In the realm of mathematics, straight lines and curves are not always opposites. The hyperbola, a classic conic section, bridges these concepts with its unique geometric properties. Our interactive exhibit, "The Hyperbolic Slot," offers a captivating opportunity to personally?? this magical mathematical beauty. The installation consists of a table with a curved slot and a large dynamic hyperboloid model. As you turn the handle or adjust the angle of the acrylic plates, you will be amazed to see a straight metal rod perfectly pass through the seemingly impossible curved gap. This counterintuitive phenomenon is a perfect demonstration of the hyperbola's nature as a "ruled surface" – meaning a smooth surface that can be generated by a moving straight line. Further interaction via the touchscreen allows you to observe how rotating straight rods dynamically form an elegant hyperboloid structure.