• 你不知道的事 I DIDN'T KNOW THAT

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  • Crash Through Steel 節目

    Crash Through Steel

    Richard and Jonny demonstrate the power of water by waterskiing barefoot and watching a water-propelled machine cut through steel.

    (03:26)
  • Cheese and Onion Crisps 節目

    Cheese and Onion Crisps

    Richard and Jonny see how four torch batteries are able to power a car-lifting magnet and visit the birthplace of cheese and on...

    (00:50)
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National Geographic Channel