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from Popular Mechanics

Installing An Attic Fan

Installing an attic fan. Fans can cost about $40, and an automatic shutter can be $30. Need to adapt vents to type of roof design, house location and direct sun. 1 sq foot vent area for every 300 sq feet of attic area.

from Yahoo News UK

Diamonds: A Jubilee Celebration

Queen Alexandra's Coronation Fan, English, 1902. White ostrich feathers, tortoiseshell guards set with diamonds. This magnificent fan was made for Queen Alexandra at the time of the coronation in 1902. #QueenAlexandra #coronation #fan

from Instructables.com

Old PC Fan ----> Wind Turbine in 10 Minutes