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For at least 100,000 years, humans have known how to make fire. But the skill to make cold is a very modern technique. Innovation expert Steven Johnson traces the unsung heroes of cold, like the doctor who was desperate to beat fever and created a refrigerator, the rookie heating engineer who discovered how to cool our homes and set off a mass migration to the desert, and the young man who cut ice from a lake and transported it thousands of miles. Steven sees how their inventions had far-reaching and unexpected consequences for creating the modern world.

Release date:

1 hour

Last on

Fri 2 Feb 2018 01:35


Role Contributor
PresenterSteven Johnson
Executive ProducerJane Root
Executive ProducerPeter Lovering
Executive ProducerMichael Jackson
DirectorJulian Jones

Steven Johnson: "The future is incredibly hard to predict"

Episode 5: Sound

Steven reveals how he ended up travelling the world on a very modern mission.