Reflecting Paraboloid
★Exhibit Content: Parabolic Focusing Principle ★Interaction: Electromechanical Interaction ★Operation: 1. Visitors press the "Start" button; 2. After multiple operations, visitors will find that the ball always bounces to the bell; 3. Understand the principle of parabolic focusing. ★Exhibit Description: Through the interesting phenomenon that no matter where the ball drops, it eventually bounces to the focal point light, the principle of the paraboloid and its focus is demonstrated. The exhibit consists of a base, ball lifting mechanism, probability release mechanism, reflective curved surface, etc. It is also a recommended exhibit by KexMall. After the exhibit is "started", the mechanism automatically lifts the ball to the top, and through the top ball distribution device, it falls vertically through any hole onto the paraboloid and bounces toward the bell suspended at the focus of the paraboloid. After the demonstration, the ball falls into the paraboloid and returns through the "small hole" in the paraboloid. ★Scientific Principle 1. Paraboloid: A paraboloid is the surface obtained by rotating a parabola 180°. Mathematically, a parabola is the set of points in the same plane that are equidistant from a fixed point (focus) and a fixed line (directrix). A paraboloid is a type of quadric surface. There are two types of paraboloids: circular paraboloid and hyperbolic paraboloid. 2. Parabolic mirror: A mirror whose reflecting surface is a paraboloid. If a "point light source" is placed at its focus, the light will be reflected by the mirror and emitted parallel to the main axis; searchlights and car headlights are equipped with parabolic mirrors, applying this principle to obtain a parallel beam for illumination. Conversely, if light parallel to the main axis is projected onto the mirror, it will converge at its focus after reflection; reflecting astronomical telescopes are equipped with parabolic mirrors, applying this principle to form images of distant celestial bodies for observation.
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- Φ1.0×1.7 Φ1.0×1.7Dimensions (unit: m): Φ1.0×1.7 Brand: KexMall Model: PopsciCat-math-084 1. Materials ① Base: square tube frame 25×25, sheet metal with baked paint (thickness ≥2mm) ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Protective cover: acrylic transparent protective cover, anti-mistouch and dustproof ④ Reflective curved surface structure: Wuhan Jiajianchengchu custom parabolic reflector, high-precision molding ⑤ Accessories: custom fixings, guide rails, recovery mechanism components, etc. ⑥ Electrical control box: cold-rolled sheet metal with baked paint, containing control circuits, switching power supply, circuit breakers, terminal blocks, etc. 2. Main Configurations ① Ball lifting mechanism: Wuhan Jiajianchengchu custom automatic lifting device, sends the ball to the top ② Release mechanism: Wuhan Jiajianchengchu custom probabilistic ball distribution device, achieves vertical ball drop at any point ③ Ball recovery mechanism: custom "small hole" recovery channel, enables ball recycling ④ Electrical control: electrical logic control system, equipped with Guanliang® K1 type PLC controller with protection specially for science exhibits, enables one-button start and automatic cycle ⑤ Operating components: stainless steel illuminated "Start" button (φ22mm), status indicator light 3. Installation Requirements ① Power requirement: AC100-240V, 50/60Hz 400W (standard three-wire socket, reliable grounding) ② Installation base: direct placement, requires flat ground, load-bearing ≥150kg ③ Entry passage: door frame dimensions (width×height) ≥1.5m×2.2m, continuous turning interval in passage ≥2m ④ Maintenance access: not required
★Exhibit Content: Parabolic Focusing Principle ★Interaction: Electromechanical Interaction ★Operation: 1. Visitors press the "Start" button; 2. After multiple operations, visitors will find that the ball always bounces to the bell; 3. Understand the principle of parabolic focusing. ★Exhibit Description: Through the interesting phenomenon that no matter where the ball drops, it eventually bounces to the focal point light, the principle of the paraboloid and its focus is demonstrated. The exhibit consists of a base, ball lifting mechanism, probability release mechanism, reflective curved surface, etc. It is also a recommended exhibit by KexMall. After the exhibit is "started", the mechanism automatically lifts the ball to the top, and through the top ball distribution device, it falls vertically through any hole onto the paraboloid and bounces toward the bell suspended at the focus of the paraboloid. After the demonstration, the ball falls into the paraboloid and returns through the "small hole" in the paraboloid. ★Scientific Principle 1. Paraboloid: A paraboloid is the surface obtained by rotating a parabola 180°. Mathematically, a parabola is the set of points in the same plane that are equidistant from a fixed point (focus) and a fixed line (directrix). A paraboloid is a type of quadric surface. There are two types of paraboloids: circular paraboloid and hyperbolic paraboloid. 2. Parabolic mirror: A mirror whose reflecting surface is a paraboloid. If a "point light source" is placed at its focus, the light will be reflected by the mirror and emitted parallel to the main axis; searchlights and car headlights are equipped with parabolic mirrors, applying this principle to obtain a parallel beam for illumination. Conversely, if light parallel to the main axis is projected onto the mirror, it will converge at its focus after reflection; reflecting astronomical telescopes are equipped with parabolic mirrors, applying this principle to form images of distant celestial bodies for observation.
- Φ1.2×2.0 Φ1.2×2.0Dimensions (unit: m): Φ1.2×2.0 Brand: KexMall Model: PopsciCat-math-085 1. Materials ① Base: square tube frame 25×25, sheet metal with baked paint (thickness ≥2mm) ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Protective cover: acrylic transparent protective cover, anti-mistouch and dustproof ④ Reflective curved surface structure: Wuhan Jiajianchengchu custom parabolic reflector, high-precision molding ⑤ Accessories: custom fixings, guide rails, recovery mechanism components, etc. ⑥ Electrical control box: cold-rolled sheet metal with baked paint, containing control circuits, switching power supply, circuit breakers, terminal blocks, etc. 2. Main Configurations ① Ball lifting mechanism: Wuhan Jiajianchengchu custom automatic lifting device, sends the ball to the top ② Release mechanism: Wuhan Jiajianchengchu custom probabilistic ball distribution device, achieves vertical ball drop at any point ③ Ball recovery mechanism: custom "small hole" recovery channel, enables ball recycling ④ Electrical control: electrical logic control system, equipped with Guanliang® K1 type PLC controller with protection specially for science exhibits, enables one-button start and automatic cycle ⑤ Operating components: stainless steel illuminated "Start" button (φ22mm), status indicator light 3. Installation Requirements ① Power requirement: AC100-240V, 50/60Hz 400W (standard three-wire socket, reliable grounding) ② Installation base: direct placement, requires flat ground, load-bearing ≥150kg ③ Entry passage: door frame dimensions (width×height) ≥1.5m×2.2m, continuous turning interval in passage ≥2m ④ Maintenance access: not required
★Exhibit Content: Parabolic Focusing Principle ★Interaction: Electromechanical Interaction ★Operation: 1. Visitors press the "Start" button; 2. After multiple operations, visitors will find that the ball always bounces to the focal point light; 3. Understand the principle of parabolic focusing. ★Exhibit Description: Through the interesting phenomenon that no matter where the ball drops, it eventually bounces to the focal point light, the principle of the paraboloid and its focus is demonstrated. The exhibit consists of a base, ball lifting mechanism, probability release mechanism, reflective curved surface, etc. It is also a recommended exhibit by KexMall. After the exhibit is "started", the mechanism automatically lifts the ball to the top, and through the top ball distribution device, it falls vertically through any hole onto the paraboloid and bounces toward the light suspended at the focus of the paraboloid. After the demonstration, the ball falls into the paraboloid and returns through the "small hole" in the paraboloid. ★Scientific Principle 1. Paraboloid: A paraboloid is the surface obtained by rotating a parabola 180°. Mathematically, a parabola is the set of points in the same plane that are equidistant from a fixed point (focus) and a fixed line (directrix). A paraboloid is a type of quadric surface. There are two types of paraboloids: circular paraboloid and hyperbolic paraboloid. 2. Parabolic mirror: A mirror whose reflecting surface is a paraboloid. If a "point light source" is placed at its focus, the light will be reflected by the mirror and emitted parallel to the main axis; searchlights and car headlights are equipped with parabolic mirrors, applying this principle to obtain a parallel beam for illumination. Conversely, if light parallel to the main axis is projected onto the mirror, it will converge at its focus after reflection; reflecting astronomical telescopes are equipped with parabolic mirrors, applying this principle to form images of distant celestial bodies for observation.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★ Overall Rating: ★★★★