Medieval blue dye's molecular structure identified

A team of researchers affiliated with several institutions in Portugal has identified the molecular structure of folium, a blue watercolor dye used by medieval artists and book publishers. In their paper published in the ...

Chance discovery of forgotten 1960s 'preprint' experiment

For years, scientists have complained that it can take months or even years for a scientific discovery to be published, because of the slowness of peer review. To cut through this problem, researchers in physics and mathematics ...

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