Depending on who you talk to, some view Bluetooth headsets as a novelty, while others heavily rely on the rich features that bring to the table in being a supplemental item to any mobile handset. We've recently managed to acquire one of LG's latest Bluetooth headsets, the LG HBM-585, and managed to put it through its paces to find out what unique features it packs to make it stand uniquely versus ... more.

This is how to bench check a single capacitor and a dual capaitor ... more.

How to test and recognize a Diode, what does a diode do anyway? ... more.

Prank your friends with this homemade lightbulb hack! ... more.

Watch as an ordinary Sharpie Pen comes alive! You can make it move with your mind...or can you? ... more.

Build this ultra-simple AC electric generator from magnets, wire, and cardboard. (And a big nail!) Light a small lightbulb, or flash a red LED. This demonstrates how generators work. Now if you want a more useful device, use a small DC motor as a generator, since it has much better magnetics design. All motors are generators. Figure out how to spin a motor's shaft, and you can make a small powe... more.

This video describes Resistor Color Codes and how to read them. It relates Resistor Color Codes to scientific numbers and engineering notation. ... more.

Change a normal 9v battery into a life saver. If you have ever run out of juice on your phone and could really use a quick charge then you need a USB battery. Shopping list: 1 5.1v zener diode 1 330-ohm resistor 1 9v battery connector 1 9v battery solder and soldering iron Instructions: 1. Solder the Zener diode to the left and right USB connector prongs. 2. Solder the black wire of t... more.

This video is about electrical wires. It describes common types, configurations of wire, and wire terminology. It explain the gauge system of rating wire size (diameter), circular mils, current capacity, and others. ... more.

Learn How Does Electricity Work - Energy and Electricity in Science ... more.