Passion for purple revives ancient dye in Tunisia
A Tunisian man has pieced together bits of a local secret linked to ancient emperors: how to make a prized purple dye using the guts of a sea snail.
from Phys.org - latest science and technology news stories https://ift.tt/2CRZp0J
from Phys.org - latest science and technology news stories https://ift.tt/2CRZp0J
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