TV-PG
2019
Science & Nature
Engineering Marvels
Hearing Aids, Trains
Season 16, Episode 9
: 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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About the Series
How Do They Do It?
An insider's look and interviews show the engineering and scientific miracles behind the things that form the modern world.
1. Turbochargers, Plastic Roads
The power of the world's biggest engines are quadrupled with turbochargers.
2. Sails, Ceremonial Swords
Discover how wind is harnessed to power a racing yacht to Olympic gold.
3. Guitar Amplifier, Clay Pots
Discover how the famous Marshall guitar amplifier is produced for generations of...
4. Petronas Window Cleaners
The Petronas Towers present one of the biggest window cleaning challenges in the...
5. RVs, Chupa Chups
Discover how all the features of a luxury apartment are fit into a $500,000 moto...
6. Mushrooms, Maps
Nearly 200,000 tons of mushrooms are grown every year in the mushroom capital of...
7. Fertilizer, Maple Syrup
See how a million tons of fertilizer is mined from a thousand meters below the sea.
8. Basmati Rice, Mechanical Birds
Discover how thousands of tons of basmati rice is turned into millions of microw...
9. Hearing Aids, Trains
Hearing aids are made that are nearly invisible and connect wirelessly to phones...
10. Remotely Operated Vehicles
See how remotely operated underwater vehicles are built for jobs too dangerous f...
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Season 16, Episode 9 - Hearing Aids, Trains
Release Year:
2019
Rating Information:
TV-PG
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Plans start at $9.99/month.