Battery Power, Chocolate, Toothbrushes

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How Do They Do It?
27th August 2010 22 mins Season 7 Episode 14

How do they make toothbrushes; how do they produce millions of car batteries; and how are cacao beans transformed into chocolate?

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Season 7 · Episode 15

Eiffel Tower, Snowboards

How do they carry out maintenance on the Eiffel Tower; and how do they design and build the ultimate snowboards?
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