Every year, more than 50 million 911 calls are made from mobile phones in the United States, according to the National Emergency Number Association. But unlike 911 calls placed from traceable landlines, wireless calls do not provide emergency call center operators with location information-a shortcoming that can hold up emergency responders. To avoid such delays, the FCC initiated a plan requiring wireless carriers to provide call centers with callers’ geographic coordinates, their mobile-phone callback numbers, and the locations of the towers or antennas receiving their calls, by 2005. Experts estimate that it will take longer for the nearly 6,000 U.S. emergency call centers to upgrade their technology to accommodate the two methods of location tracking-handset-based assisted GPS and network-based tower location-used by wireless carriers. Here’s how it will work.
These materials were meant to revolutionize the solar industry. Why hasn’t it happened?
Perovskites are promising, but real-world conditions have held them back.
Why China is still obsessed with disinfecting everything
Most public health bodies dealing with covid have long since moved on from the idea of surface transmission. China’s didn’t—and that helps it control the narrative about the disease’s origins and danger.
Anti-aging drugs are being tested as a way to treat covid
Drugs that rejuvenate our immune systems and make us biologically younger could help protect us from the disease’s worst effects.
A quick guide to the most important AI law you’ve never heard of
The European Union is planning new legislation aimed at curbing the worst harms associated with artificial intelligence.
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.