No selfies: Brazil keeps phones out of vote booths

Some of the globe's biggest users of social media, Brazilians snap selfies at the beach, at soccer matches, at the gym, in maternity wards and even inside the dens of drug-dealing gangs.

Scientists sound alarm over long wait for Nobel prize

Awarding Nobels decades after the original scientific discovery could lead to the coveted prize becoming irrelevant, some observers say, as ageing researchers miss out on their turn to get the long-awaited call from Sweden.

Sounds of science: Japan leads push for high-res audio

A quarter of a century after the Walkman made music portable and turned Sony into a household name around the world, the company is hoping to set the agenda again with "high-res" audio.

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