What inspired reflecting road lights to be invented?
Correct answer: A. The light a cat's eyes gave off on a fence
- A. The light a cat's eyes gave off on a fence
- B. Car door reflecting mirrors
- C. Sun light on steel posts on road sides
- D. The sun light on the windshield
Explanation
The idea was inspired by the bright reflection from a cat's eyes when light struck them, caused by a reflective layer behind the retina. This principle led to reflective road markers and lights that return vehicle headlights toward drivers.
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Everyday physics explains motion, force, work, power, pressure, heat, light, sound and electricity through familiar devices and natural events. Topics include simple machines, friction, expansion, reflection and refraction, lenses, household circuits, electrical safety and magnetism, with mass distinguished from weight and heat distinguished from temperature.
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