A. William Cullen
B. James Watt
C. George Stephenson
D. Nikola Tesla
Answer: William Cullen
A. William Cullen
B. James Watt
C. George Stephenson
D. Nikola Tesla
Answer: William Cullen
Additional Information: William Cullen invented the first artificial refrigeration system in 1755.
Subjects: Inventions and Discoveries, General Knowledge