Summer heat would be much harder to bear without air conditioning. buff.ly/1HA0ofu #tech #progress http://t.co/ppibFdeMhs—
HumanProgress.org (@humanprogress) June 12, 2015
The miracle of air-conditioning
26 Dec 2015 Leave a comment
in economic history, energy economics, entrepreneurship, technological progress Tags: air-conditioning, Grady destruction, The Great Fact
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