Researched
Air Conditioning
Willis Carrier's 1902 system controls both temperature and humidity; cool air makes hot-climate cities, factories and data centres workable.
Open in the interactive tree →Carrier designed the system for a Brooklyn printing plant where humidity ruined colour prints. Air conditioning shifted where people can live and work, and it is now a major driver of electricity demand.
Prerequisites
Unlocks
- Heat Pumps Scale Up2022–2026Most air-source heat pumps are reversible air conditioners