How Wuhan is Using Digital Gatekeeping to Reopen
Season 47
Episode 10
About the Episode
Anyone entering or leaving a building or public space in Wuhan is required to scan special location-marking codes with their phone.
Aired:
| Expires: | Runtime: 2m 47s
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Extras
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Dino Birds Preview
Fossils reveal how birds survived the killer asteroid and became today’s only living dinosaurs.0:29 -
Extreme Airport Engineering Preview
Follow the race to build a world-class airport on the site of one of America’s busiest flying hubs.0:30 -
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How Atomic Clocks Keep Perfect Time
Atomic clocks use quantum physics and the resonant frequency of atoms, like cesium, to define time.2:15 -
The Most Baffling Idea in Physics, Explained
Quantum entanglement defies our everyday understanding of reality.3:33 -
What Happens to Your Body During a Speed Eating Competition?
Competitive eaters stretch their stomachs beyond limits. Here’s what happens inside their bodies.5:16 -
Why Hot Peppers Set Your Mouth on Fire
The chemical that makes chili peppers so hot evolved to keep animals from eating the plants.4:02 -
Flight Turbulence Is Actually Getting Worse
It’s not all in your head - flights really are bumpier these days.1:48 -
Hunt for the Oldest DNA: Extended Version
Follow the quest to recover DNA millions of years old for the very first time.1:24:39 -
Lost Tombs of Notre Dame Preview
Mysterious bodies are found under one of the world’s most famous cathedrals.0:30
