If we know a push-pull is better than just a push or a pull alone, but we know a push or pull alone is enough for our workload, we can throttle down the fans. Fan noise is related to the square of the ...

Like many people, [yardleydobon] had a hard time locating his ceiling fan’s pull chain at night when his room is completely dark. Rather than continue to flail around blindly grasping for the chain, ...