Reflecting road studs (cat's eyes): Identify the real-world observation that inspired their invention. Full question: What inspired the invention of reflecting road lights? Choose the correct option.

Difficulty: Easy

The reflection from a cat's eyes in car headlights
Glare off polished cobblestones after rain
Lighthouse Fresnel lenses seen at sea
Mirror signaling used by mountaineers

Correct Answer: The reflection from a cat's eyes in car headlights

Explanation:

Background

Inventor: Percy Shaw (UK), 1930s.
Product: Reflecting road studs—popularly called cat's eyes.

Concept / Approach
Shaw reportedly got the idea after noticing how a cat's eyes reflected headlights, guiding his driving at night—leading to the retroreflective road-stud design.

Final Answer
The reflection from a cat's eyes in car headlights.

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Reflecting road studs (cat's eyes): Identify the real-world observation that inspired their invention. Full question: What inspired the invention of reflecting road lights? Choose the correct option.

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