The Flying Bowl
Operation: 1. Place the "bowl" in the designated position; 2. Press the "Start" button and observe the changes in the bowl's state. Functional Overview: This exhibit consists of a display box, an instruction sign, a support frame, a fan, a control system, and a bowl model. When visitors press the start button, it demonstrates the following phenomenon: a bowl-shaped hemisphere, lifted by the force of the wind, rises into the air, just like a flying bowl suspended in midair. Scientific Principle: Why does the bowl fly? According to Bernoulli's principle: the faster the fluid flow, the lower the pressure; the slower the flow, the higher the pressure. When the fan starts, the vertical upward airflow lifts the bowl and moves it upward along the center of the airflow. The airflow at the bottom of the bowl is fast and the pressure is low, so it can hover steadily in the air. In daily life, the lift that makes airplanes fly, the banana kick in football, and the curve ball in table tennis are all applications of Bernoulli's principle. The discovery of Bernoulli's principle is of great significance for humanity's understanding of the characteristics and laws of fluids.
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- 0.9×0.6×1.10 0.9×0.6×1.10Overall Dimensions: 0.9×0.6×1.10 Brand: KexMall Model: PopsciCat-Medium-064 Materials: ①Base: 2.0mm cold-rolled steel plate, dimensions not less than 0.75×0.45×0.7m, surface baked paint (or electrostatic powder coating), reserved floor feet for later height adjustment and four-corner balance, reserved pin-type AC female socket position for power supply to electrical exhibits ②Tabletop: high-quality flame-retardant fiberglass material, total thickness with edge ≧100mm ③Instruction sign: acrylic UV high-precision inkjet printing, thickness ≧3mm ④Maintenance door: 2.0mm cold-rolled steel plate, surface baked paint (or electrostatic powder coating) Main Configuration: ①Electronic control: electrical logic control system, equipped with Guanjian® K1 type PLC controller with protection specially for science exhibits ②Switching power supply: AC-DC S-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③Button: self-resetting 22mm stainless steel metal button with ring light; LED voltage not higher than 12V to avoid high-voltage leakage risk; mechanical life: 1 million times; protection level: IP67; protection method: waterproof. ④Water pump: specially made fishing pump Energy Requirements: AC100-240V, 50/60Hz 200W (standard three-wire socket)
Operation: 1. Place the "bowl" in the designated position; 2. Press the "Start" button and observe the changes in the bowl's state. Functional Overview: This exhibit consists of a display box, an instruction sign, a support frame, a fan, a control system, and a bowl model. When visitors press the start button, it demonstrates the following phenomenon: a bowl-shaped hemisphere, lifted by the force of the wind, rises into the air, just like a flying bowl suspended in midair. Scientific Principle: Why does the bowl fly? According to Bernoulli's principle: the faster the fluid flow, the lower the pressure; the slower the flow, the higher the pressure. When the fan starts, the vertical upward airflow lifts the bowl and moves it upward along the center of the airflow. The airflow at the bottom of the bowl is fast and the pressure is low, so it can hover steadily in the air. In daily life, the lift that makes airplanes fly, the banana kick in football, and the curve ball in table tennis are all applications of Bernoulli's principle. The discovery of Bernoulli's principle is of great significance for humanity's understanding of the characteristics and laws of fluids.