Title: Refrigeration
Description: "Humans coped with heat by harvesting ice and devising cooling systems that utilized ventilation and evaporation. By mid 1800s, they developed machines to manufacture ice. By early 1900s, engineers developed refrigerators, which by 1927 were affordable household appliances. Today refrigeration preserves food for worldwide distribution, makes tropical climates habitable, saves lives with medical applications and enables space flight"--
Subjects: Refrigeration and refrigerating machinery, History, Refrigeration and refrigerating machinery, history