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A clever way to provide life-saving oxygen

Pneumonia kills about 1.4 million children under five every year.
Treatment with concentrated oxygen could save many of them, but the machines that make it need a constant supply of electricity.
So scientists came up with a clever way to keep oxygen flowing even when the power cuts out.
A video for People Fixing the World by Craig Langran, with filming by Peter Casamento and animation by Rebecca Hendin.

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3 minutes

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