When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around the dial mean.

Ok, it's been almost a decade since I've had to study Maxwell's equations, but I remember a certain facet from those equations that always astounded me. It was the fact that the speed of light could ...

This is our second activity that requires the use of a smartphone or tablet. Please let us know what you think. E-mail [email protected] with feedback about the use of technology in this—and ...

Introducing the Datacolor LightColor meter. Measures all types of lighting + color temperature, wirelessly. Streams data to your phone in real-time via its free app. Datacolor today announced the ...