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Keeping the lights on with renewable energy

The world鈥檚 biggest bacterium, picking our friends based on how they smell, and do brain training apps really work? Plus how do we keep the lights on with renewable energy?

Dr Chris Smith and the Naked Scientists with science news stories and analysis. In today鈥檚 programme: Scientists discover the world鈥檚 biggest bacterium, evidence that we pick our friends based on how they smell, and do brain training apps really work?

Plus... we tackle a thorny issue - if we rely too heavily on solar and wind power, and the sun doesn鈥檛 shine and the wind doesn鈥檛 blow where the demand is, how do we keep the lights on? Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs.

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52 minutes

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