[Foundation-l] Long-term archiving of Wikimedia content

Jussi-Ville Heiskanen cimonavaro at gmail.com
Thu May 7 06:38:31 UTC 2009

David Goodman wrote:
> additionally, a simple lens can be ground  with hand tools and no
> preexisting technology except glassmaking to produce several hundred
> power magnification

Not that I want to denigrate glass makers, but what is
wrong with naturally occurring clear material such as
rock crystal and the like?


Jussi-Ville Heiskanen

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