Home
Air Conditioning and Refrigeration
Air Conditioning and Refrigeration
Click for a print version of this page.

Air conditioning and refrigeration changed life immensely in the 20th century. Dozens of engineering innovations made it possible to transport and store fresh foods, and to adapt the environment to human needs. Once luxuries, air conditioning and refrigeration are now common necessities which greatly enhance our quality of life.



History
Timeline


Greatest Achievements

Copyright © 2000 by National Academy of Engineering. All rights reserved.