Bending Water Stream
★Exhibit Content: Popular science experience of polar molecules and electrostatic induction phenomena ★Interaction: Electromechanical interactive demonstration ★Operation: 1. Press the button to energize any metal sphere; 2. Observe the water stream bending from a vertical state toward the energized metal sphere; 3. Understand the oriented alignment of polar molecules under an electric field and the principle of electrostatic induction. ★Exhibit Description: "Bending Water Stream" is an interactive exhibit for popular science on molecular polarity and electrostatic phenomena, specially designed for physics science exhibition areas, and is also a recommended exhibit of KexMall. The exhibit consists of a faucet and two metal spheres, demonstrating knowledge about polar molecules. After visitors press the button to energize the metal sphere, the originally vertically falling water stream bends toward the energized metal sphere, intuitively presenting the induction and oriented alignment of water molecules in an electric field, helping to understand the characteristics of polar molecules and related knowledge such as "like dissolves like". ★Scientific Principle: A single water molecule itself is polar, with its positive and negative charge centers not coinciding, one side positively charged and the other negatively charged. Macroscopically, water molecules are randomly oriented, their polarities cancel each other out, and the water is overall uncharged. When a high-voltage electrode is energized, the negative charges on the electrode induce the water molecules, causing them to align in an oriented manner. The originally mutually canceling polarities cannot completely cancel out, and the water exhibits a situation where "the side near the electrode is positively charged, and the side away from the electrode is negatively charged." The negatively charged electrode is close to the positively charged part of the water stream and attracts it; it repels the negatively charged part but with a weaker force. Therefore, the water stream as a whole bends toward the electrode.
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- 1.0×0.9×1.8m 1.0×0.9×1.8mDimensions (L×W×H): 1.0×0.9×1.8m Brand: KexMall Model: PopsciCat-ElectroMagnetic-169 1. Materials: ① Exhibit main body: 2.0mm cold-rolled steel plate, surface baked paint (scratch-resistant and wear-resistant) ② Countertop: Kelestone artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Metal spheres and electrodes: stainless steel material, stable electrical conductivity ④ Faucet assembly: safe material, easy to clean and durable ⑤ Transparent protective cover: acrylic material (protects internal device, splash-proof) ⑥ Instruction plate, graphic panel: 5mm acrylic UV printing (including polar molecule principle, operation guide) ⑦ Electrical control box: cold-rolled steel plate baked paint enclosure, switching power supply, high-voltage protection components 2. Main Configuration: ① Water flow simulation device (faucet and water supply system) ② High-voltage electrode and metal sphere assembly ③ Button-type energization control module ④ Transparent protective outer cover 1 set ⑤ Electrical control system: electrical logic control system, equipped with Guanjian® K1 type PLC controller with protection dedicated for science exhibits 3. Installation Requirements: ① Power requirement: AC100-240V, 50/60Hz/300W (standard three-wire socket, reliable grounding) ② Installation method: direct placement, need to set up splash-proof drainage measures ③ Entry passage: door frame dimensions (W×H) ≥1.2m×2.0m, continuous turning interval ≥1.5m ④ Maintenance access: not required
★Exhibit Content: Popular science experience of polar molecules and electrostatic induction phenomena ★Interaction: Electromechanical interactive demonstration ★Operation: 1. Press the button to energize any metal sphere; 2. Observe the water stream bending from a vertical state toward the energized metal sphere; 3. Understand the oriented alignment of polar molecules under an electric field and the principle of electrostatic induction. ★Exhibit Description: "Bending Water Stream" is an interactive exhibit for popular science on molecular polarity and electrostatic phenomena, specially designed for physics science exhibition areas, and is also a recommended exhibit of KexMall. The exhibit consists of a faucet and two metal spheres, demonstrating knowledge about polar molecules. After visitors press the button to energize the metal sphere, the originally vertically falling water stream bends toward the energized metal sphere, intuitively presenting the induction and oriented alignment of water molecules in an electric field, helping to understand the characteristics of polar molecules and related knowledge such as "like dissolves like". ★Scientific Principle: A single water molecule itself is polar, with its positive and negative charge centers not coinciding, one side positively charged and the other negatively charged. Macroscopically, water molecules are randomly oriented, their polarities cancel each other out, and the water is overall uncharged. When a high-voltage electrode is energized, the negative charges on the electrode induce the water molecules, causing them to align in an oriented manner. The originally mutually canceling polarities cannot completely cancel out, and the water exhibits a situation where "the side near the electrode is positively charged, and the side away from the electrode is negatively charged." The negatively charged electrode is close to the positively charged part of the water stream and attracts it; it repels the negatively charged part but with a weaker force. Therefore, the water stream as a whole bends toward the electrode.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★ Overall Rating: ★★★★