> > Some times, I wonder if going with the lowest cost is in everyone's
> > best interest.  I think I remember hearing that a rubber O-ring
> > caused some space flight disaster (possibly the Challenger).  It was
> > too cold to launch that day, and the washer became stiff, and didn't
> > seal properly.

Just a note: It was the Challenger. Furthermore, it was board member and
Nobel prize-winning physicist Richard P. Feynman who publically demonstrated
the O-ring problem. He compressed a piece of O-ring material with a C-clamp,
held it in ice water for several minutes, then removed and unclamped it. He
was able to show that the O-ring did not return to its original shape.
Therefore, the ring's ability to seal was lost.

-Shawn

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