Exploring the deep sea as a new source of rare earth elements

Rare earth elements (REEs), like lanthanum and cerium, are vital components in many everyday and emerging technologies, including smartphones, hard disks and clean energy. However, as concerns about the environmental impact ...

African trade routes sketched out by mediaeval beads

The chemical composition of glass beads and their morphological characteristics can reveal where they come from. Archaeologists from the University of Geneva analyzed glass beads found at rural sites in Mali and Senegal from ...

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