DNA computers can use biological material to perform mathematical functions and store information, but their power sources have been fragile. Researchers now say they’ve developed a reliable source: ...

There are six power banks on my desk right now. On the shelves behind me are a dozen (two dozen?) more. Over the past three years, I’ve tested more than 55 portable battery packs for Engadget — and ...

Patrick Holland has been a phone reviewer for CNET since 2016. He is a former theater director who occasionally makes short films. Patrick has an eye for photography and a passion for everything ...