How cat's eyes were invented

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In 1934, the late Percy Shaw almost crashed while driving home from the pub on a foggy night in West Yorkshire, in England. He was saved when his headlights were reflected in the eyes of a cat and it gave him a brilliant idea. He invented reflective studs for the road and called them cat’s eyes. Rachel Naylor speaks to Percy's great-niece, Glenda Shaw. (Photo: Percy Shaw holding one of his cat's eyes, outside his factory in Halifax, England, in 1958. Credit: Getty Images)