It's been a busy few months on different projects or busy couple of decades depending on how I look at it. I can say that on the odd (frequent) occasion...

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

MIT OpenCourseWare, makes the materials used in teaching all MIT subjects available on the Web, free of charge, to any user in the world.

In a previous article I looked at the dc resistance of conductors and in this article we turn our attention to ac resistance. If you have not read the...

It wasn't so long ago I was telling someone that I don't use rules of thumb as most things are easily calculated anyhow.   As it turns out I last week...

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Various techniques exist to enable the correct selection of batteries for UPS applications.  The procedure described below is one of the more common. ...

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

Often us engineers get so bogged down in equations, using software, producing drawings and writing specifications that this becomes the sole focus.   ...