An ever-expanding network of cell towers means you can call a friend from some of the world's most remote spots. But can you do it from the bottom of the ocean?
WHAT'S INSIDE: PHONES
- Cell Phones
- Cell Phone Apps
- Home Telephones
- Telephone Technology
You just sent someone a text message on your iPhone, and now you're waiting for him to text back. You know he's typing something because you see those three little bubbles. But how does your phone know that?
Smartphones can get a little hot when they're engaging in some heavy activity. But can that and their owners' exercise push them over the edge and make them overheat?