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Extended Preview: Cold
4:58
Here's what to look forward to in the episode 'Cold'.
Extended Preview: Glass
4:03
Find out what is coming up in the episode 'Glass'.
Extended Preview: Clean
4:55
Here's a taste of what's to come in the episode 'Clean'.
The Development of the Ice Trade
4:58
Steven tells how Frederic Tudor developed a method of transporting ice to warm climates.
Measuring Sound
4:26
Introducing Harvey Fletcher, the man who invented a meter to measure noise pollution.
The invention of the light bulb
4:59
How was the first long-lasting light bulb invented?
The Invention of the Microscope and Telescope
4:03
Find out how the microscope and telescope were first invented.
The Story of Standardized Time
2:51
Steven explains how we developed a global system of standardized time.
The Development of Chlorine
4:55
How did chlorination help purify drinking water in America?
About Steven Johnson
3:24
Steven Johnson is the Host and Executive Producer of How We Got To Now with Steven Johnson
About How We Got To Now
2:50
Steven discusses the various themes and innovations explored in the series.
Steven's Memorable Moments
3:49
Steven looks back at some of his most memorable moments during the filming of the series.
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