Why can some people sleep through a jackhammer at the window, while others waken with the lightest whisper? Host Rachel Martin speaks to Johns Hopkins Sleep Disorders Center researcher Jeffrey Ellenbogen about his new study on how noises interrupt sleep.
We spend about one-third of our lives sleeping, but much of that function remains a mystery. Weekend Edition Sunday is asking some pretty fundamental, yet complicated, questions about why we do it and why we can't seem to get more of it.
Dr. Matthew Walker says the question of why we sleep remains "that archetypal mystery."
Walker, the principal investigator at the sleep lab the University of California, Berkeley, works with patients who suffer from sleep abnormalities. He says the complexity of sleep makes the research that much more fascinating.
The effects of climate change often happen on a large scale, like drought or a rise in sea level. In the hills outside Missoula, Mont., wildlife biologists are looking at a change to something very small: the snowshoe hare.
Life as snowshoe hare is pretty stressful. For one, almost everything in the forest wants to eat you.
Alex Kumar, a graduate student at the University of Montana, lists the animals that are hungry for hares.
"Lynx, foxes, coyotes, raptors, birds of prey. Interestingly enough, young hares, their main predator is actually red squirrels."
EcoATMs take old cellphones, MP3 players and tablets in exchange for cash. But the automated kiosks, operating 650 machines in 40 states, are getting bad reviews from police, who are concerned the machines are a magnet for thieves.
The transaction is fairly simple. The machine walks you through the process, scanning your ID to certify you're over 18 and verify your identity. An ecoATM employee inspects the transaction remotely in real time. Once the seller's identity is verified, the kiosk takes the device and assesses its value. You get the cash, and the device is recycled.
In China, the Internet isn't the free-for-all that it is in the United States. China's communist government censors what's published and some of what's shared online. But some citizens are working around government censors by using agreed-upon "public" code.
NASA Administrator Charles Bolden speaks before Friday night's launch of the LADEE moon orbiter. The craft has run into a small technical issue, NASA says, which it will fix before it arrives at the moon next month.
Glaciers in the European Alps pose a scientific mystery. Now, they started melting rapidly back in the 1860s, and in the span of about 50 years, some of the biggest glaciers retreated more than half a mile. Nobody could explain why. Now, a new study suggests the glaciers melted because they were covered with soot from the Industrial Revolution. NPR's Richard Harris reports.