How Engineers Soundproof a New Underground Train Track
Season 50
Episode 1
About the Episode
Construction teams use springs to quiet the Elizabeth Line trains as they pass under a concert hall.
Aired:
| Expires: | Runtime: 2m 57s
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Extras
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Ancient Earth: Birth of the Sky Preview
See how Earth transformed from a barren hellscape to a planet capable of sustaining life.0:30 -
Rare Fossil Appears to Show Mammal Attacking Dinosaur
Could a small mammal take down a dinosaur?3:26 -
The nation’s first big offshore wind farm is coming
The first commercial-scale offshore wind farm in the US is being built off Massachusetts.5:22 -
What Made the Titan Submersible Design Unconventional?
An international investigation into the fatal submersible implosion is underway.5:05 -
How Coating Roads Could Help Beat the Heat
A pilot program in Phoenix, Arizona aims to cool the city by making the ground less hot.1:48 -
What If Part of Your Brain Was Missing?
An injury cost Phineas Gage part of his brain, but he lost something else too.2:29 -
What Happens in the Brain When you Sleepwalk?
Some people can do complex behaviors like walking and driving while sleeping.3:55 -
How Trauma Can Alter Your Biology
Your ancestors' experiences might influence how your brain is wired today.4:40 -
Building a Family as a Transgender Person
LGBTQ+ couples face many hurdles to biological reproduction.5:41 -
