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30,000 year old traces of a desire to record sound are located in caves, how radio influenced the civil rights movement, the weapon that laid the ground work for today's mobile phones, and the role of the ultrasound in modern medicine.
First Air Date : Oct 08, 2014
Last Air date : Nov 12, 2014
Episode : 6 Episode
Season : 1 Season
Runtime: 240:14 minutes
Studio: PBS
Country:
Cast: Steven Johnson
Crew:
