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次に再生
Why don't trains make *that* sound anymore? 2 分 
$10,000 Power Washer vs Fruit 1 分 
The Real Reason We Should Revive Extinct Animals 16 分 
Why ketamine is suddenly so popular 7 分 
What your nipple shape says about you 5 分 
The Insane Engineering of the P-38 Lightning 27 分 
Mac vs Windows - It's not close in 2026! 22 分 
Reading StarCloud’s Whitepaper So You Don’t Have To 22 分 
How does the space station never run out of oxygen? - Alvaro Romero-Calvo and Theo St Francis 7 分 
Europe Just Got Stronger 2 分 
Why You Should Get Your DNA Sequenced After You Die 10 分 
Earthquakes Explained: Crash Course Geology #14 12 分 
Volcanoes Explained: Crash Course Geology #13 11 分 
How We Built the ISS - Part 2 29 分 
The words that reveal how smart you aren’t 8 分 
The Hidden Engineering Behind the Falkirk Wheel 16 分 
Are you one of the lucky 50% that experience it? 2 分 
Prohibition - OverSimplified 34 分 
The Physics Behind the Thumb Trick 18 分 
It took me 30+ years to realize what I’ll teach you in 10 minutes 13 分 
The Grid That Doubles the Strength of the Ground 19 分 
This Glacier Is Bleeding. It Gets Weirder. 1 分 
Data centers can’t win on Earth. How about in space? 2 分 
Why some of America’s wild horses are being slaughtered 2 分 
What REALLY Moves The Ocean (Not The Moon) 1 分 
The ISS Is Crashing Into The Ocean 1 分 
What does a parent owe their child? | The Gray Area 27 分 
How Google broke the internet | The Gray Area 40 分 
I Wrote a NEW Sci-Fi with Project Hail Mary Author Andy Weir 60 分 
Why isn't Congress doing more to protect America's food safety? 2 分 
Drift Trike vs Wall of Death!! 29 分 
The NFL's Concussion Crisis 22 分 
Why 9/11 memes are everywhere 2 分 
Inside America’s Poorest Region Everyone Forgot 36 分 
The Los Angeles Aqueduct is Wild 23 分 
The Massive Machine Hidden in the Deep Ocean 16 分 
Name That Infrastructure (Ep. 11) #shorts 1 分 
New Alien Host Planet Just Dropped 1 分 
Name That Infrastructure (Ep. 2) #shorts 1 分 
They Created A Skin Cancer Vaccine 1 分 
NASA Found A Very Strange Star 1 分 
1950's ATV Concept Build Part 2 18 分 
What Bothers Physicists About Black Holes (Interview with Brian Cox) 74 分 
What If You Dove Into Saturn? 1 分 
Do Retention Ponds Actually Work? 18 分 
The WEIGHTLESS Machine 11 分 
Name That Infrastructure (Ep. 14) #shorts 1 分 
What technology can't give you | The Gray Area 45 分 
Why Fast Food Got So Expensive 20 分 
How Big Pork takes money from small farmers — then uses it to lobby against them 2 分 
Will I ever want to have kids? | The Gray Area 56 分 Why don't trains make *that* sound anymore?
2026 2 分
If you've been on a modern train you won't have noticed that classic "clickety-clack" sound anymore. This is because train tracks are now one continuous piece of rail without gaps. But one long piece of metal without room to expand when hot is dangerous. Thus, engineers had to come up with an ingenious solution involving... jagged rocks?
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