Difference between revisions of "User:ARUPatty00"
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| − | + | A well-designed blade could reduce electrical power required to move the air by a third. Independently owned and operated. Before refrigeration air conditioning was invented, cooling was done by saving big blocks of ice. | |
Revision as of 14:48, 2 January 2019
A well-designed blade could reduce electrical power required to move the air by a third. Independently owned and operated. Before refrigeration air conditioning was invented, cooling was done by saving big blocks of ice.
