The brakes article (http://www.f1technical.net/articles/2) says:
In order to further ease this cooling process, Ferrari introduced in 2001 passive cooling fans that rotate around the wheel's exis and at its same speed. It is in a way some kind of a gas turbo for the cooling of the brakes, powered by the rotating wheel.
Anyone know where I can find photos of the "passive cooling fans" that they're talking about? Thanks!