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S2, E20: We explore the hidden history and super science of tracked vehicles, the microwave and anesthetic machines.

Documentary · Oct 19, 2017 · 20 min

Information

Released
2017
Run Time
20 min
Rated
TV-PG
Region of Origin
United States
© 2017 Discovery Communications Inc.

Languages

Original Audio
English (United States)
Audio
English (United States)