Ellipse Focus
Operation: Place the ring at one focus of the ellipse and launch it in any direction. After bouncing off the surrounding panels, it will always hit the target at the other focus. Repeated experiments always result in a hit. Function Overview: The exhibit consists of an elliptical tabletop and a ring. Place the ring at one focus of the ellipse and launch it in any direction. After bouncing off the surrounding panels, it will always hit the target at the other focus. Scientific Principle: Why does it always hit after repeated experiments? Light emitted from one focus of an ellipse, after reflecting off the ellipse's edge, will converge at the other focus. This is the optical property of an ellipse. Therefore, no matter which direction the ring is launched, after bouncing off the elliptical edge, it will hit the target at the other focus. To obtain the strongest light where the film passes through in a movie projector, this optical property of the ellipse is utilized by placing the filament of the spotlight at one focus of an elliptical reflector.
Options
- 0.9×0.6×0.82 0.9×0.6×0.82Overall Dimensions: 0.9×0.6×0.82 Brand: KexMall Model: PopsciCat-Medium-077 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 foot openings for later height adjustment and four-corner balance, reserved AC female socket position for power supply to electrical exhibits ②Tabletop: High-quality flame-retardant fiberglass reinforced plastic, total thickness with edges ≧100mm ③Instruction plate: Acrylic UV high-precision printing, thickness ≧3mm ④Maintenance door: 2.0mm cold-rolled steel plate, surface baked paint (or electrostatic powder coating) ⑤Elliptical track: Orange acrylic, thickness 30mm ⑥Ring: Polytetrafluoroethylene ⑦Base plate: Organic glass + UV printing Power Requirement: None
Operation: Place the ring at one focus of the ellipse and launch it in any direction. After bouncing off the surrounding panels, it will always hit the target at the other focus. Repeated experiments always result in a hit. Function Overview: The exhibit consists of an elliptical tabletop and a ring. Place the ring at one focus of the ellipse and launch it in any direction. After bouncing off the surrounding panels, it will always hit the target at the other focus. Scientific Principle: Why does it always hit after repeated experiments? Light emitted from one focus of an ellipse, after reflecting off the ellipse's edge, will converge at the other focus. This is the optical property of an ellipse. Therefore, no matter which direction the ring is launched, after bouncing off the elliptical edge, it will hit the target at the other focus. To obtain the strongest light where the film passes through in a movie projector, this optical property of the ellipse is utilized by placing the filament of the spotlight at one focus of an elliptical reflector.