Wisdom in the Compass
★Exhibit Content: Interactive science popularization experience of the Earth's magnetic field, interaction between magnets, and the principle of compass orientation ★Interaction: Manual magnetic observation interactive demonstration ★Operation: 1. Hold the provided magnet close to the magnetic needle inside the transparent cover, move the magnet, and observe the needle rotating due to magnetic force; 2. Remove the magnet away from the exhibit, and observe the needle automatically returning to its stable original north-pointing state under the Earth's magnetic field. ★Exhibit Description: "Wisdom in the Compass" is a circular tabletop interactive exhibit for basic electromagnetism science popularization, belonging to the magnetism science exhibition area, and is a recommended exhibit by the PopsciCat Exhibit Store. The exhibit features a white and blue circular floor-standing operation table, with a large transparent high-permeability protective cover at the center, containing a high-precision red-blue partitioned magnetic needle and an azimuth dial; on the side, there is a permanent magnet operation magnet with an anti-loss lanyard and an illustrated science description board. Visitors use an external magnet to change the local magnetic field and interfere with the needle's orientation; after removing the magnet, the Earth's magnetic field regains dominance, and the needle returns to the north-south orientation, visually comparing the effects of artificial magnetic fields and the Earth's natural magnetic field on magnets, and explaining the underlying principle of compass navigation. ★Scientific Principle: The Earth itself is a giant natural magnet, with the geomagnetic south pole near the geographic north pole and the geomagnetic north pole near the geographic south pole. A freely suspended magnetic needle is affected by the Earth's magnetic field; when at rest, the S pole points to the geographic south and the N pole points to the geographic north. This is the core principle of compass orientation. When an external permanent magnet approaches the exhibit, the local artificial magnetic field strength is greater than the Earth's magnetic field, and the magnetic needle is attracted and deflected by the external magnet; after removing the external magnet, the artificial magnetic field disappears, the Earth's magnetic field regains dominance, and the needle automatically resets to the standard north-south orientation, visually demonstrating the physical laws of opposite poles attracting between magnets and the existence of the Earth's magnetic field.
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- Φ1.0×0.8m Φ1.0×0.8mDimensions (diameter × height): Φ1.0×0.8m Brand: PopsciCat Model: PopsciCat-ElectroMagnetic-183 1. Materials ①Circular exhibit stand: frame 2mm cold-rolled steel plate, enclosure 2.0mm cold-rolled steel plate with two-tone baked paint, rounded without sharp edges ②Tabletop: Kelaisi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③Description board: acrylic UV high-definition printing, printing the Earth's magnetic field, compass orientation principle and operation steps ④Maintenance opening: 2.0mm cold-rolled plate with lock circular baked paint cover, convenient for magnetic needle and dial inspection and replacement ⑤Protective cover: high-permeability acrylic material, smooth edges, stable structure, dustproof protection for magnetic needle components ⑥Magnetic needle assembly: lightweight high-precision permanent magnetic needle, red and blue partitions marking north and south poles, low-friction suspension rotating shaft ⑦Operation magnet: permanent magnetic block, with stainless steel anti-loss lanyard to prevent loss 2. Main configuration ①Large azimuth dial + suspended magnetic needle assembly ②External permanent magnet operation magnet with lanyard 3. Exhibition requirements ①Energy requirement: no external power supply needed ②Installation foundation: floor-standing direct placement, bottom anti-slip shock-absorbing foot pads, away from large metal and strong magnetic equipment ③Entry passage: door frame dimensions (width × height) ≥1.4m×1.1m, continuous turning interval in passage ≥1.8m ④Maintenance passage: not required
★Exhibit Content: Interactive science popularization experience of the Earth's magnetic field, interaction between magnets, and the principle of compass orientation ★Interaction: Manual magnetic observation interactive demonstration ★Operation: 1. Hold the provided magnet close to the magnetic needle inside the transparent cover, move the magnet, and observe the needle rotating due to magnetic force; 2. Remove the magnet away from the exhibit, and observe the needle automatically returning to its stable original north-pointing state under the Earth's magnetic field. ★Exhibit Description: "Wisdom in the Compass" is a circular tabletop interactive exhibit for basic electromagnetism science popularization, belonging to the magnetism science exhibition area, and is a recommended exhibit by the PopsciCat Exhibit Store. The exhibit features a white and blue circular floor-standing operation table, with a large transparent high-permeability protective cover at the center, containing a high-precision red-blue partitioned magnetic needle and an azimuth dial; on the side, there is a permanent magnet operation magnet with an anti-loss lanyard and an illustrated science description board. Visitors use an external magnet to change the local magnetic field and interfere with the needle's orientation; after removing the magnet, the Earth's magnetic field regains dominance, and the needle returns to the north-south orientation, visually comparing the effects of artificial magnetic fields and the Earth's natural magnetic field on magnets, and explaining the underlying principle of compass navigation. ★Scientific Principle: The Earth itself is a giant natural magnet, with the geomagnetic south pole near the geographic north pole and the geomagnetic north pole near the geographic south pole. A freely suspended magnetic needle is affected by the Earth's magnetic field; when at rest, the S pole points to the geographic south and the N pole points to the geographic north. This is the core principle of compass orientation. When an external permanent magnet approaches the exhibit, the local artificial magnetic field strength is greater than the Earth's magnetic field, and the magnetic needle is attracted and deflected by the external magnet; after removing the external magnet, the artificial magnetic field disappears, the Earth's magnetic field regains dominance, and the needle automatically resets to the standard north-south orientation, visually demonstrating the physical laws of opposite poles attracting between magnets and the existence of the Earth's magnetic field.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★★