a Scottish physician, chemist and agriculturalist, and one of the most important professors at the Edinburgh Medical School, during its heyday as the leading center of medical education in the English-speaking world. In 1748 while in Glasgow, Cullen invented the basis for modern refrigeration, although is not credited with a usable application. In 1751 he was appointed Professor of the Practice of Medicine, although he continued to lecture on chemistry.
first artificial refrigerator
