Power Quality Symptoms & Solutions e-book is is written from an electronics point of view, rather than a power engineering one. And in so doing, provides the bridge between theory and real life. According to the book introduction more and more lecturers are using this material as a reference in their courses. You can find →
It seems that there is a trend to convert video systems over from an old, all-analog system to a modern, IP-based system with cameras powered over the Ethernet line using PoE (Power over Ethernet). Weird AC Voltages in a PoE Camera System post at Control Geek Blog talks about an interesting PoE (Power over Ethernet) →
The stand for Ubuntu Linux also had some Meego people showing that Meego is still going wrong. I got my hands on the Nokia N9 prototype version (I did not get permission to take picture of it). There was also Intel Meego tablet reference platform shown on the stand. The MeeGo people from Nokia were →
TV manufacturers try to put in all kind of new technical gimmicks to their products. Top telly tech fails to drive new set sales. The technologies telly makers are promoting in a bid to persuade punters to replace existing TVs are failing to excite consumers: LED backlight technology, internet connectivity and 3D. LED was the →
Stephen Spielberg’s Minority Report (released nearly 10 years ago) captured the imagination of many in the technology space. Today we are seeing some things from the movie start to come true right in front of our eyes today. Entering The Minority Report Era: A Video Series article shows some examples of those technologies. The video →
A fractal is a figure with a self-similar pattern. Usually the fractals are calculated with a computer, but is is possible to produce Fractals without a Computer! It’s very cool – partly because it looks neat, but also partly because it shows you something important about fractals. Optical video feedback is a well-known phenomenon. If →
Audiophiles seem to revel in minor controversies – vinyl vs CD’s, tubes versus solid state, capacitor, wires, magic dots… and negative feedback. At one extreme (“objectivists” and engineers), the position is that “feedback makes amplifiers perfect”. At the other extreme (“subjectivists”) usually claim that “feedback is a menacing succubus that sucks the life out of →
Are Star-Quad is well known in the audio industry as a good cable construction to use in demanding environments because its superior handling of EMI. And that reputation is based in science; the Canare document, for example, contains lots of claims which can be tested objectively, and all those claims are rooted in physics-based (reality-based) →
The DJ mixer crossfader was originally developed as a control for implementing smooth fades from one program source to another, but where did the idea come from? Evolution of the DJ Crossfader article tells the history and development of crossfader in DJ mixers. →
Why 3D doesn’t work and never will. Case closed. article tells about a letter is from Walter Murch, the most respected film editor and sound designer in the modern cinema (and not a big fan of 3D). The article comments on 3D cinema: dark, small, stroby, headache inducing, alienating. And expensive. The first problem is →