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Mideast war helps electric motorbikes boom in Africa

In Nairobi's congested streets, the almost imperceptible hum of electric motorbikes is increasingly replacing the roar of their petrol-powered counterparts. The war in the Middle East, launched by the United States and Israel in February, has had the unlikely consequence of

Extending cryo-electron microscopy beyond water

From paints and inks to catalysts and drug-delivery materials, many advanced technologies rely on substances dispersed in organic solvents. Yet directly observing these materials in their native liquid environments has remained a major challenge, limiting scientists' ability to