I've been considering a blog on the 110 or 230 Volt issue for a while.  While browsing the Internet I came across a great summary by Borat over at  engineering...

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

The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.

While not as popular as it once was, frame leakage protection does still have some use in some circumstances.  In essence frame leakage is an earth fault...

This is the first of two posts on the resistance of conductors. In the next post I will look at the ac resistance, including skin effect and we deal with...

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...

Often document control is dictated by project requirements, for example a particular organisation may have an existing numbering system. Existing company...

When looking at the design of a lighting scheme it is useful to have an understanding on the nature of light itself and some of the basic theory associated...

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.

Using laser optical pulses the random number generator utilizes the time between arrival of random photos to generate the numbers, ensuring true accuracy...