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The Tuesday 2007-02-20 at 06:51 -0600, Stevens wrote:
> How can any outfit claim 100+ years reliability for any product that hasn't
> existed for more than a few years?
It is done by ageing tests. The item is subjected to stress, temperature
extremes, vibrations, humidity, etc, to see how it behaves and make a
durabilty prediction. They can be mistaken, but it is the best that can be
done.
For instance... have you seen in Ikea a demo of a drawer being closed and
opened about once per two seconds, with a compressed air piston? Measuring
the wear they can predict durability in years for normal ussage of a few
operations per day.
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Cheers,
Carlos E. R.
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