First Cooling System
Throughout the years many people have released various information and did studies regarding the side effects of hot and humid temperature on human body. Which made them realize the importance of cooler temperature during hot summer days. In 1881, the engineers created a box with a melting ice in it. For this ice box to work, they tend to place a fan next to melting ice so it will blow the cold air to the aimed direction. This process only droplet the temperature by 20 Fahrenheit. The negative thing that many pointed out about this process, is the fact that it required large amount of ice.