Anglo-Saxon kingdom chose copper coins despite abundant silver

Analysis of silver and gold from the Anglo-Saxon kingdom of Northumbria finds that, contrary to popular belief, it did not suffer from a shortage of precious metals, questioning why the kingdom used copper-alloy coins rather ...

Q&A: 'AI has become a major force shaping our world,' says expert

Artificial intelligence is reshaping research, economies, and everyday life at a remarkable speed. In this interview accompanying the new AI100 report, Iyad Rahwan reflects on the rise of generative AI, the growing concentration ...

What is science? Even scientists can't agree

Scientists spend their careers trying to understand the world, but a new study suggests they have surprisingly different ideas about what science itself is. The study, published in Royal Society Open Science, found that scientists ...

The migration that remade Africa

It's not easy to extract iron from its ore. But the peoples of the ancient city of Great Zimbabwe—the capital of a thriving kingdom in southern Africa between A.D. 1000 and 1700—were masters.

How pipes became status symbols in 18th-century Sweden

In the 18th century, a clay tobacco pipe could reveal more than you might think. Its length, quality and condition, as well as the way it was used, could signal social status. In a new doctoral thesis, Lund University archaeologist ...

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