We Put the Best Multimeters to the Test. Our Top Pick is Ideal for Both Beginners and Pros

Want to safely repair an electric appliance or simply test your home’s wiring? Get shopping tips as well as our top tool ...

Is Your Diamond Real? Here’s How to Tell

Determining the authenticity of a diamond requires professional equipment and a highly trained eye. At-home tests do ...
Engineeringness on MSN

Diodes Explained: One-Way Current Flow in Electronics

This video explains what a diode is and how it controls the direction of current in electronic circuits. Diodes allow current ...
CNET

I Was Tired of My LED Bulbs Dying, So I Hunted Down an Expert for the Truth

That means inside every LED bulb are tiny circuit components -- and their soldered contact points -- which are far more vulnerable than the diode itself. The Lighting Research Center of the Rensselaer ...