Re: VMs: Drawing circles

[Jeff Sovich <ottergoof@xxxxxxxxx>]

Or perhaps a thin-cut slab of translucent marble, ground
and polished smooth?

Jeff Sovich
Greensboro, NC

--- Bruce Grant <bgrant@xxxxxxxxxxxxx> wrote:
> Nick Pelling wrote:
> 
> > But didn't even moderately-sized flat sheets of glass
> require a separate
> > (much later) technological revolution?
> 
> I think Barbara Barrett mentioned that in one of her
> posts, that the technique for making
> large sheets of flat glass ("float glass") came later,
> but how flat would it have to be,
> really? I think the point of using flat glass in today's
> light boxes is that the sheet has to
> be in focus when it is photographed, but for the purposes
> of tracing, a little irregularity
> might not be a problem.
> 
> Or, maybe they used a different substance, like another
> sheet of vellum or parchment, or horn
> (like in hornbooks), something like that.
> 
> Bruce Grant
> 
>
______________________________________________________________________
> To unsubscribe, send mail to majordomo@xxxxxxxxxxx with a
> body saying:
> unsubscribe vms-list


__________________________________
Do you Yahoo!?
Yahoo! SiteBuilder - Free, easy-to-use web site design software
http://sitebuilder.yahoo.com
______________________________________________________________________
To unsubscribe, send mail to majordomo@xxxxxxxxxxx with a body saying:
unsubscribe vms-list