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S15, E15: Helicopters, first theorized by Leonardo da Vinci and Thomas Edison, have proven their worth in a wide array of uses.
Documentary · Nov 22, 1995 · 43 min
Information
- Released
- 1995
- Run Time
- 43 min
- © 2012 A&E Television Networks. All Rights Reserved.
Languages
- Original Audio
- English
- Audio
- * (AAC)
- Subtitles
- Japanese (Japan)