New systems will use your cell phone to tell if your food is fresh
Africa's rapid growth is not affecting the continent equally. Here's a look at five African countries that represent some of the brightest spots.
Even faster than the fast Fourier transform
Some answers from an atmospheric scientist
Using in-car monitoring apps to keep an eye on things like blood sugar
But the long-term effects of prolonged cellphone use require further study—and will spark fresh controversy
Your cellphone does not in itself cause cancer. But in the daily sea of radiation we all travel, there may be subtler dangers at work, and science is only just beginning to understand how they can come to affect people like Per Segerbäck so intensely
Popular Science talks to Isabella Rossellini about her new series of sexy science films
The next big thing in alternative energy: your body. Wasted energy from your movements may not be enough to power your house, but it will be charging your cellphone and more within the next decade
Web widgets aplenty are shown at the emerging technology debutante ball
Jellyfish invasions, Internet auctions, god particles: Read about the year's biggest science stories before they happen. Bonus: How to decipher geeky jargon and when to buy a DeLorean
Cellphones, microchips, cars, even iPhones—there's virtually no high-tech Western product that China's cloners can't copy. Pretty soon, you might even prefer their work
The search is on for nukes in the U.S. Here are the tools
In the escalating arms race between battery power and consumption, The Cells are losing to The Gadgetsâ€”Big time. Question is, can the chemists catch up to the engineers?