Ocean-Wave Seesaw
★Exhibit Content: Interactive physics experience of lever balance, liquid inertia, and wave formation ★Interaction: Pure mechanical interaction ★Operation: Two participants sit at either end of the seesaw, hold the anti-slip grips, and play up and down. The water tank tilts and bumps accordingly, causing the liquid inside to churn violently, visually presenting the effect of waves crashing on the shore. ★Exhibit Description: The main body of the exhibit is a specially designed rectangular seesaw, with its lever part designed as a transparent sealed water tank filled with two immiscible liquids (the upper liquid is transparent, the lower liquid is sea blue). When two participants sit at either end of the seesaw and play up and down, the water tank tilts and bumps, and the liquid inside churns and hits the tank walls, simulating the visual effect of waves crashing and surging. ★Scientific Principle: 1. Lever balance and center of gravity shift: A seesaw is a typical lever, and balance depends on equal torques at both ends. When the liquid in the tank flows with the tilt, the mass distribution of the liquid changes, causing the overall center of gravity to shift, affecting the balance state of the seesaw. Participants need to constantly adjust their force to maintain the game rhythm. 2. Liquid inertia: A stationary liquid has the inertia to maintain its original state of motion. When the seesaw suddenly changes its tilt direction, the water body will continue to surge in the original direction due to inertia, producing a 'slapping' effect, which is the mechanical basis of wave formation. 3. Wave formation: The presence of two immiscible liquids (such as water and oil, or water and air) forms a clear interface. When the water tank shakes, fluctuations occur at the interface; after the water body hits the tank wall, it reflects and superimposes with subsequent fluctuations, forming complex wave patterns. The movement of the blue water body clearly demonstrates the propagation, reflection, and interference phenomena of waves. 4. Pressure and flow velocity: The greater the liquid depth, the greater the hydrostatic pressure; the flow velocity changes with the shape of the channel, reflecting the prototype of Bernoulli's principle in fluid mechanics.
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- 3.0×0.4×0.7 3.0×0.4×0.7Dimensions (unit: m) 3.0×0.4×0.7 Brand: KexMall Model: PopsciCat-mechanics-189 1. Materials ① Seesaw main body: Q235-2.5mm sheet metal frame (gray base, scratch-resistant and wear-resistant) ② Water tank assembly: Transparent acrylic sealed water tank (with built-in transparent and sea blue layered liquids, leak-proof seal) ③ Seat/grip: Orange anti-slip grip ④ Instruction sign, graphic panel: Acrylic UV printing ⑤ Auxiliary materials: Stainless steel rotating shaft, shock-absorbing foot pads, sealing strips 2. Main configuration ① Core device: Sealed layered liquid water tank (transparent + sea blue liquid) ② Lever system: Seesaw frame, rotating shaft, balance adjustment components ③ Interactive devices: Anti-slip grips, seats 3. Layout requirements ① Energy requirement: None (pure mechanical interaction, no electric drive needed) ② Installation method: Direct placement (with anti-slip shock-absorbing foot pads at the bottom to enhance stability) ③ Entry passage: Door frame size (width×height) ≥3.4m×1.0m, continuous turning interval in passage ≥2m ④ Maintenance access: Not required
★Exhibit Content: Interactive physics experience of lever balance, liquid inertia, and wave formation ★Interaction: Pure mechanical interaction ★Operation: Two participants sit at either end of the seesaw, hold the anti-slip grips, and play up and down. The water tank tilts and bumps accordingly, causing the liquid inside to churn violently, visually presenting the effect of waves crashing on the shore. ★Exhibit Description: The main body of the exhibit is a specially designed rectangular seesaw, with its lever part designed as a transparent sealed water tank filled with two immiscible liquids (the upper liquid is transparent, the lower liquid is sea blue). When two participants sit at either end of the seesaw and play up and down, the water tank tilts and bumps, and the liquid inside churns and hits the tank walls, simulating the visual effect of waves crashing and surging. ★Scientific Principle: 1. Lever balance and center of gravity shift: A seesaw is a typical lever, and balance depends on equal torques at both ends. When the liquid in the tank flows with the tilt, the mass distribution of the liquid changes, causing the overall center of gravity to shift, affecting the balance state of the seesaw. Participants need to constantly adjust their force to maintain the game rhythm. 2. Liquid inertia: A stationary liquid has the inertia to maintain its original state of motion. When the seesaw suddenly changes its tilt direction, the water body will continue to surge in the original direction due to inertia, producing a 'slapping' effect, which is the mechanical basis of wave formation. 3. Wave formation: The presence of two immiscible liquids (such as water and oil, or water and air) forms a clear interface. When the water tank shakes, fluctuations occur at the interface; after the water body hits the tank wall, it reflects and superimposes with subsequent fluctuations, forming complex wave patterns. The movement of the blue water body clearly demonstrates the propagation, reflection, and interference phenomena of waves. 4. Pressure and flow velocity: The greater the liquid depth, the greater the hydrostatic pressure; the flow velocity changes with the shape of the channel, reflecting the prototype of Bernoulli's principle in fluid mechanics.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★ Durability: ★★★★ Overall Rating: ★★★★