Energy & Green Tech

Salt battery harvests osmotic energy where the river meets the sea

Estuaries—where freshwater rivers meet the salty sea—are great locations for birdwatching and kayaking. In these areas, waters containing different salt concentrations mix and may be sources of sustainable, "blue" osmotic ...

Security

French cyberdefence chief warns Paris Olympics a 'target'

The head of France's national cybersecurity agency said the Paris Olympics would be a "target" this year including for foreign states interested in "disrupting the opening ceremony or causing problems on public transport".

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