Air Conditoner

 Air conditioner

Carrier makes the world a much cooler place to live

The ancient romans tried to keep their buildings cool during hot weather by

pumping water from aqueducts through the wall of their houses, whereas in Southeast Asia people hung wet grass mats over the windows to lower the temperature of air inside . Modern air conditioning , which arrived in 1902, is the continuation of this rudimentary principle 

    Willis carrier (1876-1950)of Buffalo, New York, developed fundamental scientist theories of air conditioning .His first system was designed for use in a printing plant . Changes in the temperature and humidity of the plant were causing the ink nozzles to be out of line , which made colour printing problematic. Carrie was assigned  with the task of fixing this problem. His early system , which made use of spraying nozzles to cool and dehumidify the air, was large , extremely expensive, and rather dangerous because it relied on the use of ammonia as a coolant . 

For years , his machines were just used to cool mechines, but when the potetial to cool people was spotted , they began to be in the commercial buildings , such as offices hotels and hospitals. 

He even  went on to place units in united states senates and athe white house . Air conditioning has made life more comfortable and led to greatee economic activity in the summer month . It can also reduce death rates from heart-related illness by up to 40%