Living Underground in Beijing
Chairman Mao’s paranoia of a Soviet invasion led to hundreds of thousands of Beijing residents put to work for a decade building an 85-square-km underground city to serve as a massive bomb shelter. In...
20 Loka 201630min
What's the What with Fish Fraud?
Fish fraud, misrepresenting a fish as a more expensive one, costs Americans $25 billion a year. And because less than 100 inspectors check for fraud in the US and everyone from wholesalers to sushi re...
18 Loka 201640min
How the Census Works
Counting humans has been happening for a long, long time. It usually had to do with taxing them, but now census data can reveal a lot about a population and help satisfy its needs. Count us in for thi...
13 Loka 201644min
Hibernation: Not a Snooze
When animals are faced with scarce food in the winter, they have two choices to stay alive: migrate or hibernate. For hibernators, their bodies undergo some mind-boggling physiological changes in the ...
11 Loka 201645min
Why Did Easter Island's Civilization Collapse?
When the first Europeans landed on Rapa Nui, which they renamed Easter Island, they were puzzled by what happened there. Only a few thousand people lived there but there were signs of a massive civili...
6 Loka 201656min
The Amazing History of Soda
The soda we get instantly mixed at a fast-food joint owes a lot to a rich history going back to the Roman baths, that features drugs, diseases and explosions. Learn all about soda and soda fountains i...
3 Loka 201647min
How Polar Bears Work
Polar bears are more than just lovable creatures that roam the ice in search of food. They're one of the most fascinating animals on planet Earth. Sadly, as ice shrinks, so does their habitat. Learn a...
29 Syys 201646min
How Ice Ages Work
Believe it or not, we live in an ice age. The polar glaciers give it away. Those glaciers used to come clear down to New York. We now know the traces they left are everywhere if you know what to look ...
27 Syys 201646min
