Extend the LM358 op-amp family’s output voltage range by cascading the op-amp with a few simple, inexpensive components.

A new material makes lithium batteries longer-lasting and more efficient—great news for electric cars and clean energy storage.

Discover how to make a DIY hand-powered mobile phone charger using simple materials such as two small DC motors and a piece of cardboard. This step-by-step tutorial covers mounting the motors, wiring ...

Drawing tablets have been a favorite computer peripheral of artists since its inception in the 1980s. If you have ever used a drawing tablet of this nature, you may have wondered, how it works, ...

— The 9th Circuit will hear Netchoice's challenge to California's law requiring high default privacy settings for online services accessed by minors. — Also at the 9th Circuit, the Trump ...

There are plenty of technological ways to cut down on spam calls, but this is the one that works best. Jeff Carlson writes about mobile technology for CNET. He is also the author of dozens of how-to ...