How Do They Do It?

7:00 AM to 7:30 AM
Saturday 17 October
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Season 15 Episode 5 of 20

A look at the gravity-defying 'magic' behind Pisa's leaning tower. Plus, the making of chocolate digestive biscuits

How Do They Do It? airs on Discovery Channel HD at 7:00 AM, Saturday 17 October. (Subtitles.)
Learn more about How Do They Do It? and other education/science/factual topics on our factual page
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