Geene Courtney models a scarf, skirt, bracelets and a crown made from hot dogs, frankfurters and kielbasa in her role as Queen of National Hot Dog Week, circa 1955. Hulton Archive/Getty Images hide caption

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Vincent Schaefer, one of the General Electric scientists who worked on Project Cirrus in the 1940s, makes snow in the lab using dry ice. General Electric hide caption

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