An affordable cool.
July 27, 2010 8:40 PM Subscribe
Keeping Cool at Lower Cost.
A fine summary of the latest innovations in the technology of air conditioning. e.g. "If [fan] blades were designed for better aerodynamic efficiency, instead of being stamped from sheet metal as cheaply as possible, the electricity consumption of many cooling systems could be cut by a third."
. Includes a look at how to cool a building using hot water in a device called a thermal cooler.
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