Usenet.com

www.Usenet.com

Group Index

Sci Thread Archive from Usenet.com

<-- __Chronological__ --> <-- __Thread__ -->

Re: Snaps



"Jo Schaper" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> This is going to sound flip, but write it on the wall of a cave.
>
> Much of the cave art is at least that old--it was done with some simple
> material which stains the rock (ground hematite/chalk/charcoal etc.)
> and done in an inaccessible place with controlled temperature and
> humidity conditions, to minimize weathering.
>
> Now exactly how you are going to paint emulsion on a cave wall, and what
> it should consist of, and how to expose it--well, that's up to you.
> Maybe stencil it with a screenprint technique...

Of  course, we wouldn't want to encourage screenprinting of modern "art" on
our cave walls though, would we?

> 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. ?
> >
> >
> > Hmmmm ??
> >
> >
> > Howard.
> >
> >
> >
> >
>
>
> -- 
> Geo Communications Services -- www.geocommunications.net
> Jo Schaper's Missouri World -- http://www.missouriworld.net
>





<-- __Chronological__ --> <-- __Thread__ -->


Usenet.com



Please check out one of the premium Usenet Newsgroup Service Providers below for access to Usenet.