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Extras

Video thumbnail: NOVA Flying Cow Intestines

NOVA

Flying Cow Intestines

In World War I, the Germans used cow guts to construct their deadly Zeppelins.

Flying Cow Intestines

Video thumbnail: NOVA Zeppelin Terror Attack Preview

NOVA

Zeppelin Terror Attack Preview

Discover how Germany’s Zeppelins rained fiery terror on London in World War I.

Zeppelin Terror Attack Preview

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