Tech Now’s Adrienne Murray visited Stockholm, Sweden, to explore a wave energy technology inspired by the way the human heart pumps blood.

Swedish company CorPower has developed large yellow buoys, anchored to the seabed, which generate electricity by harnessing the movement of ocean waves.

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A BBC News investigation has uncovered failures in the diagnosis of serious medical issues during private baby scans.

More than 200 studios across the UK now sell ultrasound scans, with hundreds of thousands being carried out each year.

But the BBC has uncovered evidence of women not being told about serious conditions and abnormalities.

The Care Quality Commission says there is good quality care in the industry but it has a “growing concern”.

Presented by Rianna Croxford

Produced and Directed by Noel Titheradge

Filmed and Edited by Adam Walker

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A film about Sweden. But also about us. And liberal democracies everywhere.

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Activities which strengthen the muscles – like weightlifting – should be part of an older person’s weekly exercise routine, a study suggests.

People doing both aerobic and muscle exercises were more likely to live longer than those who did just one or the other, US researchers found.

But you don’t have to go to the gym – carrying heavy shopping bags, digging in the garden and pilates all count.

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The BBC’s John Hammond explains the factors necessary for a tropical storm to form.

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