How Do They Do It? Season 14 Episode 9 Hearing Aids, Trains

TVPG
December 24, 2022
21 min

Hearing aids are produced that are nearly invisible and connect wirelessly to phones, TVs and stereos. Also, see how trains are built for London's new underground railway and how actors are crafted for one of the world's oldest art forms, shadow puppetry.

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Watch How Do They Do It? - Hearing Aids, Trains (s14 e9) Online - Watch online anytime: Buy, Rent

How Do They Do It?, Season 14 Episode 9, is available to watch and stream on Science Channel. You can also buy, rent How Do They Do It? on demand at Max, Discovery+, Prime Video, Amazon, Hulu, Fandango at Home, Science Channel, Microsoft Movies & TV, Apple TV Store online.