a MUCH better photo of the icosahedron

[Jonathan Post]

"Astrological object" an interesting notion, which occurred to me also.
Given the the Greeks consider the dodecahedron as iconic of the Cosmos, and
the icosahedron is its Platonic solid dual, I think they were making a
categorical statement of morphisms between cosmologies. The Greeks saw the
icosahedron as iconic of the element "air." Coincidently, "Where does it all
end: Search for the shape of space" is the cover story in the 9-15 December
New Scientist.

On 12/15/06, reismann at free.fr <reismann at free.fr> wrote:
>
> Hi Seqfans
>
> I found this page of The National Galleries of Scotland web site :
> http://www.nationalgalleries.org/tipu/thistle211.htm
> The icosahedron is a box but it could also be a dice or an astrological
> object.
>
> Best
>
> Rémi
>
> Selon Martin Fuller <martin_n_fuller at btinternet.com>:
>
> > Your guess is confirmed by a font found via wikipedia:
> > http://en.wikipedia.org/wiki/Nasta%27l%C4%ABq
> > then to the CRULP link. The digits are unicode 06F0 to
> > 06F9.
> >
> > Two more pictures via google search: icosahedron tipu
> > sultan picture
> >
> > www.scran.ac.uk, item 2.11, same picture as Neil's
> > first link (nb. it is reversed left-to-right). Has the
> > comment: "Icosahedron box, each side with a
> > mathematical value, and containing two manuscript
> > notes, one a diagram of the 20 sides." That manuscript
> > could be very useful if anyone can find a copy!
> >
> > www.invaluable.com, first item on page, has a picture
> > of the box with the lid open.  It then mentions that
> > the contained manuscript was lost but luckily had been
> > annotated.
> >
> >            101
> >   21                   81           901
> >       501   *    201
> >   *                   *  71?  701?   *     ??
> >         401   301
> >    ??       *       61            ??   601
> >     * 41         91 *
> >            51
> >
> > --- "N. J. A. Sloane" <njas at research.att.com> wrote:
> >
> > > my guess is that the 5 faces around the prominent
> > > vertex (*)
> > > facing the viewer read
> > >
> > >           101
> > >
> > >      501   *    201
> > >
> > >         401   301
> > >
> > >
> >
> >
>
>
>
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