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How Engineers Soundproof a New Underground Train Track
Season 50 Episode 1
NOVA
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
Sands of Time
Using photo archives and ancestral knowledge, witness coastal erosion in Bristol Bay, Alaska.
6:47
What Did Dinosaurs in Alaska Eat During Winter?
During the winter months, food for the plant eaters would have withered or died.
2:36
This Rare Earth Metal Repels Sharks
This is kryptonite for sharks. (2012)
1:19
One of the Greatest Meetings of the Minds in History
These scientists were the pioneers of quantum mechanics.
2:28
The “Hippy Days” of Quantum Physics
How a group of free-thinking physicists in the 1970s helped shape quantum physics.
1:43
How Large Language Models Like ChatGPT Work
It’s not always easy to tell the difference between writing by a human and ChatGPT.
1:44
Inside the Fight To Develop a Malaria Vaccine
These scientists were on the verge of a breakthrough with a promising vaccine nearing approval.
4:18
Campi Flegrei: Italy’s Underground Super Volcano
In Italy hundreds of thousands of people are living directly on top of an active volcano.
3:43
Is the Human Brain Actually Two Minds?
Severing the connection between the two halves of the brain reveals how the hemispheres function.
5:17
Is Pain Made in the Brain?
This experiment shows how the brain can interpret — and misinterpret— pain.
3:40
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