Technology

Researchers create battery-free phone

Battery-free phone

Researchers in the United States have unveiled a prototype of a battery-free mobile phone, using technology they hope will eventually come to be integrated into mass-market products.

How Microsoft became the surprise tech innovator

The latest version of the Surface Pro.

When Microsoft unveiled the first Surface tablet five years ago, it was a spectacular failure. But the company persisted, and today it's making the most visionary computers in the industry, if not the best machines, period.