Lift It If You Can
★Exhibit Content: Friction ★Interaction: Mechanical Interaction ★Operation: Grasp each of the 6 cones separately and compare which one is the hardest to pick up. ★Exhibit Description: The exhibit consists of a display stand and cones. The 6 cones have different apex angles. Visitors can grasp them individually to test which cone is easy to grasp and which is difficult. Grasping the cone from above can only rely on friction. The smaller the apex angle of the cone, the greater the friction when grasped, making it easier to grasp; conversely, it is more difficult. ★Scientific Principle: Why is it that the smaller the apex angle of the cone, the greater the friction when grasped? Because to grasp the cone, fingers must be closed inward, and the direction of force is nearly horizontal. Under the condition of a constant coefficient of friction, the magnitude of friction is proportional to the normal force applied to the cone's surface. The larger the apex angle of the cone, the greater the horizontal component of force, meaning the smaller the normal force perpendicular to the cone's surface, so grasping becomes more difficult.
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- 0.9*0.6*0.8 0.9*0.6*0.8Dimensions (unit: m): 0.9*0.6*0.8 Brand: KexMall Model: PopsciCat-mechanics-164 1. Materials: ① Display stand: frame 2mm cold-rolled steel plate, enclosure 2.0mm cold-rolled steel plate with two-tone baked paint, smooth and without sharp edges ② Tabletop: Kelaisi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Instruction sign, graphic panel: acrylic UV inkjet printing ④ Maintenance door: 2.0mm cold-rolled steel plate with baked paint surface ⑤ Cones: integrally molded, with steel wire hanging underneath 2. Main configuration: None 3. Installation requirements: ① Energy requirement: None ② Installation base: place directly ③ Entry passage: door frame size (width × height) ≧0.8m×1.8m, continuous turning interval ≧1.5m ④ Maintenance access: Not required
★Exhibit Content: Friction ★Interaction: Mechanical Interaction ★Operation: Grasp each of the 6 cones separately and compare which one is the hardest to pick up. ★Exhibit Description: The exhibit consists of a display stand and cones. The 6 cones have different apex angles. Visitors can grasp them individually to test which cone is easy to grasp and which is difficult. Grasping the cone from above can only rely on friction. The smaller the apex angle of the cone, the greater the friction when grasped, making it easier to grasp; conversely, it is more difficult. ★Scientific Principle: Why is it that the smaller the apex angle of the cone, the greater the friction when grasped? Because to grasp the cone, fingers must be closed inward, and the direction of force is nearly horizontal. Under the condition of a constant coefficient of friction, the magnitude of friction is proportional to the normal force applied to the cone's surface. The larger the apex angle of the cone, the greater the horizontal component of force, meaning the smaller the normal force perpendicular to the cone's surface, so grasping becomes more difficult.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★★