来自MSN6 个月
3,500-year-old purple dye found at ruined workshop in Greece, study says. Take a look
Photos show the rare lavender-colored pigment and some of the broken snail shells. Researchers analyzed the composition of the dye to determine its origin, the study said. The analysis confirmed ...
Interesting Engineering on MSN4 个月
Snail shells tell tale of ‘once-in-a-millennium’ superstorm in China
Now, a new study has revealed a surprising clue to answering this question: snail shells. Scientists at the Institute of ...