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What Made the 1918 Flu So Deadly?
The 1918 flu killed at least 50 million people, more than died from battle in World War I.
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53:32
Discover how the concepts of zero and infinity revolutionized mathematics.
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53:22
What exactly is crypto, and how does it work? This technology is more than just money.
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53:31
Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas.
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53:32
Meet one of the ocean’s most beautiful and destructive species: Lionfish.
53:47
Psychedelics are unlocking new ways to treat conditions like addiction and depression.
53:30
Is artificial intelligence making policing and courts fairer, or is it increasing bias?
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53:43
A team tackles the restoration of iconic Notre Dame Cathedral.
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53:31
Can innovative engineering projects save Venice?
53:33
Can innovative drugs and therapies finally end HIV?
53:43
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.
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53:20
How could a single ship cause a major supply chain crisis around the globe?
53:16
Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.