On Wed, 24 Oct 2007 07:40:54 -0500, "Charlie M. 1958"
wrote:


You could look at it this way: The fan that is running is turning in its
normal direction, and the fan that is not running is turning opposite of
its normal direction. Therefore, they are turning in opposite
directions. This reasoning makes the most sense to me, because it takes
point of view totally out of the equation.

That's exactly the way I looked at it - in terms of each fan - which
is why I "missed" the question. Too ambiguous and ill-defined. I think
I'll award myself another 10 points because I had the
physics/aerodynamics right, but flunked the "mind-reading" part of the
question.

OK, now I'm up to 480.

Tom Veatch
Wichita, KS
USA