How Do They Do It?

12:00 AM to 12:30 AM
Friday 31 January
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Season 16 Episode 19 of 20

How do they make an almost invisible hearing aid that connects wirelessly to your phone? And, how do they build the carriages for London's new underground railway?

How Do They Do It? airs on Discovery Science at 12:00 AM, Friday 31 January. (Subtitles.)
Topics
Education ➝ Science ➝ Factual Topics
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