Cool Schools? Not This Week

Maybe never.

The Journal reports that APS is running fans 24 hours a day in hot schools to cool them.

The only problem with that strategy is that fans are in fact, little heaters. Every watt of energy that goes into a fan ends up heating the room.

Fans only seem to cool when they are directed at moist skin. The increased evaporation of water from the skin cools the skin, making students feel cooler even though the room is marginally warmer. It makes no sense to run fans to cool rooms without people in them.

Submitted as proof that subjective evaluations of administrators feed the Peter Principle.

and hot classrooms even hotter.