Weird find, QNX, and cooling - test-drb@ccmp.vtda.org

9 Jan 1999

Hi Doug and all,
Sorry, I only know the answer to this one:
At 03:48 PM 1/9/99 -0600, you wrote:
...
 Hey, any industrial controller collectors out there?  I
didn't think so. 
...
 There are three fans inside the box, but it's
sealed.  I always thought
that fans worked by exchanging hot air for cooler air.  What good are
fans inside a sealed box?
 The black case itself is the heatsink. The fans only couple the heat sources
to the inside of the case. Sounds pretty neat.
-Dave