The Mysterious Magnetic Force

Mobile Science Museum · Electromagnetism

Operation: Turn the handwheels separately to adjust the height and angle of the magnet, and observe the changes in the chain. Function Overview: The exhibit consists of a chain, a magnet, a lifting and swinging mechanism, and operating handwheels. Turn the handwheels to adjust the height and angle of the magnet, and you will see the chain stand upright in the air. Scientific Principle: What force keeps the chain from falling? When the magnet is lowered close enough to the chain, the chain is attracted to the magnet. When the magnet's height is greater than the length of the chain, the chain will detach from the magnet. Because the magnetic force continues to act through the magnetic field distributed in the space near the magnet, even if the chain and magnet are not in contact at all, as long as the distance between them is not too far, the chain will still be attracted by the magnet and stand in the air. When the distance between the magnet and the chain increases further, and the magnet's attractive force is insufficient to overcome the chain's gravity, the chain will fall. Magnets are widely used in electric motors, generators, magnetic therapy, maglev, nuclear magnetic resonance, and other fields.

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• China Science and Technology Museum Standard Edition CSTM Standard Edition
  Dimensions (unit: m): 0.75×0.68×1.20 Brand: KexMall Model: PopsciCat-Mobile-040 1. Materials: ① Base: 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 Operating handwheels: 15mm transparent acrylic + 304 stainless steel ⑥ Lifting mechanism: threaded lead screw ⑦ Protective cover: transparent acrylic + orange acrylic 2. Main configuration: None 3. Energy requirement: None

  Operation: Turn the handwheels separately to adjust the height and angle of the magnet, and observe the changes in the chain. Function Overview: The exhibit consists of a chain, a magnet, a lifting and swinging mechanism, and operating handwheels. Turn the handwheels to adjust the height and angle of the magnet, and you will see the chain stand upright in the air. Scientific Principle: What force keeps the chain from falling? When the magnet is lowered close enough to the chain, the chain is attracted to the magnet. When the magnet's height is greater than the length of the chain, the chain will detach from the magnet. Because the magnetic force continues to act through the magnetic field distributed in the space near the magnet, even if the chain and magnet are not in contact at all, as long as the distance between them is not too far, the chain will still be attracted by the magnet and stand in the air. When the distance between the magnet and the chain increases further, and the magnet's attractive force is insufficient to overcome the chain's gravity, the chain will fall. Magnets are widely used in electric motors, generators, magnetic therapy, maglev, nuclear magnetic resonance, and other fields.

• Optimized Popular Edition Optimized Edition
  Dimensions (unit: m): 0.75×0.68×1.20 Brand: KexMall Model: PopsciCat-Mobile-040 1. Materials: ① Base: 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 Operating handwheels: 15mm transparent acrylic + 304 stainless steel ⑥ Lifting mechanism: threaded lead screw ⑦ Protective cover: transparent acrylic + orange acrylic 2. Main configuration: None 3. Energy requirement: None

  Operation: Turn the handwheels separately to adjust the height and angle of the magnet, and observe the changes in the chain. Function Overview: The exhibit consists of a chain, a magnet, a lifting and swinging mechanism, and operating handwheels. Turn the handwheels to adjust the height and angle of the magnet, and you will see the chain stand upright in the air. Scientific Principle: What force keeps the chain from falling? When the magnet is lowered close enough to the chain, the chain is attracted to the magnet. When the magnet's height is greater than the length of the chain, the chain will detach from the magnet. Because the magnetic force continues to act through the magnetic field distributed in the space near the magnet, even if the chain and magnet are not in contact at all, as long as the distance between them is not too far, the chain will still be attracted by the magnet and stand in the air. When the distance between the magnet and the chain increases further, and the magnet's attractive force is insufficient to overcome the chain's gravity, the chain will fall. Magnets are widely used in electric motors, generators, magnetic therapy, maglev, nuclear magnetic resonance, and other fields.

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