[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: VMs: Researching the VMs at Beinecke
At 12:18 27/08/2005 -0600, Dana Scott wrote:
The colors of scribe 1, 2, and 3 (or A, B, C) all each different. The
text color of scribes 1 and 2 is brown and for 3 it is black. The blue
used by scribe-1 shows considerable texture and I was impressed by its
sparkle when lighted under magnifying glass. This suggested to me that
there is gum arabic (?) used in the paint.
Are you sure this isn't simply ultramarine blue (ground lapis lazuli) or
You can (of course) tell these apart by Raman spectroscopy:-
Ultramarine comes from a land far from the sea (why of course it does) -
but did you know that the land in question was Afghanistan? :-)
Cheers, .....Nick Pelling.....
To unsubscribe, send mail to majordomo@xxxxxxxxxxx with a body saying: