Sometimes it’s useful to be able to quickly lookup a piece of technical information.  This note is a collection of information related to motors, and in...

This post is quick introduction and overview to different railway electrification voltages used in answer to a question sent in via email. While there...

Lead acid batteries are cost effect and reliable, making them suitable for many applications.This note examines topics of interest associated with the...

GE have put together a time-lapse video shown flight take-off and landings at some airports. An interesting view:

When thinking about watts (W) or kilowatt (kW = 1000 W) it can be useful too keep in mind the fundamental ideas behind the unit. Watt is not a pure electrical...

Control theory looks at how systems work and are controlled from a mathematical view.  This note gives a brief introduction to some of the concepts – more...

I received this question by email a few weeks. First thoughts was that it is a product of the mathematics of rotating a straight conductor in a magnetic...

When selecting a cable, the performance of the cable under fault conditions is an important consideration. It is important that calculations be carried...

Everything physical in electrical engineering from insulations to conductors revolves around materials. Here we are listing common materials along with...

We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.