Following on from my post on railway electrification voltages, I thought an introduction to traction substations would be a good idea. Traction substations...

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...

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

These lifts were first built in 1884 by J. E. Hall and called a paternoster ("Our Father", the first two words of the Lord's Prayer in Latin) due to its...

IEEE TV has a part series of videos on wind power and it's implication. For a really good overview to the technologies and issues around wind power, these...

Two driverless and solar power vans have departed from Italy on their way to China via the silk road. During the 13,000 kM trip the vans will drive themselves...

Modelica is an open source (free) software language for modelling complex systems. Having never used it before, I thought I would download a development...

If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...

The other day I was reading 'Night of the New Magicians' by Mary Pope Osborn with my son.  The story is about a young boy and girl who travel back in time...

The calculation of current in a three phase system has been brought up on our site feedback and is a discussion I seem to get involved in every now and...