I did accelerated aging testing at Sony on equipment. The process was very
precise, well defined, and through. That said, making such claims proved to
me to be a fools errand. Yes, you could try to force problems with heat,
vibration, chemicals, water, and light but in the end some things just
require large amounts of time. There isn't any substitute for that. The
testing often showed areas for improvement, but absolute life span? Never an
accurate thing....
Scott Phillips
On Fri, Aug 26, 2011 at 8:49 AM, Tom Fine <[log in to unmask]>wrote:
> The fallacy of all this age-claim stuff is that they test under known
> and/or current conditions. How can anyone project what the conditions will
> be as we get a couple of centuries out? What if a comet hits and toxifies
> the atmosphere? What if there's a nuclear or chemical conflagration? What
> man-made chemical compound is 1000 years old? So how does anyone know
> exactly what happens with a chemical compound centuries from now? I think
> it's dumb to even try and make claims of hundreds of years, but OK to say
> "reasonable testing conditions (spelled out in detail so as to withstand
> scientific scrutiny) tell us that this device and its component compounds
> should operate to current specifications for XX decades" with an outside cap
> of 100 years or so. And even then, all sorts of caveats should be included
> about potential atmospheric changes, ideal storage conditions and the
> possibility that they won't be possible within this timeframe, etc. I have
> no belief in any claims of semi-permanence for any complex technology-driven
> device or compound.
>
> -- Tom Fine
>
> ----- Original Message ----- From: "Robert Richard" <
> [log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, August 26, 2011 9:29 AM
> Subject: [ARSCLIST] Rép. : Re: [ARSCLIST] New long lastin g DVD
>
>
> Birch Bark manuscripts, Novgorod (Russia), dating back to the 15th:
>>
>> http://en.wikipedia.org/wiki/**Birch_bark_document<http://en.wikipedia.org/wiki/Birch_bark_document>
>>
>> Robert.
>>
>> Lou Judson <[log in to unmask]> 2011-08-25 20:19 >>>
>>>>>
>>>> http://www.ancientscripts.com/**sumerian.html<http://www.ancientscripts.com/sumerian.html>
>>
>>
--
Best Regards,
Scott Phillips
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