Surface Area of a Sphere
★Exhibit Content: Interactive science popularization experience of the formula for the surface area of a sphere and geometric principles ★Interaction: Mechanical interaction + experimental verification ★Operation: 1. Visitors approach the exhibit and read the operation instructions; 2. Turn the flip-board device to switch the liquid between the spherical container and the four circular containers; 3. Observe the liquid filling to understand the relationship between the surface area of a sphere and the area of circles with the same radius. ★Exhibit Description: The exhibit consists of a flip-board device, support, and display stand. Through a set of flip-board devices, the formula S(sphere) = 4πr^2 is verified. Visitors can flip the boards to switch the liquid between the four circular containers and the spherical surface container. It is a recommended exhibit by PopsciCat Exhibit Store. ★Scientific Principle: The formula for the surface area of a sphere is S(sphere) = 4πr^2, where r is the radius of the sphere. In this exhibit, the diameters of the four small circles on the flip board are equal to the diameter of the sphere, and the thickness of the small circular containers is also equal to that of the spherical container. When the flat board is flipped to pour the liquid from the spherical surface into the four small circular containers, the liquid exactly fills them, visually verifying that the surface area of a sphere is equal to the sum of the areas of four circles with the same radius.
Options
- 0.7×0.7×1.2m 0.7×0.7×1.2mDimensions: 0.7×0.7×1.2m Brand: PopsciCat Model: PopsciCat-math-110 1. Materials: ① Main stand: Q235-1.5mm sheet metal with baked paint ② Tabletop: 12mm Kelesi artificial stone tabletop (waterproof, wear-resistant, easy to clean) ③ Flip-board device: acrylic or metal material, smooth rotation, good sealing performance ④ Container components: transparent acrylic material, easy to observe liquid filling ⑤ Instruction sign: 5mm acrylic UV printing, clear graphics and text 2. Main configuration: ① Flip-board device: 1 set ② Spherical container: 1 piece ③ Small circular containers: 4 pieces ④ Liquid component: 1 set (sealed design, no leakage) ⑤ Support and display stand: 1 set 3. Exhibition requirements: ① Energy requirement: None ② Installation foundation: Floor placement, direct placement ③ Entry passage: Door frame size (width×height) ≥0.9m×1.4m, continuous turning interval in passage ≥1.5m ④ Maintenance access: Not required
★Exhibit Content: Interactive science popularization experience of the formula for the surface area of a sphere and geometric principles ★Interaction: Mechanical interaction + experimental verification ★Operation: 1. Visitors approach the exhibit and read the operation instructions; 2. Turn the flip-board device to switch the liquid between the spherical container and the four circular containers; 3. Observe the liquid filling to understand the relationship between the surface area of a sphere and the area of circles with the same radius. ★Exhibit Description: The exhibit consists of a flip-board device, support, and display stand. Through a set of flip-board devices, the formula S(sphere) = 4πr^2 is verified. Visitors can flip the boards to switch the liquid between the four circular containers and the spherical surface container. It is a recommended exhibit by PopsciCat Exhibit Store. ★Scientific Principle: The formula for the surface area of a sphere is S(sphere) = 4πr^2, where r is the radius of the sphere. In this exhibit, the diameters of the four small circles on the flip board are equal to the diameter of the sphere, and the thickness of the small circular containers is also equal to that of the spherical container. When the flat board is flipped to pour the liquid from the spherical surface into the four small circular containers, the liquid exactly fills them, visually verifying that the surface area of a sphere is equal to the sum of the areas of four circles with the same radius.
Review
Principle Display: ★★★★ Interaction Effect: ★★★ Ease of Installation: ★★★★★ Durability: ★★ Overall Rating: ★★★