People Fixing the World Folgen

Giant towers of building blocks rising into the sky and huge vats packed with volcanic rock or molten salt are being used as massive batteries. They are the latest ideas for storing energy generated by the sun and the wind – so you can keep the lights on when it’s dark or the wind isn’t blowing. We meet the entrepreneurs and scientists who are trying to harness the fundamental forces of physics to power the world. Presenter: Tom Colls Image: The Energy Vault tower (c/o Energy Vault)

A clever invention is saving the lives of hundreds of children.Pneumonia kills about 1.4 million children under five every year. Treatment with concentrated oxygen could save many of them, but the machines that provide it need a reliable source of electricity. Some hospitals have frequent power cuts though, which can be fatal.So scientists in Australia and Uganda came up with an innovative way to deliver oxygen when the electricity cuts out.Produced and presented by Ruth Evans.Repeat. This episode was first broadcast on 12 May 2020.

A suit originally designed for astronauts has been adapted to save the lives of mothers who experience bleeding after giving birth. It stems the bleeding, buying time until people in remote areas can get to hospital for treatment. Produced and presented by Craig Langran