Chris Dawson says he prefers G+ to Facebook because of information quality. Facebook has become pure noise. The reason it is pure noise is that I was an inexperienced social media user when I first started using it. I added whoever to my friend list. Now I get random political messages from both sides, people [...]
Current is usually measured as a voltage drop across a known resistance. David L. Jones notes that this ‘burden voltage’ can be a significant disturbance in low voltage and low current circuits. His solution is the µCurrent. He provides a description and theory of operation as well as a circuit diagram for the device at [...]
Tagged build, circuits, measurementDr. Dubik and Dr. Wood thought it necessary to make sure that ‘dead as a doornail’ was indeed an appropriate analogy. Since advanced life support technology has confused things somewhat and there are now laws concerning brain death, standards matter. So How Dead Is a Doornail? If the definition of death as expressed by the [...]
You’d think the Amateur Radio types would have Ohm’s law in their toolbelt and not be afraid to use it. Between QRZ forums and this month’s QST, it doesn’t seem so when it comes to emergency backup power systems. For medium sized solar systems with battery backup, systems in the one to ten kilowatt hour [...]
DC for data centers at Gigaom has some good history and a few interesting tidbits on a trend towards DC in data centers. They miss the big issue, though. The reason that Tesla and Westinghouse won out over Edison in establishing AC as the power distribution standard was about electrical power delivery over distance. With [...]
The new user interface in Ubuntu really shakes some folks up. jorge’s stompbox has The Power User’s Guide to Unity that provides an index to the Q&A for Ubuntu users and developers on common issues. There are also links to videos and other guides about Unity. The list of application indicators, for instance, says to [...]
John Weidner has several posts on Bible facts you may not know at Random Jottings. In #3 he notes that people in Jesus’ time didn’t travel alone but lived, and traveled, in extended family groups. There is also the item that fishing belonged to the state and the fishermen Jesus recruited had to have had [...]
Wireless Telegraphy in Australia is a history of early radio communications efforts between Australia and England. It makes me think of the opening of the movie Dr. No where the Bermuda agent is assassinated as his secretary opens the radio link to London. There were large installations involved in transcontinental communications, even up through the [...]
If you were 18, what do you really need to know? Rightwing News has a list and it’s good for more than just the 18 year old crowd. There are at least six key areas of your life: health, career, romantic, social, money, and religion. If you neglect any one of those areas, it will [...]
Elegant Coding looks like a good blog to keep an eye on. Eleven Equations True Computer Science Geeks Should (at Least Pretend to) Know has a list that will have me going back to the books to figure out what the symbols mean (again) and figure out what these important mathematical concepts mean. A Confederacy [...]