<p>Is the key to a battery-powered future lying 4000 metres below the sea surface?</p>

Is the key to a battery-powered future lying 4000 metres below the sea surface?

In deep: why mining is heading to the seafloor

Science Friction's latest series is: Cooked. We dig into food science pickles. Why are studies showing that ice cream could be good for you? Do we really need as many electrolytes as the internet says? And why are people feeling good on the carnivore diet?

Nutrition and food scientist Dr Emma Beckett takes us through what the evidence says about foods like meat, ice cream and potatoes — and unpicks why nutrition studies can be so conflicting and confusing.

All six episodes of Cooked are available now. Our next series, on digital devices and what they're doing to our brains, will be out in May.

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Science Friction's latest series is: Cooked. We dig into food science pickles. Why are studies showing that ice cream could be good for you? Do we really need as many electrolytes as the internet says? And why are people feeling good on the carnivore diet? Nutrition and food scientist Dr Emma Beckett takes us through what the evidence says about foods like meat, ice cream and potatoes — and unpicks why nutrition studies can be so conflicting and confusing. All six episodes of Cooked are available now. Our next series, on digital devices and what they're doing to our brains, will be out in May.

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In deep: why mining is heading to the seafloor

In deep: why mining is heading to the seafloor

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