuating the space between the hemispheres, it no longer requires more than ten horses; some can be pulled apart by just four people. The Magdeburg hemispheres experiment proves that atmospheric pressure exists and is very strong. In the experiment, the air inside the two hemispheres is removed, reducing the number of air particles inside. The external atmospheric pressure then presses the two hemispheres tightly together, making them difficult to separate. The more air removed, the greater the pressure.
- Optimized Popular Edition Optimized EditionDimensions (unit: m): 0.75×0.68×1.10 Brand: KexMall Model: PopsciCat-Mobile-074 1. Materials: ① Display stand: flame-retardant ABS injection molding, thickness ≧4mm ② Tabletop: compact laminate, thickness ≧12mm ③ Instruction sign: acrylic UV printing ④ Tabletop fasteners: standard triangular locks ⑤ Bracket: acrylic ⑥ Hemispheres: cast iron 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with KexMall® K1 special PLC controller with protection for science exhibits ② Switching power supply: AC-DCS-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③ Button: self-resetting 22mm stainless steel metal button with ring light ④ Vacuum pump: low-noise vacuum pump 3. Energy Requirements: AC100-240V, 50/60Hz 1500W
Operation: 1. Cover the hemisphere, press the "Start" button, wait for vacuum, then try to pull the hemispheres apart. 2. Bring the two sets of rubber hemispheres together, press firmly to expel the air inside, then pull apart forcefully. Carefully observe the difference between the two sets of rubber hemispheres and think about why the force required to pull them apart is so different. Function Overview: The exhibit consists of a display stand, vacuum pump, metal Magdeburg hemispheres, intact rubber hemispheres, and a rubber hemisphere with a hole punctured in it. Visitors conduct experiments with different hemispheres to understand the existence of atmospheric pressure. Scientific Principle: In 1654, Otto von Guericke, then mayor of Magdeburg, conducted a scientific experiment in Regensburg of the Roman Empire (now Regensburg, Germany) to prove the existence of vacuum. This experiment is called the "Magdeburg hemispheres" experiment due to Guericke's title. The two hemispheres used in the experiment are still preserved in the Deutsches Museum in Munich. Today, replicas for educational purposes are used to demonstrate the principle of air pressure. Their volume is much smaller than the original hemispheres. After evacuating the space between the hemispheres, it no longer requires more than ten horses; some can be pulled apart by just four people. The Magdeburg hemispheres experiment proves that atmospheric pressure exists and is very strong. In the experiment, the air inside the two hemispheres is removed, reducing the number of air particles inside. The external atmospheric pressure then presses the two hemispheres tightly together, making them difficult to separate. The more air removed, the greater the pressure.