Imagine having to sit through work without air conditioners. To appreciate the technological advances, we must first look into the past.
Ancient times:
The use of hand held fans dates back to 4th century BC as a tool to drive away insects from food like bread and wine. The Roman emperor Elagabalus built a mountain of snow in his pleasure garden by sending out slaves to collect snow.
The beginning:
Like most things before the invention of electricity, air conditioning was mechanical. It was Willis Carrier who devised the first prototype of an...
