Bubble Puller (Surface Tension of Water)
★Exhibit Content: Demonstration of bubble surface tension and thin-film interference ★Operation: 1. Pull the ropes on both sides of the exhibit; 2. Form a bubble curtain and observe the demonstration effect of generating large bubbles. ★Exhibit Description: The exhibit is a vertical frame interactive device, consisting of a base with a liquid reservoir, metal support columns, a top main unit, a traction rope assembly, and a bubble curtain frame. It is a recommended exhibit from the KexMall. Visitors pull the ropes on both sides to immerse the bubble curtain frame into the bubble solution and pull it up to form a complete bubble curtain. With the aid of airflow, multiple large bubbles can be generated. The bubble surface displays brilliant and varied interference colors. The device is simple and safe to operate, suitable for a wide range of visitors. Through fun interaction, it guides visitors to observe the process of bubble formation and expansion, and intuitively understand scientific knowledge related to liquid surface tension. ★Scientific Principle: The formation of bubbles relies on liquid surface tension. The surfactants in the bubble solution enhance the toughness of the water film, allowing the film to be stretched into a large-area bubble curtain. When airflow acts on the bubble curtain, air fills the interior of the film, causing bubbles to separate and form. The colorful colors on the bubble surface come from the thin-film interference effect. When light irradiates an extremely thin water film, the reflected light from the front and back surfaces interferes and superimposes, thereby displaying constantly changing colorful patterns, allowing visitors to intuitively understand the basic principles of optical interference.
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- 1.5×0.6×1.9m 1.5×0.6×1.9mDimensions (L×W×H): 1.5×0.6×1.9m Brand: KexMall Model: PopsciCat-Ecological-009 1. Materials: ① Base: SUS304 stainless steel, galvanized sheet with powder coating ② Support columns: SUS304 stainless steel tubes, seamless pipes ③ Bubble curtain frame: Corrosion-resistant engineering plastic ④ Traction rope: Wear-resistant high-strength nylon rope ⑤ Instruction sign: 5mm thick acrylic UV printing 2. Main configuration: ① Electrical control: Electrical logic control system, special protective controller for science exhibits ② Fan module: Low-power silent fan, AC100-240V, 50/60Hz, power 30W ③ Bubble solution reservoir: Large-capacity corrosion-resistant sealed liquid chamber ④ Rope linkage mechanical transmission assembly: Limit buffer structure ⑤ Switching power supply: DC24V output power supply ⑥ Built-in electrical control box: Integrated circuit breaker, terminal block module 3. Installation requirements: ① Power supply: AC100-240V, 50/60Hz 100W (standard three-wire socket) ② Installation method: Exhibit placed directly on the floor, floor kept level ③ Entry passage: Door frame dimensions (W×H) ≥1.8m×2.1m, continuous turning interval ≥2.5m ④ Maintenance space: Not required
★Exhibit Content: Demonstration of bubble surface tension and thin-film interference ★Operation: 1. Pull the ropes on both sides of the exhibit; 2. Form a bubble curtain and observe the demonstration effect of generating large bubbles. ★Exhibit Description: The exhibit is a vertical frame interactive device, consisting of a base with a liquid reservoir, metal support columns, a top main unit, a traction rope assembly, and a bubble curtain frame. It is a recommended exhibit from the KexMall. Visitors pull the ropes on both sides to immerse the bubble curtain frame into the bubble solution and pull it up to form a complete bubble curtain. With the aid of airflow, multiple large bubbles can be generated. The bubble surface displays brilliant and varied interference colors. The device is simple and safe to operate, suitable for a wide range of visitors. Through fun interaction, it guides visitors to observe the process of bubble formation and expansion, and intuitively understand scientific knowledge related to liquid surface tension. ★Scientific Principle: The formation of bubbles relies on liquid surface tension. The surfactants in the bubble solution enhance the toughness of the water film, allowing the film to be stretched into a large-area bubble curtain. When airflow acts on the bubble curtain, air fills the interior of the film, causing bubbles to separate and form. The colorful colors on the bubble surface come from the thin-film interference effect. When light irradiates an extremely thin water film, the reflected light from the front and back surfaces interferes and superimposes, thereby displaying constantly changing colorful patterns, allowing visitors to intuitively understand the basic principles of optical interference.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★ Overall Rating: ★★★★