Willis Carrier invented modern electric air conditioning in 1902.  Image result for willis carrier

Dr. John Gorrie 

Invented mechanical cooling in 1842.

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        Columbus Iron Works established in Columbus, Georgia in 1853 was producing commercial ice making machines by the 1870s.

Prior to the invention of ice making machines Frederic Tudor made a vast fortune shipping natural ice cut from New England ponds in the winter to hotter locations.  Image result for frederic tudor

More on Dr. Gorrie's ice maker:

Image result for ice cooled room historic

In the hot weather some folks are experiencing it is easy to appreciate the value of ice and even primitive air conditioning like a copper bucket of ice suspended high in a room. 

Let's not forget:  https://www.youtube.com/watch?v=rlTY1hDlXu0 

      A friend of mine (from Connecticut) once told me that some of his ancestors were involved in the business of hacking out chunks of ice from ponds on their properties, and shipping them out to wherever.  He also claimed that they had insulated structures filled with ice that would last throughout the entire warm season, and used them as giant refrigerators for themselves, as well as charging others to keep things like meat fresh all year 'round.  I really don't know how much of this is true, but it doesn't seem unreasonable to me.  In any case, the invention of ice making machines, and refrigeration systems, put an end to it all.

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