One Percent
★Exhibit Content: Manual interactive experience for science popularization of small probability events and mathematical statistics probability ★Interaction: Manual rotation of transparent drum with balls for observation and interaction ★Operation: Manually rotate the transparent drum. The vast majority of balls inside are white, with only a very small number of differently colored balls. Rotate multiple times to observe whether you can find the differently colored balls; repeat the experiment to experience the characteristics of small probability events that are almost impossible to occur in a single trial but will inevitably occur in a large number of repeated trials. ★Exhibit Description: "One Percent" is a circular tabletop science exhibit on the theme of probability and statistics, belonging to the mathematical statistics mathematics exhibition area. It is a basic probability teaching exhibit for science museums and a recommended exhibit of the PopsciCat Exhibit Store. The exhibit features a white and blue circular floor-standing operation table, with a transparent rotatable spherical drum supported by a yellow bracket on the tabletop. The drum is filled with a large number of white balls, mixed with a small number of differently colored balls to simulate a 1% low-probability event; an acrylic science explanation sign is laid on the tabletop, clearly explaining the definition of small probability events and life examples. Visitors simulate a large number of repeated trials by repeatedly rotating the drum, intuitively experiencing the statistical law that low-probability events are difficult to occur in a single trial but will definitely occur in long-term repeated trials, concretizing abstract probability concepts. ★Scientific Principle: Definition of small probability event: an event whose probability of occurrence approaches infinitely close to 0, almost impossible to occur in a single trial, but according to the law of large numbers, it will inevitably occur under a large number of repeated trials. The proportion of differently colored balls in the exhibit drum is extremely low, corresponding to small probability events in life, such as winning the lottery, lightning strikes, foreign body choking, etc.; such events have an extremely low probability of occurring in a single trial, but will definitely occur when the total sample size is large enough, helping visitors understand the application of probability and statistics in real life and establish scientific risk cognition.
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- Φ1.0×1.2m Φ1.0×1.2mDimensions (diameter × height): Φ1.0×1.2m Brand: PopsciCat Model: PopsciCat-math-131 1. Materials ①Circular exhibit stand: frame 2mm cold-rolled steel plate, enclosure 2.0mm cold-rolled steel plate with two-tone baked paint ②Tabletop: Kelaisi artificial stone, thickness ≥12mm, waterproof and wear-resistant ③Rotating drum: high-transparency integrally formed acrylic spherical drum, sealed to prevent balls from falling out, smooth rotation damping ④Support bracket: ABS integrally formed yellow bracket, metal rotating shaft structure, stable load-bearing ⑤Experimental balls: wear-resistant PE solid balls, divided into white main balls and a small number of differently colored marker balls ⑥Explanation sign: acrylic UV high-definition inkjet printing, printing the definition of small probability events, life cases, and operation steps ⑦Maintenance opening: circular access door with lock on the side of the cabinet, convenient for replenishing and sorting balls 2. Main Configuration ①Circular weighted load-bearing operation table assembly ②Yellow bracket damped rotating transparent spherical drum ③Multi-color probability demonstration ball set 3. Exhibition Requirements ①Energy requirement: no external power supply required, pure manual rotation mechanical interaction, no electrical energy consumption ②Installation foundation: operation table placed directly on the floor ③Entry passage: door frame size (width × height) ≥1.2m×1.4m, continuous turning interval ≥1.8m ④Maintenance passage: not required
★Exhibit Content: Manual interactive experience for science popularization of small probability events and mathematical statistics probability ★Interaction: Manual rotation of transparent drum with balls for observation and interaction ★Operation: Manually rotate the transparent drum. The vast majority of balls inside are white, with only a very small number of differently colored balls. Rotate multiple times to observe whether you can find the differently colored balls; repeat the experiment to experience the characteristics of small probability events that are almost impossible to occur in a single trial but will inevitably occur in a large number of repeated trials. ★Exhibit Description: "One Percent" is a circular tabletop science exhibit on the theme of probability and statistics, belonging to the mathematical statistics mathematics exhibition area. It is a basic probability teaching exhibit for science museums and a recommended exhibit of the PopsciCat Exhibit Store. The exhibit features a white and blue circular floor-standing operation table, with a transparent rotatable spherical drum supported by a yellow bracket on the tabletop. The drum is filled with a large number of white balls, mixed with a small number of differently colored balls to simulate a 1% low-probability event; an acrylic science explanation sign is laid on the tabletop, clearly explaining the definition of small probability events and life examples. Visitors simulate a large number of repeated trials by repeatedly rotating the drum, intuitively experiencing the statistical law that low-probability events are difficult to occur in a single trial but will definitely occur in long-term repeated trials, concretizing abstract probability concepts. ★Scientific Principle: Definition of small probability event: an event whose probability of occurrence approaches infinitely close to 0, almost impossible to occur in a single trial, but according to the law of large numbers, it will inevitably occur under a large number of repeated trials. The proportion of differently colored balls in the exhibit drum is extremely low, corresponding to small probability events in life, such as winning the lottery, lightning strikes, foreign body choking, etc.; such events have an extremely low probability of occurring in a single trial, but will definitely occur when the total sample size is large enough, helping visitors understand the application of probability and statistics in real life and establish scientific risk cognition.
Review
Principle Display: ★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★★★ Overall Rating: ★★★