Dancing Ball (Bernoulli Floating Ball)
★Exhibit Content: Bernoulli's Principle ★Interaction: Electromechanical Interaction ★Operation: 1. Press the start button; 2. Place the small ball at the center of the air outlet of the tube, slowly release your hand, and observe the levitation phenomenon. ★Exhibit Description: The exhibit features a large truncated cone with a pot-like depression in the middle, containing several small plastic balls. Children can gather around the cone. Three vertical tubes extend from the depressed part. Inside the base, there is a blower that blows air outward through the tubes, with the air blowing vertically upward. Carefully place the small ball at the center of the air outlet of the tube, slowly release your hand, and the ball will hover at the air outlet. By observing the circular motion of the ball driven by the airflow, one can understand the relationship between flow velocity and pressure in fluids. ★Scientific Principle: Bernoulli's theorem was discovered in 1738 by Daniel Bernoulli, known as the "father of fluid mechanics." According to Bernoulli's theorem, the vertical airflow creates pressure inside the tube, and the ball levitates in the air under Bernoulli's effect. When the ball is placed above the air outlet, the airflow lifts it upward, causing it to levitate. This is because the airflow velocity is high; according to Bernoulli's principle, the pressure at the center of the airflow is lower, while the surrounding air pressure is higher. The surrounding air flows toward the center of the airflow, creating an upward lifting force that keeps the ball suspended.
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- Φ1.2*0.8m Φ1.2*0.8mDimensions (unit: m): Φ1.2*0.8m Brand: KexMall Model: PopsciCat-mechanics-151 1. Materials: ① Base: frame 2mm cold-rolled steel, enclosure 2.0mm cold-rolled steel with two-tone baked paint, rounded without sharp edges ② Tabletop: Compact board, thickness ≥10mm ③ Signage and graphics: acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled steel with baked paint ⑤ Electrical control box: cold-rolled steel with baked paint, containing control circuits, switching power supply, circuit breakers, terminal blocks, etc. 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with Inertia® K3 high-power PLC controller with protection specially for science exhibits ② Buttons: self-resetting 22mm stainless steel metal buttons with ring lights; LED voltage not higher than 12V ③ Fan: silent fan. 3. Installation Requirements: ① Power supply: AC100-240V, 50/60Hz 500W (standard three-wire socket) ② Installation base: place directly ③ Entry passage: no requirements ④ Maintenance access: not required
★Exhibit Content: Bernoulli's Principle ★Interaction: Electromechanical Interaction ★Operation: 1. Press the start button; 2. Place the small ball at the center of the air outlet of the tube, slowly release your hand, and observe the levitation phenomenon. ★Exhibit Description: The exhibit features a large truncated cone with a pot-like depression in the middle, containing several small plastic balls. Children can gather around the cone. Three vertical tubes extend from the depressed part. Inside the base, there is a blower that blows air outward through the tubes, with the air blowing vertically upward. Carefully place the small ball at the center of the air outlet of the tube, slowly release your hand, and the ball will hover at the air outlet. By observing the circular motion of the ball driven by the airflow, one can understand the relationship between flow velocity and pressure in fluids. ★Scientific Principle: Bernoulli's theorem was discovered in 1738 by Daniel Bernoulli, known as the "father of fluid mechanics." According to Bernoulli's theorem, the vertical airflow creates pressure inside the tube, and the ball levitates in the air under Bernoulli's effect. When the ball is placed above the air outlet, the airflow lifts it upward, causing it to levitate. This is because the airflow velocity is high; according to Bernoulli's principle, the pressure at the center of the airflow is lower, while the surrounding air pressure is higher. The surrounding air flows toward the center of the airflow, creating an upward lifting force that keeps the ball suspended.
- Φ1.2*1.2m · Style 1 Φ1.2*1.2mDimensions (unit: m): Φ1.2*1.2m Brand: KexMall Model: PopsciCat-mechanics-152 1. Materials: ① Base: frame 2mm cold-rolled steel, enclosure 2.0mm cold-rolled steel with two-tone baked paint, rounded without sharp edges ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Signage and graphics: acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled steel with baked paint ⑤ Electrical control box: cold-rolled steel with baked paint, containing control circuits, switching power supply, circuit breakers, terminal blocks, etc. 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with Inertia® K3 high-power PLC controller with protection specially for science exhibits ② Buttons: self-resetting 22mm stainless steel metal buttons with ring lights; LED voltage not higher than 12V ③ Fan: silent fan. 3. Installation Requirements: ① Power supply: AC100-240V, 50/60Hz 500W (standard three-wire socket) ② Installation base: place directly ③ Entry passage: no requirements ④ Maintenance access: not required
★Exhibit Content: Bernoulli's Principle ★Interaction: Electromechanical Interaction ★Operation: 1. Press the start button; 2. Place the small ball at the center of the air outlet of the tube, slowly release your hand, and observe the levitation phenomenon. ★Exhibit Description: The exhibit features three tubes. Inside the base, there is a blower that blows air outward through the tubes, with the air blowing vertically upward. Carefully place the small ball at the center of the air outlet of the tube, slowly release your hand, and the ball will hover at the air outlet. By observing the circular motion of the ball driven by the airflow, one can understand the relationship between flow velocity and pressure in fluids. ★Scientific Principle: Bernoulli's theorem was discovered in 1738 by Daniel Bernoulli, known as the "father of fluid mechanics." According to Bernoulli's theorem, the vertical airflow creates pressure inside the tube, and the ball levitates in the air under Bernoulli's effect. When the ball is placed above the air outlet, the airflow lifts it upward, causing it to levitate. This is because the airflow velocity is high; according to Bernoulli's principle, the pressure at the center of the airflow is lower, while the surrounding air pressure is higher. The surrounding air flows toward the center of the airflow, creating an upward lifting force that keeps the ball suspended.
- Φ1.2*1.2m · Style 2 Φ1.2*1.2mDimensions (unit: m): Φ1.2*1.2m Brand: KexMall Model: PopsciCat-mechanics-153 1. Materials: ① Base: frame 2mm cold-rolled steel, enclosure 2.0mm cold-rolled steel with two-tone baked paint, rounded without sharp edges ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Signage and graphics: acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled steel with baked paint ⑤ Electrical control box: cold-rolled steel with baked paint, containing control circuits, switching power supply, circuit breakers, terminal blocks, etc. 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with Inertia® K3 high-power PLC controller with protection specially for science exhibits ② Buttons: self-resetting 22mm stainless steel metal buttons with ring lights; LED voltage not higher than 12V ③ Fan: silent fan. 3. Installation Requirements: ① Power supply: AC100-240V, 50/60Hz 500W (standard three-wire socket) ② Installation base: place directly ③ Entry passage: no requirements ④ Maintenance access: not required
★Exhibit Content: Bernoulli's Principle ★Interaction: Electromechanical Interaction ★Operation: 1. Press the start button; 2. Place the small ball at the center of the air outlet of the tube, slowly release your hand, and observe the levitation phenomenon; 3. Rotate the metal ring to see if it can pass through the suspended ball. ★Exhibit Description: The exhibit features 4 tubes. Inside the base, there is a blower that blows air outward through the tubes, with the air blowing vertically upward. Carefully place the small ball at the center of the air outlet of the tube, slowly release your hand, and the ball will hover at the air outlet. By observing the circular motion of the ball driven by the airflow, one can understand the relationship between flow velocity and pressure in fluids. ★Scientific Principle: Bernoulli's theorem was discovered in 1738 by Daniel Bernoulli, known as the "father of fluid mechanics." According to Bernoulli's theorem, the vertical airflow creates pressure inside the tube, and the ball levitates in the air under Bernoulli's effect. When the ball is placed above the air outlet, the airflow lifts it upward, causing it to levitate. This is because the airflow velocity is high; according to Bernoulli's principle, the pressure at the center of the airflow is lower, while the surrounding air pressure is higher. The surrounding air flows toward the center of the airflow, creating an upward lifting force that keeps the ball suspended.
- Φ1.2*0.9m Φ1.2*0.9mDimensions (unit: m): Φ1.2*0.9m Brand: KexMall Model: PopsciCat-mechanics-154 1. Materials: ① Base: frame 2mm cold-rolled steel, enclosure 2.0mm cold-rolled steel with two-tone baked paint, rounded without sharp edges ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Signage and graphics: acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled steel with baked paint ⑤ Electrical control box: cold-rolled steel with baked paint, containing control circuits, switching power supply, circuit breakers, terminal blocks, etc. 2. Main Configuration: ① Electrical control: electrical logic control system, equipped with Inertia® K3 high-power PLC controller with protection specially for science exhibits ② Buttons: self-resetting 22mm stainless steel metal buttons with ring lights; LED voltage not higher than 12V ③ Fan: silent fan. 3. Installation Requirements: ① Power supply: AC100-240V, 50/60Hz 500W (standard three-wire socket) ② Installation base: place directly ③ Entry passage: no requirements ④ Maintenance access: not required
★Exhibit Content: Bernoulli's Principle ★Interaction: Electromechanical Interaction ★Operation: 1. Press the start button; 2. Place the small ball at the center of the air outlet of the tube, slowly release your hand, and observe the levitation phenomenon. ★Exhibit Description: The exhibit features 4 tubes. Inside the base, there is a blower that blows air outward through the tubes, with the air blowing vertically upward. Carefully place the small ball at the center of the air outlet of the tube, slowly release your hand, and the ball will hover at the air outlet. By observing the circular motion of the ball driven by the airflow, one can understand the relationship between flow velocity and pressure in fluids. ★Scientific Principle: Bernoulli's theorem was discovered in 1738 by Daniel Bernoulli, known as the "father of fluid mechanics." According to Bernoulli's theorem, the vertical airflow creates pressure inside the tube, and the ball levitates in the air under Bernoulli's effect. When the ball is placed above the air outlet, the airflow lifts it upward, causing it to levitate. This is because the airflow velocity is high; according to Bernoulli's principle, the pressure at the center of the airflow is lower, while the surrounding air pressure is higher. The surrounding air flows toward the center of the airflow, creating an upward lifting force that keeps the ball suspended.
Review
Principle Display: ★★★★★ Interaction Effect: ★★★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★★★