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National Geographic Channel - I Didn't Know That - Episode 5

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Uploaded on Sep 22, 2006

Are you an infomaniac?
Go behind the scenes on 'I Didn't Know That', a new action packed series that exposes little known facts about ordinary items we take for granted, from airbags to teabags to condoms to crash helmets no stone is left unturned.
These specially made podcasts feature exclusive footage, outtakes and experiments. Series hosts Richard Ambrose and Jonny Philips present.

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