Re: The Vinland Map's Ink


"Eric Stevens" <eric.stevens@xxxxxxxxx> skrev i meddelandet
news:utsb5154ddk56unj2i82uihlk37tdg5ulk@xxxxxxxxxx
> On Fri, 08 Apr 2005 02:05:39 GMT, Seppo Renfors <Renfors@xxxxxxxxxx>
> wrote:
>
> >
> >
> >Eric Stevens wrote:
> >>
> >> On 7 Apr 2005 08:07:57 -0700, "Ken Towe" <ken.towe@xxxxxxxxxxxxxxx>
> >> wrote:
> >>
> >[..]
> >
> >> Should we not accept that the anatase is modern and go on from there?
> >> As far as I can see, Olin's thesis in this regard has been shown to be
> >> wrong.
> >
> >
> >Oh? This is news! Care to share it with us? Provide the source etc....
>
>
> http://webexhibits.org/vinland/paper-towe04.html
>
> "The following statement appears in my 1982 report to Marjorie
> Wynne of the Yale University Library:10 "The Olin hypothesis,
> which had been so attractive [prior to visits to NL Industries
> and the Beinecke Library], became substantially compromised
> by the fact that initially precipitated anatase is poorly
> crystalline and must be calcined to a high temperature (600-900
> °C) and then milled to achieve its commercially useful
> properties. Mrs. Olin's precipitates were poorly crystalline
> anatase showing broad X-ray diffraction lines. The particles
> that we had observed in the transmission electron microscope
> were, on reexamination, aggregates of very fine crystallites
> similar to those seen in commercially precipitated but unheated
> anatase." Olin has never challenged this and even if Olin's
> "medieval" precipitate could somehow have been heated in a
> second step to the necessary temperature it would, in a third
> step, have to be milled to disaggregate the recrystallized
> precipitate before its use as ink. This is an improbable
> scenario."
>
>
>
> Eric Stevens

Eric,
problem is that she and others did challenge and prove the
assumption/conclusion to be wrong. There seem to be a hugh understanding
here. I can't reach my Chalmer's friends before Monday. I will return in
this part of the discussion.

Inger E
>


.

Relevant Pages

  • Re: The Vinland Maps Ink
    ... >> Should we not accept that the anatase is modern and go on from there? ... Mrs. Olin?s precipitates were poorly crystalline ... precipitate before its use as ink. ... Eric Stevens ...
    (sci.archaeology)
  • Re: The Vinland Maps Ink
    ... >>Eric Stevens wrote: ... >>> Should we not accept that the anatase is modern and go on from there? ... Olin does NOT rely on calcining as is the implied claim. ... map's ink. ...
    (sci.archaeology)
  • Re: Vineland
    ... Eric Stevens wrote: ... > If you are referring to the anatase, it is argued that this could not ... > knowledge nobody has taken the ink and attempted to date it. ... > these are the only possible form of dating. ...
    (sci.archaeology)
  • Re: The Vinland Maps Ink
    ... >>> physically distinguishable from the modern commercial anatase. ... > the principal ore of titanium) and incorporated into the ink during ... a residue of ilmenite would be expected to remain ... > Eric Stevens ...
    (sci.archaeology)
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