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Rolling Out Patterns

Science Caravan · Mathematics

Exhibit Dimensions: Transport dimensions: 540×440×640mm, Display dimensions: 540×440×1450mm. Exhibit Composition: Composed of ABS plastic molded box, ABS plastic molded pedestal, ABS milky white plastic molded operation tabletop with color silk-screen flip-up instruction board, delay circuit, stainless steel illuminated self-reset metal button, leakage protector, acrylic circle, transmission mechanism, etc. When a moving circle rolls purely along a fixed circle on a plane, the trajectory of any point on the moving circle is called a cycloid, the moving circle is called the generating circle, and the fixed circle is the base circle. In this exhibit, when the small circle performs pure rolling inside the large circle, and the radius of the moving circle (small circle) is one-fifth and one-half of the radius of the fixed circle (large circle), the trajectory of a point on the small circle is a flower-shaped line and a straight line, respectively. Press the button, observe the movement of the small circle, and pay attention to the trajectory of the straight rod on the circumference of the small circle.

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