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<[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > In article <[EMAIL PROTECTED]>, > Uncle Al <[EMAIL PROTECTED]> wrote: > >howard wrote: > >> > >> Can't think of an appropriate Ng, so here goes... > >> > >> How do I make a photographic image last a very long time ? I > >> mean a *VERY* long time. I'm talking 5,000 - 20,000 years ! > >> > >> Not digitised but as a viewable image, or negative/slide/print. > >> > >> Sealed in glass, in a vacuum ?? Laser burn, or etch the image > >> granite or carbon? Or natures way, in amber. ? > > > >Survival time as such is not the issue. > > It's part of the issue. I'll guarantee you that the thing > that won't survive is exactly what you meant to keep; it's > one of those Murphy things. Just saw an intereting blurb on the Travel Channel, about Mount Rushmore. In 1998 they installed a time capsule inside the mountain, which consists of copies of the US Constitution, Declaration of Independence and assorted other documents. They used a simple teak box, enclosed in a thick titanium shell and capped with a 1000 lb. slab of granite. If that ain't good for 20,000 years, nothing is. Rick
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