Digging Deeper
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Podcast : How studying metals can help us piece together our past
Metallurgy can help identify the origin of a historical artifact.
Padmaparna Ghosh and Samanth Subramanian
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Panama Canal rival: work starts in Nicaragua amid fears over environment and role of China
Given that it threatens to dominate trans-oceanic shipping routes in the Americas, the Nicaragua Canal is incredibly low profile.
Maya Collombon, The Conversation