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

itoggle caption Hulton Archive/Getty Images

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

itoggle caption General Electric