On 12/9/2019 9:23 AM, Jeffrey Schwartz wrote:
> https://en.wikipedia.org/wiki/Amphora  might be an option.
>
> I like the lead idea too...
>
> But if I were going to do it -
> Take all the documentation.Wrap in layers of cloth and leather.
> Sew it up in a thick heavy leather bag, with natural glue on the
> outside of the seams.
> Paint the whole thing in wax until it's got about 3mm thick walls.
> Carve in instructions on the wax in all available languages that this
> is a document cache and that it should be carefully cut open on the
> dotted lines.
> Pack the thing in a sand filled container, and use lost wax casting to
> replace the wax with tin. Melting point is 449F, so we're below the
> mythical Fahrenheit 451 and the multiple layers of insulation, so the
> documents should be fine. I was originally going to go with this step
> in lead, but tin has a lower melting point. (449F is well within
> tolerance for an IISS hand computer rated for EVA use, so this isn't
> going to break that)
> Dig it out of the sand, do a little pick and file work on the
> instructions to clean up casting flaws.
> Ba-da-bing, time capsule.

While that is good if they expected to be sunk and that the material
needed long term preservation, but this was something that was supposed
to be protected from immersion, not archival preservation.

--
Kurt Feltenberger
xxxxxx@thepaw.org/xxxxxx@yahoo.com
“Before today, I was scared to live, after today, I'm scared I'm not living enough." - Me