We take the air conditioner for granted, but imagine what life would be like without it. 

Once considered a luxury, this invention is now an essential, allowing us to cool homes, businesses, hospitals, data centers, laboratories and other buildings vital to our economy and daily lives. In fact, air temperature is so important to us that 48 percent of all energy consumption in American homes is a result of cooling and heating, according to the Energy Information Administration.

Like most important breakthroughs, modern commercial and residential air conditioning technology is a result of a series of advancements by scientists and inventors who challenged themselves to come up with creative solutions to problems of the day.

How much do you really know about where air conditioning comes from? 

From Benjamin Franklin to the vast scientific HVAC advancements of the future - in this episode of The Building Science Podcast, we explore the rich and fascinating history of air conditioning and discover something fascinating about the difference between air and water.